SIEUSOIL will design, implement and test a shared China-EU Web Observatory platform that will provide Open Linked Data to monitor status and threats of soil and assist in decision making for sustainable support of agro-ecosystem functions, in view of the projected climate change. The Observatory platform will through customizable modules support the wise management of soil at field level and will provide showcase of good practices on soil management both for EU and China. The final target will be to support sustainable management of soil, increase land productivity sustainably, reduce crop yield variability across time and space, and support the policy formulation process. Innovative practices and tools will be tested in SIEUSOIL and their impact will be assessed for improved soil fertility and land suitability.