摘要
The land quality geochemical evaluation database was mainly based on soil geochemical surveys.During its construction process,geochemical survey data involving atmospheric dry(wet)sediments,irrigation water,fertilizers and crops was simultaneously collected,analyzed and compiled into result maps using MAPGIS.ACCESS was used to manage standardized result data to establish an evaluation database.The database included a basic spatial database involving regional geography,topography,soil type and land use,a spatial evaluation database centered on the sampling layout of the work areas of soil,irrigation water,crops and other media,the distribution and changes of soil chemical elements,the classification of soil pollution and the classification of soil element environment and nutrients,and an evaluation database of various result maps such as land planning map,characteristic agricultural product planting plan suggestion map and fertilization suggestion map.The database realized the scientific and effective management of the samples and corresponding numerous laboratory analysis data,and provides basic information for the geochemical survey and evaluation of the land quality in the evaluation areas and the overall comprehensive research,and an important basis for promoting the adjustment of agricultural economic planning,the development of modern green agriculture and the development and utilization of high-quality characteristic land resources.
基金
Supported Sub-project of"Land Quality Geochemical Survey of Beijing-Tianjin-Hebei-Lugeng Area"Project of Tianjin Geological Survey Center of China Geological Survey(DD20160325-03).
