Land Resources

Global assessment

LADA Global map of Land use systems

The global component of LADA provides a baseline assessment of global trends in land degradation using a range of indicators collected by processing satellite data and existing global databases. The main indicators are:

•Net Primary Productivity (NPP)
•Rainfall Use Efficiency (RUE)
•Aridity Index
•Rainfall variability
•Erosion risk

These indicators are then interpreted on the basis of a Global Land Use Systems map , which provides an overview of the main factors due to human interventions that affect the development of land degradation in a given area.

These are:

•Land cover
•Urban and protected areas
•Livestock pressure
•Irrigation Crops
•Temperature and thermal regime
•Rainfall regime
•Dominant soils and terrain slope
•Population density

Land Use Systems (LUS) mapping - Land use is considered the major driving force of land degradation. LUS mapping analyses natural resources, land cover and socio-economic data using a combination of simple spatial modelling and expert knowledge. The LUS-map units also include other sets of biophysical and socio-economic information of relevance to land resources and ecosystems degradation that provide a cartographic basis for national assessments.