摘要
对宁夏南部山区彭阳县“集雨补灌旱作节水农业技术体系集成综合示范区”进行降雨、土壤水分、雨水高效利用模式实地监测及农作物产量和雨水利用情况调查分析,表明:示范区的5种雨水高效利用模式是:(1)小流域集水,水库、塘坝拦蓄;(2)坡面集水+退耕还林还草雨水叠加利用;(3)道路路面集水利用;(4)场院、屋面集水,庭园经济利用;(5)土壤扩蓄增容、水资源就地拦蓄利用。它们对于防止或减少水土流失、雨水的合理分配及利用有着积极的作用;水库、塘坝及水窖储存的雨水补灌缓解了作物需水期水分不足的问题,雨水的就地拦蓄及叠加利用促进了作物及林草的生长,提高了雨水的经济和生态功能。
In “the comprehensive demonstration area of rainwater harvesting and complementing water-saving irrigation” in Pengyang County of southern Ningxia, the rainfall, soil moisture, models of rainwater harvesting, and yield and water use of crops were investigated and analyzed. The results showed that the five integrated models of rainwater harvesting and utilization were effective in preventing or reducing of soil and water erosion, and in rational distribution and use of rainwater. Water in reservoirs, pools, dams and cellars was used for complementing irrigation that was an effective way to relieve water deficiency during critical period of crops. The handy use and overlapped use of rainwater could promote the growth of crops, trees and grasses, and improve the economic and ecological function of rainwater.
出处
《干旱地区农业研究》
CSCD
北大核心
2005年第5期138-142,158,共6页
Agricultural Research in the Arid Areas
基金
国家"863"项目(2002AA6Z3301)
国家"十五"重大科技攻关项目"半干旱退化山区生态农业建设技术与示范"
关键词
雨水资源
利用模式
宁南山区
rainwater resources
efficient use model
southern Ningxia
