Effect of Engineering Measures for Water Conservancy on Local Rainfall

WANG Yun-zhang; WANG Chang-gao; KANG Ling-ling

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Effect of Engineering Measures for Water Conservancy on Local Rainfall

- Effect of Engineering Measures for Water Conservancy on Local Rainfall
- Bulletin of Soiland Water Conservation Vol. 23, Issue 4, Pages: 6-9(2004)
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- Published：2004
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WANG Yun-zhang, WANG Chang-gao, KANG Ling-ling. Effect of Engineering Measures for Water Conservancy on Local Rainfall[J]. Bulletin of Soiland Water Conservation, 2004, 23(4): 6-9.
DOI：

WANG Yun-zhang, WANG Chang-gao, KANG Ling-ling. Effect of Engineering Measures for Water Conservancy on Local Rainfall[J]. Bulletin of Soiland Water Conservation, 2004, 23(4): 6-9. DOI：

摘要

根据黄河中游三门峡水库高水位运行期和黄土高原水土保持世界银行贷款项目实施8

来有关监测数据

结合区域内气象资料

分析了水利水保工程措施实施所引起局地降水的变化。结果表明

由于水库大量蓄水和大规模林草、梯田等坡面措施及相当数量沟道坝库工程的实施

不仅改变了下垫面状况

而且较多地截留雨水和拦蓄地表径流

增多了内源水汽

加快了区域水分循环

从而改变了当地小气候特性

并对局地降水产生一定影响。

Abstract

This study involved analysis of the effect of engineering measures for water conservancy on localrainfall.The analysis was based on data collected over 8 years

during the period of high water levels in Sanmenxia Reservoir

on the middle reach of the Yellow River.Data collection followed implementation of the World Bank Loan Project for soil and water conservation in the Loess Plateau.Meteorological data was also used. The results show that high volume water storage in reservoir and the implementation of large scale afforestation and grassland establishment and earth works

such as slope terracing and check dam construction

altered the base soil and water conditions.Rainfall interception increased and runoff were impounded.The engineering measures ultimately increased water vapor production and regional moisture circulation

so that the local microclimate was improved and rainfall increased.

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Related Institution

School of Agriculture， Ningxia University

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