摘要
应用扬州市土壤肥料站开发的县域耕地资源管理信息系统,采用土地利用现状图和土壤图叠加的方法确定27 771个评价单元,选取气象、立地条件、耕层理化性状、耕层养分状况及水分管理5个层次共16个指标作为评价对象,对恩施州耕地地力进行综合评价。结果表明,恩施州耕地地力分为5个等级,一等地占4.16%,二等地占12.48%,三等地占30.01%,四等地占34.25%,五等地占19.09%。
Management information system of county land resources developed by Yangzhou soil and fertilizer station, the method of superimposing present landuse map and soil map was used to determine 27 771 evaluation units. 5 levels and a total of 16 indexes as evaluation object, including meteorology, site conditions, physical and chemical properties of top layer, the condition of topsoil nutrients and water management were selected to evaluate the soil fertility of arable land in Enshi prefecture. Comprehensive evaluation of farmland productivity was realized. The resuhs showed that the farmland productivity was divided into 5 levels ranked from the first grade to fifth grade, accounting for 4.16%, 12.48%, 30.01%, 34.25% and 19.09%, respectively.
出处
《湖北农业科学》
2015年第6期1324-1327,共4页
Hubei Agricultural Sciences
基金
国家测土配方施肥补贴资金项目(财农[2009]211号)
关键词
耕地
地力评价
恩施州
cultivated land
productivity evaluation
Enshi prefecture
