Publications in Journals

The maps of predicted distribution of SOC content in Europe are based on aggregated 23,835 soil samples collected from the LUCAS Project (samples from agricultural soil), the BioSoil Project (samples from European forest soil), and the “Soil Transformations in European Catchments” (SoilTrEC) Project (samples from local soil data coming from five different critical zone observatories (CZOs) in Europe). The Predicted SOC content was the lowest in permanent crops and arable lands; highest values are found in wetlands and grasslands. Moreover, Hungary and Portugal show the lowest SOC content with the averages 2.21% and 2.68%, whereas Ireland (13.29%) and Sweden (11.15%) hshow ighest SOC contents.  

Spatial coverage: 25 European Union Member States (excluded Romania, Bulgaria, Croatia), and Switzerland
Pixel size: 1Km
Projection: ETRS89-LAEA-10-52
Temporal coverage: 2014
Input data source: LUCAS, BioSoil and CZOs point data

Via this page you can register for downloading the output and input data that are mentioned in the paper

The data are described in:

“Combining soil databases for topsoil organic carbon mapping in Europe” (E. Aksoy, Y.Yigini and L. Montanarella), published in PLOS ONE. doi: 10.1371/journal.pone.0152098, that is summarized as follows: 

Accuracy in assessing the distribution of soil organic carbon (SOC) is important because it plays a key role in the functions of both natural ecosystems and agricultural systems. There are several studies in the literature with the aim of finding the best method to assess and map the distribution of SOC content for Europe. This study aims to search for the effects and performances of using aggregated soil samples coming from different studies and land-uses.

The total number of the soil samples in this study was 23,835 and they were collected from the “Land Use/Cover Area frame Statistical Survey” (LUCAS) Project (samples from agricultural soil), the BioSoil Project (samples from forest soil), and the “Soil Transformations in European Catchments” (SoilTrEC) Project (samples from local soil data coming from five different critical zone observatories (CZOs) in Europe). Moreover, 15 spatial indicators (slope, aspect, elevation, compound topographic index (CTI), CORINE land-cover classification, parent material, texture, world reference base (WRB) soil classification, geological formations, annual average temperature, min-max temperature, total precipitation and average precipitation (for the years 1960–1990 and 2000–2010)) were used as auxiliary variables in this prediction. One of the most popular geostatistical techniques, Regression-Kriging (RK), was applied to build the model and assess the distribution of SOC.

This study showed that, even though the RK method was appropriate for successful SOC mapping, using combined databases did not increase the statistical significance of the method results for assessing the SOC distribution as much as expected. Combining local data coming from CZOs with LUCAS samples was found as more significant than combining the two big datasets of the LUCAS and Biosoil Projects. Moreover, the effect of the chosen auxiliary variables on SOC prediction seems more important than increasing the number of the soil samples. According to the results: SOC variation was mainly affected by elevation, slope, CTI, average temperature, average and total precipitation, texture, WRB and CORINE variables at the European scale in the model. Moreover, the highest average SOC contents were found in the wetland areas; agricultural areas have much lower SOC content than forest and semi natural areas; Ireland, Sweden and Finland show the highest SOC values; Portugal, Poland, Hungary, Spain and Italy show the lowest values with an average 3%.

Data (available: 3 output datasets and 1 input dataset):

0.     Input: soil sample point data; attribute: SOC for each point.

1.     Predicted distribution of SOC content by using 1 dataset (LUCAS) (Figure 3 in the article)

2.     Predicted distribution of SOC content by using 2 datasets (LUCAS-CZOs) (Figure 4 in the article)

3.     Predicted distribution of SOC content by using 3 datasets (LUCAS-CZOs-BIOSOIL) (Figure 5 in the article)

Acknowledgments

Funding support is acknowledged from the European Commission FP 7 Collaborative Project “Soil Transformations in European Catchments” (SoilTrEC) (Grant Agreement no. 244118).

A new baseline of organic carbon stock in European agricultural soils using a modelling approach Proposed European policy in the agricultural sector will place higher emphasis on soil organic carbon (SOC), both as an indicator of soil quality and as a means to offset CO2 emissions through soil carbon (C) sequestration. Despite detailed national SOC datasets in several European Union (EU) Member States, a consistent C stock estimation at EU scale remains problematic. Data are often not directly comparable, different methods have been used to obtain values (e.g. sampling, laboratory analysis, etc.) and access may be restricted. Therefore, any evolution of EU policies on C accounting and sequestration may be constrained by a lack of an accurate SOC estimation and the availability of tools to carry out scenario analysis, especially for agricultural soils. Under this context, a comprehensive model was established at a pan-European scale (EU + Serbia, Bosnia and Herzegovina, Croatia, Montenegro, Albania, Former Yugoslav Republic of Macedonia and Norway) using the agro-ecosystem SOC model CENTURY. Almost 164,000 combinations of soil-climate-land use were computed, including the main arable crops, orchards and pasture. The model was implemented with the main management practices (e.g. irrigation, mineral and organic fertilization, tillage, etc.) derived from official statistics. The model results were tested against inventories from the European Environment and Observation Network (EIONET) and approximately 20,000 soil samples from the 2009 LUCAS survey, a monitoring project aiming at producing the first coherent, comprehensive and harmonized top-soil dataset of the EU based on harmonized sampling and analytical methods. The CENTURY model estimation of the current 0-30 cm SOC stock of agricultural soils was 17.64 Gt. The model predicted an overall increase of this pool according to different climate-emission scenarios up to 2100, with C loss in the south and east of the area (involving 30% of the whole simulated agricultural land) compensated by a gain in central and northern regions. Generally, higher soil respiration was offset by higher C input as a consequence of increased CO2 atmospheric concentration and favourable crop growing conditions, especially in northern Europe. Considering the importance of SOC in future EU policies, this platform of simulation appears to be a very promising tool to orient future policymaking decisions. Access the paper Last Update: 14/10/2014

Highly spatially- and seasonally-resolved predictive contamination maps for persistent organic pollutants: Development and validation A reliable spatial assessment of the POPs contamination in soils is essential for burden studies and flux evaluations. Soil characteristics and properties vary enormously even within small spatial scale and over time; therefore soil capacity of accumulating POPs varies greatly. In order to include this very high spatial and temporal variability, models can be used for assessing soil accumulation capacity in a specific time and space and, from it, the spatial distribution and temporal trends of POPs concentrations. In this work, predictive contamination maps of the accumulation capacity of soils were developed at a space resolution of 1 × 1 m with a time frame of one day, in a study area located in the central Alps. Physical algorithms for temperature and organic carbon estimation along the soil profile and across the year were fitted to estimate the horizontal, vertical and seasonal distribution of the contamination potential for PCBs in soil (Ksa maps).The resulting maps were cross-validated with an independent set of PCB contamination data, showing very good agreement (e.g. for CB-153, R2 = 0.80, p-value = 2.2 · 10- 06). Slopes of the regression between predicted Ksa and experimental concentrations were used to map the soil contamination for the whole area, taking into account soil characteristics and temperatures conditions. These maps offer the opportunity to evaluate burden (concentration maps) and fluxes (emission maps) with highly resolved temporal and spatial detail.In addition, in order to explain the observed low autumn PCB concentrations in soil related to the high Ksa values of this period, a dynamic model of seasonal variation of soil concentrations was developed basing on rate parameters fitted on measured concentrations. The model was able to describe, at least partially, the observed different behaviour between the quite rapid discharge phase in summer and the slow recharge phase in autumn. Access the paper Last Update: 14/10/2014

Prediction of Soil Organic Carbon at the European Scale by Visible and Near InfraRed Reflectance Spectroscopy Soil organic carbon is a key soil property related to soil fertility, aggregate stability and the exchange of CO2 with the atmosphere. Existing soil maps and inventories can rarely be used to monitor the state and evolution in soil organic carbon content due to their poor spatial resolution, lack of consistency and high updating costs. Visible and Near Infrared diffuse reflectance spectroscopy is an alternative method to provide cheap and high-density soil data. However, there are still some uncertainties on its capacity to produce reliable predictions for areas characterized by large soil diversity. Using a large-scale EU soil survey of about 20,000 samples and covering 23 countries, we assessed the performance of reflectance spectroscopy for the prediction of soil organic carbon content. The best calibrations achieved a root mean square error ranging from 4.1 to 15 g C kg-1 for mineral soils and a root mean square error of 50 g C kg-1 for organic soil materials. Model errors are shown to be related to the levels of soil organic carbon and sand content in the samples. Although errors are ~5 times larger than the reproducibility error of the laboratory method, reflectance spectroscopy provides unbiased estimates of the soil organic carbon content that could be used for assessing the mean soil organic carbon content of large geographical entities or countries. This study is a first step towards providing uniform continental-scale spectroscopic estimations of soil organic carbon, meeting an increasing demand for information on the state of the soil that can be used in biogeochemical models and the monitoring of soil degradation. Access the paper Last Update: 14/10/2014

Contaminated sites in Europe: Review of the current situation based on data collected through a European Network Under the European Union (EU)Thematic Strategy for Soil Protection, the European Commission has identified soil contamination as a priority for the collection of policy-relevant soil data at European scale. In order to support EU soil management policies, soilrelated indicators need to be developed which requires appropriate data collection and establishment of harmonized datasets for the EU Member States. In 2011-12, the European Soil Data Centre of the European Commission conducted a project to collect data on contaminated sites from national institutions in Europe using the European Environment Information and Observation Network for soil (EIONET-SOIL). This paper presents the results obtained fromanalysing the soil contaminated sites data submitted by participating countries. According to the received data, the number of estimated potential contaminated sites is more than 2.5 million and the identified contaminated sites around 342 thousand. Municipal and industrial wastes contribute most to soil contamination (38%), followed by the industrial/commercial sector (34%).Mineral oil and heavymetals are themain contaminants contributing around 60% to soil contamination. In terms of budget, the management of contaminated sites is estimated to cost around 6 billion Euros (C) annually. Access the paper Last Update: 14/10/2014

Willingness to pay for soil information derived by digital maps: A choice experiment approach Soil surveys and the information they provide are commonly believed to be good investment, with significant benefits accrued to their users. To date, the empirical evidence for this comes from studies that have shown how enhanced soil information can alter agricultural practices in order to yield higher returns. This study attempts to estimate the economic value of soil information generated by a host of new proximal and in situ geophysical methods for the assessment of the following soil properties: carbon content, water content, clay content, bulk density and soil depth. The study also adopts a novel approach to the economic valuation of soil information by employing for the first time a choice experiment in order to estimate the willingness-to-pay (WTP) of potential users of the digital maps and their features. The choice experiment took the form of an online survey, administered to about a thousand individuals from the wider soil community. The results reveal significant WTP for maps of high resolution and accuracy that offer map interpretation in addition to a number of soil properties. Access the paper Last Update: 14/10/2014

The LUCAS topsoil database and derived information on the regional variability of cropland topsoil properties in the European Union The Land Use/Land Cover Area Frame Survey (LUCAS) is a pilot project to monitor changes in the management and nature of the land surface of the European Union. Sampling is based on the intersection points of a 2 x 2 km grid covering the EU. In the 2009 LUCAS exercise, the sampling of soil complemented the general land use and land cover survey, through the collection of topsoil samples from around 10% of the sites visited in that year. Nearly 21,000 soil samples were collected in twenty-five EU Member States (EU-27 except Bulgaria and Romania) with the aim to produce the first coherent physicochemical database of soils at pan-European Scale. Soil samples have been analysed for basic soil properties, including particle size distribution, pH, organic carbon, carbonates, NPK and CEC, and multispectral properties. Preliminary studies show the outstanding potential of the dataset in enhancing the knowledge base for soils in the EU. The current paper provides an introduction to the LUCAS Topsoil 2009 project and provides an example of data applicability by highlighting some of the results on organic carbon measurements in a regional comparison. Access the paper Last Update: 14/10/2014

Tier-based approaches for landslide susceptibility assessment in Europe In the framework of the European Soil Thematic Strategy and the associated proposal of a Framework Directive on the protection and sustainable use of soil, landslides were recognised as a soil threat requiring specific strategies for priority area identification, spatial hazard assessment and management. This contribution outlines the general specifications for nested, Tier-based geographical landslide zonings at small spatial scales to identify priority areas susceptible to landslides (Tier 1) and to perform quantitative susceptibility evaluations within these (Tier 2). A heuristic, synoptic-scale Tier 1 assessment exploiting a reduced set of geoenvironmental factors derived from common pan-European data sources is proposed for the European Union and adjacent countries. Evaluation of the susceptibility estimate with national-level landslide inventory data suggests that a zonation of Europe according to, e.g. morphology and climate, and performing separate susceptibility assessments per zone could give more reliable results. To improve the Tier 1 assessment, a geomorphological terrain zoning and landslide typology differentiation are then applied for France. A multivariate landslide susceptibility assessment using additional information on landslide conditioning and triggering factors, together with a historical catalogue of landslides, is proposed for Tier 2 analysis. Access the paper Last Update: 14/10/2014

Report on landslide mapping concepts and methods for landslide risk management in Europe. Landslide inventories and susceptibility and hazard maps are key tools for land use planning and management, civil protection plans, civil engineering works, and risk reduction programmes. Their importance helps understanding why approximately one sixth of all contributions to the Second World Landslide Forum were related to recent advances in these topics. This volume presents the state of the art on landslide inventory and susceptibility and hazard zoning. It contains experiences, methods and techniques applied in different physiographic, geological and climate settings of the world and for different types of landslides, from site-specific investigations to global scale analysis Access the paper Last Update: 14/10/2014

Tier-based approaches for landslide susceptibility assessment in Europe In the framework of the European Soil Thematic Strategy and the associated proposal of a Framework Directive on the protection and sustainable use of soil, landslides were recognised as a soil threat requiring specific strategies for priority area identification, spatial hazard assessment and management. This contribution outlines the general specifications for nested, Tier-based geographical landslide zonings at small spatial scales to identify priority areas susceptible to landslides (Tier 1) and to perform quantitative susceptibility evaluations within these (Tier 2). A heuristic, synoptic-scale Tier 1 assessment exploiting a reduced set of geoenvironmental factors derived from common pan-European data sources is proposed for the European Union and adjacent countries. Evaluation of the susceptibility estimate with national-level landslide inventory data suggests that a zonation of Europe according to, e.g. morphology and climate, and performing separate susceptibility assessments per zone could give more reliable results. To improve the Tier 1 assessment, a geomorphological terrain zoning and landslide typology differentiation are then applied for France. A multivariate landslide susceptibility assessment using additional information on landslide conditioning and triggering factors, together with a historical catalogue of landslides, is proposed for Tier 2 analysis. Access the paper Last Update: 14/10/2014

Spatial prediction of soil properties at European scale using the LUCAS database as an harmonization layer The Land Use and Cover Area frame Statistical survey (LUCAS) is a project, initiated by Eurostat, aimed at the collection of harmonized data about the state of land use/ land cover over the extent of European Union (EU). The survey, initiated in 2006, started with the classification, through photo-interpretation, of 106 georeferenced points placed at the nodes of a 2km grid covering EU. Among these 2
105 were selected for validation and a topsoil survey was conducted at about 10% of these sites. Topsoil sampling locations were selected as to be representative of European landscape using a latin hypercube stratified random sampling, taking into account CORINE land cover 2000, the Shuttle Radar Topography Mission (SRTM) DEM and its derived slope, aspect and curvature. In this study we will discuss how the LUCAS database can be used to map soil properties at continental scale over the geographical extent of Europe. Several soil properties (namely: soil texture, pH, carbon and nitrogen content) were predicted using hybrid approaches like regression kriging. Regression models were fitted using, along other variables, remotely sensed data coming from the MODIS sensor. The high temporal resolution of MODIS allowed detecting changes in the vegetative response due to soil properties, which can then be used to map soil features distribution. We will also discuss the prediction of intrinsically collinear variables like soil texture which required the use of models capable of dealing with multivariate constrained dependent variables like Multivariate Adaptive Regression Splines. Cross validation of the fitted models proved that the LUCAS dataset constitutes a good sample for mapping puropses leading to regression R2 between 0.4 and 0.7 for different soil properties and normalised errors between 4 and 10%. Finally a strategy about how to use LUCAS as an harmonization layer to attune heterogeneous soil information sources is presented and discussed Access the paper Last Update: 14/10/2014

SoilTrEC: A Global Initiative on Critical Zone Research and Integration Global soils provide a variety of ecosystem services. However, currently, global soils are under various threats and in specific cases catastrophic decline in these services is observed across the continents. In this context, , the European Commission published the Thematic Strategy for Soil Protection identifies a specific policy need to address the threats to soil and ecosystem services that it provides. SoilTrEC which stands for Soil Transformations in European Catchments aims to research on soil processes and functions in a CZ context and, to provide recommendations to the stakeholders to develop appropriate policies on soil protection and ecosystem services. This paper presents an overview of the SoilTrEC project, its organizational structure, the methodology and the expected outcomes. Access the paper Last Update: 14/10/2014

Bioremediation trial on aged PCB polluted soils - A bench study in Iceland Polychlorinated biphenyls (PCBs) pose a threat to the envuronment due to their high adsorption capacity to soil organic matter, stability and low reactivity, low water solubility, toxicity and ability to accumulate. With Icelandic soils, research on contamination issies has been very limited, and no data has been reported either on PCB degradation potential or rate. The goals of this research were to assess the bioavailability of aged PBCs in the soils of the old NATO facility in Keflavík, Iceland, and to find the best feasable biostimulation method to decrease the pollution. The effectiveness of different iostimulation additives at different temperatures and oxygen levels were tested. PCB bioavailability to soil fauna was assessed with earthworms (Eisenia foetia). PCBs were biovailable to earthworms, with less chlorinated congeners showing higher bioaccumulation factors than highly chlorinated congeners. Biostimulation with pine needles at 10 degrees under aerobic conditions resulted in nearly 38% degradation of total PCBs after two months incubation. Detection of aerobic PCB degrading bphA gene supports the indigenous capability of the soils to aerobically degrade PCBs. Access the paper Last Update: 14/10/2014

European Scenarios for Exposure of Soil Organisms to Pesticides Standardised exposure scenarios play an important role in European pesticide authorisation procedures (a scenario is a combination of climate, weather and crop data to be used in exposure models). The European Food Safety Authority developed such scenarios for the assessment of exposure of soil organisms to pesticides. Scenarios were needed for both the concentration in total soil and for the concentration in the liquid phase. The goal of the exposure assessment is the 90th percentile of the exposure concentration in the area of agricultural use of a pesticide in each of three regulatory European zones (North, Centre and South). A statistical approach was adopted to find scenarios that are consistent with this exposure goal. Scenario development began with the simulation of the concentration distribution in the entire area of use by means of a simple analytical model. In the subsequent two steps, procedures were applied to account for parameter uncertainty and scenario uncertainty (i.e. the likelihood that a scenario that is derived for one pesticide is not conservative enough for another pesticide). In the final step, the six scenarios were selected by defining their average air temperature, soil organic-matter content and their soil textural class. Organic matter of the selected scenarios decreased in the order North-Centre-South. Because organic matter has a different effect on the concentration in total soil than it has on the concentration in the liquid phase, the concentration in total soil decreased in the order North-Centre-South whereas the concentration in the liquid phase decreased in the opposite order. The concentration differences between the three regulatory zones appeared to be no more than a factor of two. These differences were comparatively small in view of the considerable differences in climate and soil properties between the three zones. Access the paper Last Update: 14/10/2014

Continental-scale assessment of provisioning soil functions in Europe Soil plays a crucial role in terrestrial ecosystems and maintaining life on Earth. The ecosystem services it provides to humans are manifold and complex. In this paper we propose a framework for the evaluation of soil ecosystem services on a continental scale in Europe and make an account of the repertoire of major soil functions and functioning capacities of soils. Soil functions and associated services are discussed in the context of the European soil protection strategy and related to the classification of the Millennium Ecosystem Assessment. In our attempt to characterize soil ecosystem services for the area of the EU in a spatially explicit manner we produced new data on provisioning soil ecosystem services, including productivity and raw material availability. Comparing the potentials for providing soil ecosystem services with individual soil functions in European areas highlight the complexity of decision making dilemma for resources utilization but also underlines the possibilities for resources use optimization and conscious management. Access the paper Last Update: 14/10/2014

An estimate of potential threats levels to soil biodiversity in EU Life within the soil is vital for maintaining life on Earth due to the numerous ecosystem services that it provides. However, there is evidence that pressures on the soil biota are increasing which may undermine some of these ecosystem services. Current levels of belowground biodiversity are relatively poorly known, and so no benchmark exists by which to measure possible future losses of biodiversity. Furthermore, the relative risk that each type of anthropogenic pressures places on the soil biota remains unclear. Potential threats to soil biodiversity were calculated through the use of a composite score produced from data collected from 20 international experts using the budget allocation methodology. This allowed relative weightings to be given to each of the identified pressures for which data were available in the European Soil Data Centre (ESDC). A total of seven different indicators were used for the calculating the composite scores. These data were applied through a model using ArcGIS to produce a spatial analysis of composite pressures on soil biodiversity at the European scale. The model highlights the variation of the composite result of the potential threats to soil biodiversity. A sensitivity analysis demonstrated that the intensity of land exploitation, both in terms of agriculture and use intensity, as well as in terms of land use dynamics, were the main factors applying pressure on soil biodiversity. It is important to note that the model should not be viewed as an estimate of the current level of soil biodiversity in Europe, but as an estimate of pressures that are currently being exerted. The results obtained should be seen as a starting point for further investigation on this relatively unknown issue and demonstrate the utility of this type of model which may be applied to other regions and scales. Access the paper Last Update: 14/10/2014

An energy-biochar chain involving biomass gasification and rice cultivation in Northern Italy The competing demand for food and bioenergy requires new solutions for the agricultural sector, which cannot be spoiled out of its fundamental role of feeding a world population continuously growing. In this context, the production of bioenergy from crop residues and residual biomass may be an interesting solution, since do not affect food production while creating energy. In particular, the gasification technology produces both energy and biochar, which seems to have positive agronomic effects in many experimental fields worldwide, also sequestering carbon in soil. However a full assessment of the energetic performances of gasification plants, as well as their impact in term of greenhouse gases (GHG), needs to be done. In this paper we complete a Life Cycle Analysis (LCA) of an advanced gasification plant located in northwestern Italy, in particular focusing on the GHG balance of the supply chain, including the field distribution of the resulting biochar in a typical paddy rice field. The results indicate that biochar has marginal, but positive effect on rice yield, not affecting soil aggregation in the short-term. Moreover, LCA suggested net emissions ranging between -0.54 and -2.1 t CO2e t-1 biochar depending on the allocation scenario adopted. Access the paper Last Update: 14/10/2014

European perspective of ecosystem services and related policies In this paper we focus on the importance of terrestrial ecosystems and the services they provide. EU policies, contributing to the conservation and maintenance of the ecosystem services in Europe are discussed and their current impacts briefly reviewed in the light of the main challenges that European ecosystems may face in the near future. Access the paper Last Update: 14/10/2014

Estimating the soil organic carbon content for European NUTS2 regions based on LUCAS data collection Soil organic carbon is one of the attributes of the recently developed LUCAS Soil database. The request for data on soil organic carbon and other soil attributes arose from an on-going debate about efforts to establish harmonised datasets for all EU countries with data on soil threats in order to support modelling activities and to display variations in these soil conditions across Europe. In 2009, the European Commission's Joint Research Centre (JRC) conducted the LUCAS soil survey by sampling more than 20,000 points across 23 EU member states. This paper describes the results obtained from analyzing the soil organic carbon data in the LUCAS soil database. The collected data were compared with the modelled data of the European topsoil organic carbon content developed at the JRC. The best fitted comparison was performed at NUTS2 (Nomenclature of Units for Territorial Statistics, European regions) level and demonstrated the underestimation of modelled data in southern Europe, overestimation in the central eastern new member states. There is a good correlation in certain regions for countries such as the United Kingdom, Slovenia, Italy, Ireland, and France. Soil organic carbon content statistics at the national level have been available for some EU countries for the past two decades, but statistics at the regional level are non-existent for almost all countries. Where they do exist the methods used to produce them are not consistent across countries. This article assesses the feasibility of producing comparable estimates of the soil organic carbon content at NUTS2 regional level for the European Union (EU27) and draws a comparison with existing modelled data. In addition to the data analysis, we suggest how the modelled data can be improved in future updates with better calibration of the model. Access the paper Last Update: 14/10/2014

Estimating soil organic carbon in Europe based on data collected through an European network In 2010, the Joint Research Centre of the European Commission (JRC), which is charged with the collection of soil data at European scale and hosts the European Soil Data Centre (ESDAC), conducted a project to collect data on soil organic carbon and soil erosion in Europe using the European Environment Information and Observation Network for soil (EIONET-SOIL). The data submitted by participating countries are their best estimate and represent an official point of view. The technical approach taken allows a country to easily update the records when new data become available. This paper presents the first results obtained from analyzing the soil organic carbon data submitted to EIONET-SOIL. The collected data were compared with the modelled data of the European topsoil organic carbon content developed at the JRC. The modelled data follow the general pattern of the geographic distribution of collected data, but show higher values compared to the EIONET-SOIL data. The important role of soil organic carbon (SOC) as an indicator of soil quality underlines the need for using common methods of sampling, analysing and reporting soil organic carbon to provide a standard product, such as EIONET-SOIL. Access the paper Last Update: 14/10/2014

European Soil Data Centre: Response to European policy support and public data requirements Panagos P., Van Liedekerke M., Jones A., Montanarella L. (2012) European Soil Data Centre: response to European policy support and public data requirements Land Use Policy, 29 (2), pp. 329-338. In the context of the European Union's Soil Thematic Strategy, policy makers require easy access to soil data and information of various types and scales to assess the state of soils at European level. To satisfy this need, the European Commission and the European Environment Agency (EEA) decided to establish the European Soil Data Centre (ESDAC), located at the European Commission's Joint Research Centre. The ESDAC is one of ten environmental data centres that have been established during the last 4 years in support of policy development, implementation and monitoring by the European Commission's Directorate General for Environment. The ESDAC, located at http://esdac.jrc.ec.europa.eu, has become the focal point for soil data and information at European Union level by hosting a series of soil products and web-based tools that allow access to the data. The ESDAC acts as the primary data contact point for the Commission and EEA to fulfill their information needs. The establishment and the evaluation of harmonised databases should facilitate improved soil protection measures. Access the paper: http://www.sciencedirect.com/science/article/pii/S0264837711000718 Last Update: 02/09/2013

Metal toxicity and biodiversity in serpentine soils: Application of bioassay tests and microarthropod index Giovanna Visioli, Cristina Menta, Ciro Gardi, Federica Delia Conti Eco-toxicological or bioassays tests have intensively been discussed as tools for the evaluation of soil quality. Tests with soil organisms, including microarthropods and plants, allow direct estimates of important soil characteristics and functions. In this study we compared the results obtained by two in vitro standard bioassays following ISO or OECD guidelines: i) the short term-chronic phytotoxicity germination and root elongation test using three different plant species Lepidium sativum L. (Brassicaceae), Cucumis sativus L. (Cucurbitaceae) and Medicago sativa L. (Fabaceae) ii) the inhibition of reproduction of Folsomia candida (Collembola) by soil pollutants (ISO 11267:1999) to investigate the toxicity of a serpentine soil present in the Italian Apennines, rich in heavy metals such as Ni, Cr, Co. In addition, microarthropod communities were been characterized to evaluate the effects of metal contents on the soil fauna in natural conditions. Abundances, Acari/Collembola ratio, biodiversity indices and QBS-ar index were calculated. Our results demonstrate that the two in vitro tests discriminate differences correlated with metal and organic matter contents in four sub-sites within the serpentinite. Soil fauna characterization, not previously performed on serpentine soils, revealed differences in peculiar groups of microarthropods among the four sub-sites: microarthropod community was found to be rich and well diversified in the sub-site characterized by the less metal content and the higher organic matter content and vegetation. Access the paper: http://www.sciencedirect.com/science/article/pii/S0045653512012222 Last Update: 02/09/2013

Combining satellite derived phenology with climate data for climate change impact assessment Ivits E., Cherlet M., Toth G., Sommer S., Mehl W., Vogt J., Micale F. Combining satellite derived phenology with climate data for climate change impact assessment (2012) Global and Planetary Change, 88-89 , pp. 85-97. The projected influence of climate change on the timing and volume of phytomass production is expected to affect a number of ecosystem services. In order to develop coherent and locally effective adaptation and mitigation strategies, spatially explicit information on the observed changes is needed. Long-term variations of the vegetative growing season in different environmental zones of Europe for 1982-2006 have been derived by analysing time series of GIMMS NDVI data. The associations of phenologically homogenous spatial clusters to time series of temperature and precipitation data were evaluated. North-East Europe showed a trend to an earlier and longer growing season, particularly in the northern Baltic areas. Despite the earlier greening up large areas of Europe exhibited rather stable season length indicating the shift of the entire growing season to an earlier period. The northern Mediterranean experience a growing season shift towards later dates while some agglomerations of earlier and shorter growing season were also seen. The correlation of phenological time series with climate data shows a cause-effect relationship over the semi natural areas consistent with results in literature. Managed ecosystems however appear to have heterogeneous change pattern with less or no correlation to climatic trends. Over these areas climatic trends seemed to overlap in a complex manner with more pronounced effects of local biophysical conditions and/or land management practices. Our results underline the importance of satellite derived phenological observations to explain local nonconformities to climatic trends for climate change impact assessment. Access the paper: http://www.sciencedirect.com/science/article/pii/S0921818112000562 Last Update: 02/09/2013

Prediction of soil organic carbon for different levels of soil moisture using Vis-NIR spectroscopy Nocita, M., Stevens, A., Noon, C., Van Wesemael, B. (2012) Prediction of soil organic carbon for different levels of soil moisture using Vis-NIR spectroscopy. Geoderma, 199: pp. 37-42. Visible and near infrared diffuse reflectance spectroscopy has produced promising results to infer soil organic carbon (SOC) content in the laboratory. However, using soil spectra measured directly in the field or with airborne imaging spectrometer remains challenging due to uncontrolled variations in surface soil properties, like vegetation cover, moisture and roughness. In particular, soil moisture may dramatically degrade predictions of SOC content when using an empirical/statistical approach. This study aims to quantify the effect of soil moisture on the accuracy of SOC predictions, and to propose a method to determine SOC content for moist samples with unknown moisture content. Soil samples (n=107) were collected along a transect, in the Grand-Duchy of Luxembourg. The soil samples were air-dried for 7 days, moistened in steps of 0.05 g water g soil-1 until saturation, and scanned in the laboratory with a visible and near infrared spectrometer. We computed the normalized soil moisture index (NSMI) to estimate the soil moisture content of the samples (R2 = 0.74), and used it to spectrally classify the samples according to their moisture content. SOC content was predicted using separate partial least square regressions developed on groups of samples with similar NSMI values. The root mean square error of prediction (RMSE) after validation was below 5 g C kg-1, with a ratio of prediction to deviation (RPD) greater than 2. These results were better than the ones obtained with separate spectroscopic models with a-priori knowledge of soil moisture. Hence, the NSMI might be used as a proxy of moisture content to improve SOC content prediction for spectral data acquired outside the laboratory as the method is simple and does not need other data than a simple band ratio of the spectra. Access the paper: http://www.sciencedirect.com/science/article/pii/S001670611200290X Last Update: 02/09/2013

Soil Information in Support of Policy Making and Awareness Raising Bouma J., Broll G., Crane T.A., Dewitte O., Gardi C., Schulte R.P.O., Towers W. Soil information in support of policy making and awareness raising (2012) Current Opinion in Environmental Sustainability, 4 (5) , pp. 552-558. Soils play an important role in defining sustainable land-use options when facing major global environmental challenges such as food security, climate change, fresh water scarcity and biodiversity loss. Facing these problems, the 2006 EU Thematic Strategy for Soil Protection (TSSP), provides an important focal point for soil research and awareness raising. Unfortunately, the TSSP has not yet been followed up with a legally binding Framework Directive mainly because of political barriers. Two approaches are discussed to overcome these barriers: First, we explore innovative ways to present soils and raise soil awareness. Soil information in terms of atlases, associated databases and interpretations, focusing on major environmental problems, is presented by the EU Joint Research Center (JRC) for Africa and South America using modern digital techniques and, particularly, a user-oriented approach. This contrasts with the traditional approach which is more soil-centered. Soil science has not yet effectively tapped the genuine and basic affinity of mankind with their soils. Therefore, more attention to local knowledge and management of soils is needed. Creating more awareness, by sharing experiences with various citizen groups, is also an effective mechanism to mobilize the political arena as is demonstrated by some German examples. Second, we show specific real-world examples as to the possible positive and innovative impact of the TSSP. An example is presented of Functional Soil Planning, based on maximizing soil functions at national and international level by customizing soil management at local level, balancing 'supply' and 'demand' by defining tradeoffs between conflicting functions. Finally, a case study for Scotland is presented dealing with EU policies for so-called: "Less Favoured Areas (LFA)". Access the paper: http://dx.doi.org/10.1016/j.cosust.2012.07.001 Last Update: 02/09/2013