干旱区盐渍化土地三系统治理技术研究  

Research on ecology of three systems for transforming saline land

作　　者：杨自辉[1] 王继和[1] 纪永福[1] 胡明贵[1] 刘虎俊[1] 

机构地区：[1]甘肃省治沙研究所,甘肃武威733000

出　　处：《干旱地区农业研究》2001年第4期92-96,共5页Agricultural Research in the Arid Areas

基　　金：国家"九五"科技攻关项目 ( 96-0 1 7-0 1 -0 1 )的部分内容

摘　　要：运用工程改良、生物种植改良、养殖业发展增加土壤有机质的“三系统”治理盐渍化土地技术把“食物链 -生产链 -产业链”有机地连成一条主线 ,实现了农林牧互促相长的盐碱地治理利用可持续发展的目的。在干旱区临泽县小泉子盐渍化土地中实施 4a来 ,使土壤含盐量降低 40 .6%～ 76.3% ,土壤有机质增加 2 9.2 %左右 ,土壤孔隙度提高 4.2 8% ,全氮增加 1 1 .7% ;示范区粮食产量增加了 69.1 3% ,示范农户经济收入增加 2 3.37%。The three systems, which are engineering measures, planting crops and increasing organic manure by improving livestock, link organically a main line of food chain-production chain-industry chain. It achieved the goal of sustainable development in saline alkali land use and bring about a great advance each other in the three systems. The project has been applied in saline alkali land of Xiaoquanzi of Linze county in arid areas for four years, with the salinity of soil reducing by 40.6%~76.3%, the organic matter of soil increasing by 29.2%, the porosity of soil increasing by 4.08%, the gross N of soil increasing by 11.7%, the crop yield increasing by 69.13% in demonstration area, the income of farmer increasing by 23.37% in demonstration area.

关 键 词：盐渍化土地 干旱区 工程措施 生物措施 养殖业 综合治理 

分 类 号：S156.4[农业科学—土壤学]