| 东江流域典型子流域土地利用/覆被变化对地表径流影响 |
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| 引用本文： | 杨宏伟,许崇育.东江流域典型子流域土地利用/覆被变化对地表径流影响[J].湖泊科学,2011,23(6):991-996. |
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| 作者姓名： | 杨宏伟 许崇育 |
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| 作者单位： | 1. 南京大学地理与海洋科学学院,南京210093;中国科学院南京地理与湖泊研究所,南京210008
2. 南京大学地理与海洋科学学院,南京,210093 |
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| 基金项目： | 香港特别行政区研究基金会项目 |
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| 摘 要： | 应用SWAT模型对东江上中下游典型流域的地表径流进行模拟,采用1977 - 1981年和1996-2000年胜前、顺天和九州三个出口控制站逐月实测径流资料进行模型校准和验证,确定模型的敏感性参数,采用相关系数R2和Nash-Suttclife模型效率系数ENS,对SWAT模型模拟结果进行评价,结果显示模拟精度较高,R2...
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| 关 键 词： | SWAT模型 土地利用/覆被变化 地表径流 东江典型流域 |
| 收稿时间： | 2011/4/20 0:00:00 |
| 修稿时间： | 6/8/2011 12:00:00 AM |
Effect of LUCC on runoff of three representative watersheds in Dongjiang River Basin |
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| YANG Hongwei and XU Chongyu.Effect of LUCC on runoff of three representative watersheds in Dongjiang River Basin[J].Journal of Lake Science,2011,23(6):991-996. |
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| Authors: | YANG Hongwei and XU Chongyu |
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| Institution: | School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, P.R.China;Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P.R.China and School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, P.R.China |
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| Abstract: | With the hydrological model SWAT, the runoff variation of three representative watersheds in Dongjiang River Basin was simulated.With discharge data from Shengqian, Shuntian and Jiuzhou hydrological stations in 1977-1981 and 1996-2000, more sensitive hydrology factors were calibrated and satisfactory simulation results were obtained (R2>0.85, 0.68 <ENS <0.75).The study investigated the influences of LUCC on the hydrological process of the three watersheds.The result shows that:(1) the in-crease of forest area was the cause of annual runoff decrease;(2) in terms of annual variability, runoff decrease in the wet season while increase in the dry season;(3) the decrease of runoff becomes more notable when the forest area increases with slope <15°. |
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| Keywords: | SWAT LUCC runoff representative watersheds in Dongjiang River Basin |
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