[1]赵传普,徐学选,陈天林,等.关川河流域土地利用变化对径流的影响[J].水土保持研究,2015,22(03):83-87.
　ZHAO Chuanpu,XU Xuexuan,CHEN Tianlin,et al.Impact of Land Use Changes on the Streamflow in Guanchuanhe Watershed[J].Research of Soil and Water Conservation,2015,22(03):83-87.
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关川河流域土地利用变化对径流的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 22 期数: 2015年03期 页码: 83-87 栏目: 出版日期: 2015-06-28
Title:
Impact of Land Use Changes on the Streamflow in Guanchuanhe Watershed
作者:
赵传普1, 徐学选1,2, 陈天林3, 张少妮2
1. 中国科学院 水利部 水土保持研究所, 陕西 杨凌 712100;
2. 西北农林科技大学 水土保持研究所, 陕西 杨凌 712100;
3. 甘肃省水利厅水土保持局, 兰州 730000
Author(s):
ZHAO Chuanpu1, XU Xuexuan1,2, CHEN Tianlin3, ZHANG Shaoni2
1. Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. Soil and Water Conservation Bureau, Department of Water Resources of Gansu Province, Lanzhou 730000, China
关键词:
关川河流域; 土地利用变化; SWAT模型; 径流模拟
Keywords:
Guanchuanhe Watershed; land use change; SWAT model; runoff simulation
分类号:
F301.24;S157.1
摘要:
土地利用/覆被变化（LUCC）引起的径流响应研究不仅是流域水文学的一个热点，也是评估国家退耕还林战略实施效果的需要。选择黄土高原西部关川河流域为对象，依据流域出口大羊营水文站1993—2001年期间5—9月的径流资料，对SWAT模型进行参数率定。进而利用率定后的SWAT模型计算1980年、2000年两期土地利用下的径流量，分析土地利用变化的水文响应。结果表明：模拟率定期和验证期的决定系数R2和Nash-Sutcliffe效率系数分别为：0.85，0.78和0.86，0.84，说明模型对关川河流域汛期径流量模拟具有较高的适用性；关川河流域在实施了退耕还林草后，2000年较1980年耕地大面积减少而草地大面积增加。在气象条件相同的前提下，即气象输入数据不变的情况下，2000年土地利用下的月径流模拟值相比1980年土地利用下的月径流降低，9 a内年均（5—9月份）径流量减少1.39 m3/s。既在气候不变情况下，林草植被恢复将会引起流域径流趋于减少。
Abstract:
Research about the response of runoff on land use/cover change(LUCC) is not only a hotspot of watershed hydrology, but also the need for assessing the effect of the National Strategy of Grain for Green. In this study, based on the nine-year (1993—2001) runoff data from May to September at Dayangying hydrological station which is located in the outlet of Guanchuanhe Watershed, parameters of the SWAT model were calibrated. Then the runoff rates in 1980 and 2000 were simulated using the the calibrated SWAT model, and the impact of land use change on the streamflow was analyzed. The results showed that the correlation coefficients and Nash-Sutcliffe’s coefficients in the period of calibration and validation were 0.85 and 0.78, 0.86 and 0.84, respectively, suggesting that SWAT model was well available for simulating flood runoff in this watershed; after the implementation of ‘Grain for Green’ in the area, compared with 1980, the area of arable land decreased while area of grassland increased greatly in 2000. Under the same climatic condition, the monthly simulated runoff in 2000 decreased compared with that of 1980, and the nine-year annual average runoff (May-September) reduction was 1.39 m3/s. The runoff tended to decrease due to vegetation restoration under the condition of same climates.

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备注/Memo

收稿日期:2014-07-10;改回日期:2014-08-19。
基金项目:甘肃省科技支撑项目“水土保持对西部黄土高原河川径流调控作用研究”（1104FKCA146）；中国科学院重点项目“近百年黄土高原侵蚀环境与水沙变化”（KZZD-EW-04-03）；中国科学院外国专家特聘研究员计划（2013T2Z0027）
作者简介:赵传普(1990-),男,山东临沂人,硕士研究生,研究方向为流域管理。E-mail:chuanpu2008ok@163.com
通讯作者:徐学选(1966-),男,陕西大荔人,博士,研究员,主要从事土壤水分生态研究。E-mail:xuxuexuan@nwsuaf.edu.cn

更新日期/Last Update: 1900-01-01