A Discussion on the Method for Land Quality Geochemical Assessment Based on MapGIS Spatial Analysis Module
详细信息
- 责任者：Zhang Danqing (College of Earth Sciences ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Liu Yingping
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2012
- 卷期：34(2)
- 关键词：土地质量 ; land quality ; 土壤地球化学 ; soil geochemistry
- 页码：p.217-223
- 图表：5 illus., 1 table, 11 refs.
- 分类号：0600
- 出版序号：20130106
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
Using agricultural geology survey data, this paper discusses how to use the MapGIS spatial analysis module for the land quality geochemistry assessment. Taking Land consolidation areas of Tuojiang Village as an example, the authors select soil nutrient index, soil environmental index, water and atmospheric environment index, large crop safety index for major evaluation indicators .Using digital terrain model of MapGIS, the authors draws maps in single factor and single index classification. The authors use spatial analysis module of area-toarea to analysis in multi-index and multi-factors. Finally the map of geochemical gradation and classification of land quality has been drawn.
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