摘要
小流域的农业生产多以雨养农业为主 ,其集水效率是雨水集蓄利用工程的关键。本文首先讨论了径流系数法 ,其次以山东安口小流域为例 ,通过野外观测数据计算出其上的径流系数。安口流域径流系数较高 ,平均为 0 .4 6 ,实例检验表明径流系数法对集水量进行估算具有较高的准确性 ,因而在类似于安口流域的这类区域 ,利用 (天然 )
The efficiency of rainwater harvesting utilization plays an important role in a small rain-fed agricultural valley. This paper discussed the runoff coefficient method firstly, then with Ankou Valley in Shandong Province as a study area, calculated out the runoff coefficient based on the data observed on the spot. The result showed that the runoff coefficient in Ankou Valley is 0.46, higher than normal, and the veracity of using the runoff coefficient is also higher. So in the Valley such as Ankou, it is much more advantage to develop rain-fed agriculture using the natural valley runoff area to collect rainwater.
出处
《山东农业大学学报（自然科学版）》
CSCD
北大核心
2004年第3期379-382,共4页
Journal of Shandong Agricultural University：Natural Science Edition
基金
山东省教委科技项目 (J0 1L0 2 )
