黑龙江省松嫩平原南部土地质量地球化学评价

摘要

以黑龙江省松嫩平原南部8．15万km^2范围表层土壤为研究对象，利用层次分析法、地统计学和模糊评价法从土地的肥力质量和环境质量进行评价，并利用地理信息系统（GIS）技术进一步分析研究区内地球化学质量的空间分布规律和变异性．研究结果表明，黑龙江省松嫩平原南部综合地球化学质量较好，土地的环境质量很高，土质非常清洁、安全．同时，土地质量具有明显的空间分布规律性，呈现高低质量区间隔、南北纵向分布特征．%In this paper, 81. 5 thousands surface soil square of the southern Songnen Plain in Heilongjiang province are collected as the study area, land geochemical quality is evaluated from two aspect of soil fertility quality and environmental quality by using methods of Analytic Hierarchy Process （AHP）, Geo- statistics and Fuzzy Evaluation, and further the spatial distribution regularity of land geochemical quality in the study area is analysed by Global Information System. （GIS）. The results show that land geochemical quality of the Southern Songnen Plain in Heilongjiang province is fairly good, land environmental quality is high, and soil is clean as well safe. At same time, land quality has special distribution regularity obviously, and takes on characteristics that one is high and low quality areas interval, the other is the longitudinal distribution from north to south.