摘要
坝地是黄土高原地区群众的"保命田",其土壤肥力的高低很大程度上直接影响着黄土高原地区群众的粮食自给能力。以山西省忻州、吕梁、晋南(临汾、运城)4市16县的23个坝地为研究对象,通过野外实地考察、选点取样、评价指标实验室测定、综合评价方法筛选及土壤肥力综合指数计算等一系列的相关分析和研究,建立了黄土高原坝地土壤肥力评价指标体系,并对所选的23个坝地进行了肥力评价。结果表明:忻州、吕梁、晋南(临汾、运城)各市坝地的土壤肥力综合指数(IFI)分别为0.36,0.35和0.48,忻州和吕梁的坝地土壤肥力水平相近,属于中等水平,晋南(临汾、运城)的较高,属于高水平,全省坝地土壤的IFI由北向南递增。
Dam land is the ＂life insurance field＂ on the Loess Plateau region;so,to large extent,the soil fertility of dam land has a direct impact on the food self-sufficiency of the Loess Plateau.In this paper,based on the 23 dam lands in Xinzhou,Luliang and Jinnan （Linfen,Yuncheng） district,soil fertility evaluation index system was established for the dam land and fertility evaluation was underway.The results showed that： the soil fertility index （IFI） of dam land in Xinzhou,Luliang were 0.36,0.35,respectively,the soil fertility level of Xinzhou and Luliang area were equal,and belonged to middle level,while IFI of Jinnan （Linfen,Yuncheng） was higher.The soil fertility index （IFI） of dam land increased progressively from north to south.
出处
《水土保持学报》
CSCD
北大核心
2010年第5期262-265,271,共5页
Journal of Soil and Water Conservation
基金
山西省水利厅资助项目(晋坝科070301)
关键词
淤地坝
土壤肥力
综合评价
dam land
soil fertility
comprehensive evaluation
