水土保持研究2011，Vol.18Issue(3)：131-136,封2,7.
河南省烤烟种植区土壤综合肥力评价
Studies on Comprehensive Evaluation of Soil Fertility in He'nan Tobacco Planting Regions Based on Fuzzy Mathematics and Principal Component Analysis
摘要
Abstract
Based on analysis of the physical and chemical properties of soil samples collected from He' nan tobacco planting regions, the index system of soil fertility suitability of tobacco was established. S-or parabolatype dependence functions were developed according to their effects on tobacco crop and the function value was also calculated. AHP was applied to judge the weight of each evaluation factor. Then the integrated in dex values for every evaluation unit were obtained. Based on all the above, the fertility map of He'nan tobacco planting regions was drawn with MAPGIS. It is found that the whole Xinyang city and the west of Nanyang are the highly suitable regions, which is 1.18×104 hm2, accounting for 13.69％ of He'nan tobacco planting regions. It is due to that there is rich in organic matter and total N, and there is suitable pH value in the soils in this regions. There are suitable areas for planting tobacco crops in Zhumadian, Xuchang, Pingdingshan and Luoyang city, because there are medium Cl contents, and there is rich in available P and available K in these regions, which is 3.03×104 hm2, accounting for 35.01％ of He'nan tobacco planting regions. There are less suitable regions in the northern and eastern parts of the investigated regions because of too higher contents of Cl- and pH, and too lower contents of available P, which is 4.24×104 hm2 , accounting for 48.86％ of He'nan tobacco planting regions.关键词
GIS/烤烟/评价因子/权重/土壤综合肥力Key words
GIS/ tobacco/ evaluation factor/ weight/ soil fertility suitability分类
农业科技引用本文复制引用
陈海生,魏跃伟,刘国顺,陈伟强..河南省烤烟种植区土壤综合肥力评价[J].水土保持研究,2011,18(3):131-136,封2,7.基金项目
国家烟草专卖局重点资助项目(110200401021) （110200401021）
