水肥耦合与旱地农业持续发展  

Water and fertilizer coupling and dryland agricultural sustainable development

作　　者：文宏达[1] 刘玉柱[1] 李晓丽 李淑文[1] 王殿武[1] 

机构地区：[1]河北农业大学资环学院,河北保定071001

出　　处：《土壤与环境》2002年第3期315-318,共4页Soil and Environmental Sciences

基　　金：国家"九五"科技攻关项目(96-04-004-03)

摘　　要：水资源不足及人口增长给农业生产增加了很大压力,寻求开发旱农区相对丰富的土地资源成为满足需求增长的重要方法。文章讨论了旱地农业持续发展的限制因子、旱地水肥关系、水肥耦合效应机理以及水肥耦合对旱地农业持续发展的意义。The insufficient water resource and growing population has added very pressure to agricultural production. Seeking to develop the relatively abundant land resource in the region of dryland agriculture becomes the important method to satisfy the increasing demand. This paper has discussed the limited factors of sustainable development of dryland agriculture, relationship between water and fertilizer in dryland, the effect mechanism of water and fertilizer coupling and the meaning of water and fertilizer coupling for dryland agriculture sustainable development.

关 键 词：持续发展 水肥耦合 旱地农业 水分利用效率 

分 类 号：S342.1[农业科学—作物栽培与耕作技术]