WANG Hui,ZHANG Yu,LIU Guang-sheng,et al.Influence of Terrace Development on Hydrological Runoff Process in the Source Region of Wei River from 1970 to 2006[J].Research of Soil and Water Conservation,2009,16(02):220-226.
渭河源区1970-2006年梯田开发对水文产流的影响
- Title:
- Influence of Terrace Development on Hydrological Runoff Process in the Source Region of Wei River from 1970 to 2006
- Keywords:
- Wei river; land use; terrace; hydrological process
- 分类号:
- P333;S157.31
- 摘要:
- 渭河源区自70年代以来持续进行大规模梯田建设,该文对土地覆盖变化、降水条件和梯田面积变化3个因素进行分析,从年、最丰3个月(7-9月)、最枯3个月(12月至次年2月)3个不同时段探讨研究区产流效率持续递减的根本原因.基于流域降水-产流-梯田面积的变化趋势分析和显著的统计回归关系,建立了基于降水和梯田面积两种因素的产流统计模拟模型,研究结果表明:大规模梯田开发是造成渭河源区产流效率降低的根本原因,并且随着梯田面积的增加对枯水期产流影响最为剧烈、对丰水期产流影响相对较弱.对于合理规划开发利用土地,流域水资源的可持续利用和生态环境平衡具有重要的指导意义.
- Abstract:
- Large-scale of terrace development had been carried out continuously since 1970s in the source region of Wei river.Three factors of land cover change,precipitation condition and terrace area change had been analyzed on three different stages,which were annually stage and three wet months stage from July to September,three dry months stage from December to February,to obtain the basis reason of runoff efficiency sustainably decrease.Based on the analysis of changing trends and statistical regression relationships between basin precipitation,runoff and terrace area,statistical simulation model of runoff process which was on the basis of precipitation and terrace area had been established.The results show that the main cause of runoff efficiency decrease was large-scale terrace development in the region of Wei River.Meanwhile,there was an intense influence on dry stage runoff and a relative weak influence on wet stage runoff with the increase of terrace area.In summary,this paper may have great guiding significance on reasonably land planning,developing and using,basin water resources sustainable utilization and ecological environment balance.
参考文献/References:
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[2] 李元寿,王根绪,沈永平,等.长江源区不同植被覆盖下产流产沙效应初步研究[J].冰川冻土,2005,27(6):869-876.
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备注/Memo
收稿日期:2008-10-11;改回日期:。
基金项目:国家自然科学基金项目(No.40730634)
作者简介:王辉(1982- ),男,江苏南通人,硕士研究生,研究方向为生态水文,水资源规划配制.E-mail:wanghui1982@163.com
通讯作者:张钰(1963- ),男,甘肃平凉人,博士,教授级高工,主要研究方向流域生态水文、水资源调查评价、水资源配置.E-mail:zhangyu@lzu.edu.cn