CAJ | 학술논문

以滇西南勐永蔗区185份土壤样本为研究对象，采用主成分分析法、隶属度函数和模糊数学法，对蔗区土壤肥力进行综合评价。结果表明：（1）勐永蔗区土壤pH值和有机质、全钾、速效钾、有效磷含量适宜，全氮含量偏高，全磷、碱解氮含量偏低；（2）pH和有机质、全氮、全磷、全钾、碱解氮、速效钾含量的空间变异较小，有效磷含量的空间变异较大；（3）勐永蔗区土壤肥力平均综合指标值0.53，中等水平及以上的占92.3％，说明该蔗区土壤肥力状况总体良好。
이전서남맹영자구185빈토양양본위연구대상，채용주성분분석법、대속도함수화모호수학법，대자구토양비력진행종합평개。결과표명：（1）맹영자구토양pH치화유궤질、전갑、속효갑、유효린함량괄의，전담함량편고，전린、감해담함량편저；（2）pH화유궤질、전담、전린、전갑、감해담、속효갑함량적공간변이교소，유효린함량적공간변이교대；（3）맹영자구토양비력평균종합지표치0.53，중등수평급이상적점92.3％，설명해자구토양비력상황총체량호。
Integrated evaluation of soil fertility of sugarcane area was carry out with 1 85 soil samples from Mengyong in southwest Yunnan by principal component analysis,subordinating degree function and fuzzy mathematics. The results showed that (1 )The pH and content of organic matter,total K,rapidly available K and available P were appropriate,while total N content was higher,and content of total P and available N were lower in Mengyong sugarcane area. (2)The spatial variability of pH,organic matter,total N,total P,total K,available N and rapidly available K was little,while that of availa-ble P was greater. (3)Average integrated index of soil fertility in Mengyong sugarcane area was 0. 53,in which samples with imiddle or high level accounted for 92. 3%,which showed that the soil fertility situation in Mengyong sugarcane area was good as a whole.