梯田水资源网络化高效利用研究示范

Research and demonstration of efficient use of terraced water resources network

在对陇东地区梯田系统雨洪资源可利用潜力评价的基础之上,建立了2处示范点,为提高梯田农业产出、高效利用水资源、解决区域供用水矛盾提供实践依据。梯田系统路网+田面集水高效补灌技术模式示范点,通过收集、利用梯田路网雨水,根据主要作物的生长需水特征,对不同类型节水灌溉技术和补灌制度进行示范;梯田系统路网+人工集流高效补灌技术模式示范点果园灌溉面积为4.67 ha。两项技术模式的雨水收集效率达到70%~80%,配套布设节水灌溉措施后,雨水利用率提高了5%,用于灌溉后可使粮食产量增加40%,产值提升40%,取得了较为显著的经济、社会、生态效益。

Based on the evaluation of the available potential of rain water resources in the terrace system of Longdong area,two demonstration sites were established to provide practical basis for improving agricultural output of terraced fields,using water resources efficiently,and solving regional water supply conflicts.By collecting and utilizing the terraced road network rainwater,according to the growth demand of the main crops characteristics,different types of water-saving irrigation technology were investigated at the demonstration sites of the terrace system road network+field surface water-collecting high-efficiency replenishment technology model.An orchard with irrigation area of 4.67 ha was applied in the demonstration of terraced system road network+artificial collecting efficient irrigation technology model.The rainwater collection efficiency of the two technical models reached 70%~80%.After the deployment of water-saving irrigation measures,the rainwater utilization rate increased by 5%.After irrigation,the grain output could be increased by 40%and the output value increased by 40%,and achieved significant economic,social and ecological benefits.