Abstract:Based on soil geochemical investigation, analysis data of atmospheric dry (wet) sediment, irrigation water, fertilizer, crops and other media, by using MapGIS management to make the achievement map, using access management to standardize the achievement data, using the "Data entry subsystem of geochemical survey and evaluation of land quality" issued by the development research center of China Geological Survey Bureau to digitize datas, and establishes the evaluation database. The contents of the database include basic spatial databases, such as regional geography and geology, topography and geomorphology, soil types and land use; spatial evaluation database, such as sampling layout, single element geochemical map, soil element classification map and comprehensive grade map of atmospheric environment; irrigation water environment, soil quality and land quality as the core of sampling medium; various achievement maps, including land planning map, planting plan suggestion map and fertilization suggestion map of agricultural products. The database can realize the scientific and effective management of the samples and the corresponding numerous laboratory analysis data, facilitates the unified storage, analysis and use of the data, provide the basic data for the geochemical investigation and evaluation of the land quality in the evaluation area and the overall comprehensive research, provide the basis for promoting the adjustment of the agricultural economic planning, the development of modern green agriculture and the development and utilization of land resources with high quality.
