摘要
运用GIS和SPSS技术 ,对河南省长葛市主要农业土壤肥力进行综合评价。首先选取与土壤肥力密切相关的 7个因素 ,建立综合评价指标体系 ,结合长葛市土壤的理化性质特点 ,确定各指标的评价指数。并根据各个因素对土壤肥力影响的大小不同 ,建立判断矩阵 ,确定其权重。然后 ,对长葛市主要的 9种农业土壤的肥力进行了综合评价 ,评价结果表明 ,两合土、褐土化两合土和潮黄土为一等地 ,砂壤土、潮垆土、立黄土为二等地 ,褐土化砂土、盐化潮土、灰质黑老土为三等地。并根据评价结果 ,提出了土壤合理利用的建议。
The main agricultural soils in Changge city were comprehensively evaluated by using the technology of GIS and SPSS.First,7 factors which strongly effect the fertility of soils were chosen to establish a system of comprehensive evaluation,then,a matrix was set up to determine the weight of these 7 factors based on their effects on soil fertility. Nine kinds of soil in Changge were divided into three groups according to their fertility. At last,some sugguestion were put forward for the utilization of these soils on base of the comprehensive evaluation
出处
《河南农业科学》
CSCD
北大核心
2003年第5期34-37,共4页
Journal of Henan Agricultural Sciences
基金
许昌市 2 0 0 1年科技发展攻关项目 (0 310 0 2 3)
