黄土高原小杂粮降水生产潜力开发和增进的技术途径  

Technical Approaches for Exploiting and Enhancing the Rainfall Potentials of Minor Crops in the Loess Plateau

作　　者：杜虎平[1] 

机构地区：[1]榆林学院植物与环境科学系,陕西榆林719000

出　　处：《中国农学通报》2005年第12期428-431,共4页Chinese Agricultural Science Bulletin

基　　金：农业部保护性耕作创新行动计划项目"小杂粮保护性耕作技术体系研究"。

摘　　要：在黄土高原,水资源已成为对粮食生产的主要制约因素。现阶段高原旱作农区农田降水利用 效率仅为35％左右,研究表明在较为合理的生产条件用水效率可以达到70％-80％。在此,通过从提 高种群的内在生产力、建设基本农田控制坡耕地水分的径流输出、抑制农田水分的无谓损耗、实施农 田水分的空间富集、确立与降水分布相吻合的种植结构几方面阐述黄土高原小杂粮作物降水生产潜 力开发和增进的技术途径。Water resources have become the limiting factor of grain production in the loess plateau. Currenfly, the rainfall use efficiency only amounts to about 35% in the farmland of the loess plateau, but researches indicate that the rainfall use efficiency can reach as high as 70%-80%. The paper expatiate up the technical approaches for exploiting and enhancing the Rainfall Potentials of Minor Crops in the Loess Plateau in accordance with improving internal community productivity, controlling the runoff discharge from slope land by farmland construction, inhibiting non-effective consumption of farmland water, enhancing the spatial enrichment of farmland water, and establishing the planting structure matching with rainfall.

关 键 词：黄土高原 小杂粮 降水生产潜力 技术途径 

分 类 号：F326.11[经济管理—产业经济] TP399[自动化与计算机技术—计算机应用技术]