安徽省含山县水稻土资源质量评价

在含山县水稻土资源质量评价中，选用２６个典型土种，１３个变量（评价项目），先对土种理化性质进行数字化处理，采用逐步回归分析法筛选出影响水稻生产力的主导因子并建立回归方程，对入选因子的回归系数进行标准化处理后求得其松重以及土种各因子的具体评价指数，最后进上步入选因子遥回归系数进行标准化处理后求得其权重以及土种各因子的平价指数，最后进上步对所有土种进行综合评介并进行归类分等，评价的结果与实际完全一致；

THE ASSESSMENT OF THE QUALITY OF THE PADDY SOIL RESOURCE IN HANSHAN COUNTY OF ANHUI PROVINCE

The writers choose 26 typical soil species, 13 variables (assessment items), and digitize the physical and chemical properties of the soil species. The main factors affecting the productive forces are selected and the regression equation is given out by progressive regression analysis. The regression coefficients of the selected factors are standardized to obtain their weighs and specific assessment indexes. Then the writers assess all the soil species comprehensively and classify them into three grades. The result tallies with the actual situation. By means of the atempt to assess the quality of the paddy soil resource in Hanshan County, the writers probe primarily into the scientific method of assessment, put forward some present problems. The paper supply a scientific basis for making rational use of the paddy soil resource in Hanshan County.