Prediction of the spatial distribution of soil properties based on environmental correlation and geostatistics

The spatial variability of soil properties is the basis of decision-making in agricultural management and environmental protection,and it is also of great significance in scientific decision-making to utilize limited sample data to obtain detailed spatial information of soil properties.

Analysis and forecast on the spatial distribution and dynamics of soil properties is an important element of sustainable land management.

Affected by the nature and human factors, soil property is non- homogeneous in the spatial distribution, that is spatial variability of soil property.

Soil property is the result of combined action of nature and human factors.

Spatial variability of soil property is one of the main research directions in soil.

Establishing method for soil database of SWAT model;

Designing and Applying of a Soil Database System of Nanchong District Based on GIS;

Establishment and Its Applications of the 1:200,000 Soil Database in Jiangsu Province;

The interpolation method was used to make the soil grain size conversion,and the soil water characteristics were estimated by the SPAW program to build up soil property database.