摘要
干旱缺水是提高干热河谷旱坡地粮食产量和提高植树造林成活率的主要制约因素。为了充分利用有限的降水 ,进行了旱坡地“地下地膜隔水墙”节水农业 (节水造林 )技术及果树节水灌溉栽培试验。结果表明 ,旱坡地粮食增产 6.5%～ 2 0 .2 % ,造林成活率提高 2 0 %～ 30 % ,果树栽培节水率 60 %～ 80 % ,且生长良好。
Drought and water shortage is the main restrictive factor to heighten grain output of dry slope land and the afforestation survival rate in Yuanmou dry hot valley. In order to make best use of the limited rainfall, we carried out experiment on water saving agricultural technique (water saving afforestation technique) with “underground plastic sheet wall” and water saving irrigation of fruit tree planting. The experimental result indicated that the grain output increased 6.5%～20.2% of the dry slope land, afforestation survival rate heightened and the water saving rate of fruit tree planting reached 60%～80%,growing well.
出处
《水土保持学报》
CSCD
北大核心
2000年第4期69-73,共5页
Journal of Soil and Water Conservation
基金
国家"九五"科技攻关资助项目!"云南元谋干热河谷退化生态系统综合整治与区域可持续发展试验示范研究"(编号 :96- 92 0- 13- 0 2 - 0
关键词
元谋干热河
节水农业
节水林业
地下地膜节水墙
推广
Yuanmou dry hot valley
water saving agriculture and forestry technique
underground plastic sheet wall
