黄土高原北部农牧交错带提高庭院集雨经济转化利用效率的技术途径分析

A Study on Technical Approaches in Improving Water Use Efficiency of Courtyard Rain-Collection in Ecotone of North Loess Plateau

以位于黄土高原北部农牧交错带的内蒙古自治区的准格尔旗实验区为例,分析了典型庭院中提高收集雨水经济转化利用效率的途径。以庭院经济种植业系统为研究对象,提出了雨水经济转化效率的数学表达公式B=R×C1×C2×C3,依据试验数据,确定了C1、C2、C3各个参数的数值,最后计算出雨水的经济转化效率B分别为:蔬菜9.61元/m3,西瓜3.44元/m3,果树15.93元/m3,三种作物的平均转化效率为9.66元/m3。果树的转化效率最大,其次为蔬菜,再次是西瓜。针对每个参数的可变化范围提出了提高雨水经济转化效率的途径,对西北干旱半干旱区的生态、经济和社会发展具有重要意义。

Based on the experiences of the Zhungeer Banner in the Inner Mongolian Autonomous Region, the technical approaches in increasing water transform efficiency of courtyard rain-collection in the ecotone of the North Loess Plateau were studied. For the cropping systems of the courtyard economy, the formula of water transform efficiency was put forward： B=R×C1 × C2 × C3. According to the data of experiments, the values of C1 ,C2 ,C3 were determined. The rain transform efficiency B was 9. 61 Yuan/m^3 for vegetables, 3.44 Yuan/m3 for watermelon and 15. 93 Yuan/m3 for fruits. The average B of three crops was 9.66 Yuan/m^3. The rain transform efficiency for fruits was the highest and the lowest for watermelon among the three crops. The technical approaches in improving water transform efficiency were put forward.