ManPrAs is a tool for Agricultural Management Practices Assessment set up within DESERTLINKS project. The objective is to suggest a method, based on the indicators list in DIS4ME, to assess the sustainability of agricultural practices through its soil conservation index (SCI) and economic results (Gross Margin-GM), and to simulate the impact on soil degradation, farm profitability and socio-economic features of alternative crops in a specific context. The tool is strongly user-orientated, and allows assessment of the environmental and economic aspects of agricultural practice, giving a powerful simulation tool to farmers and stakeholders involved in land management.