| 西南山地森林变化对洪水频率影响的模拟 |
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| 引用本文： | 程根伟,石培礼,田雨.西南山地森林变化对洪水频率影响的模拟[J].山地学报,2011,29(5). |
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| 作者姓名： | 程根伟 石培礼 田雨 |
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| 作者单位： | 1. 中国科学院水利部成都山地灾害与环境研究所,四川成都,610041
2. 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 国家自然科学基金项目(31070405)资助~~ |
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| 摘 要： | 森林砍伐和恢复改变了流域洪水形成条件,将影响河流洪水的总量与洪峰形态,但是选择合适的技术来进行准确的分析评价仍然是个难题.采用流域分布式水文数学模型(SWAT)对四川梭磨河径流过程进行模拟,得到不同森林覆被率的洪水过程和洪峰的频率分布.针对各种森林情境下的洪水过程模拟,发现对于中小尺度流域,良好的森林覆被可以减小洪水大小30％～ 40％,而且其中森林覆被率在35％ ～ 40％之内具有最显著的滞蓄洪效益,它与完全的森林覆被对在洪水的影响差异仅在5％以内,这对于我国西南生态保护与恢复工程的实施决策具有重要参考价值.
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| 关 键 词： | 森林水文 洪水频率 影响评价 |
Simulation of Forest Impacts to the Flood Frequency Characteristics of Mountainous River in South-western China |
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| CHENG Genwei
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SHI Peili
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TIAN Yu.Simulation of Forest Impacts to the Flood Frequency Characteristics of Mountainous River in South-western China[J].Journal of Mountain Research,2011,29(5). |
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| Authors: | CHENG Genwei SHI Peili TIAN Yu |
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| Institution: | CHENG Genwei1,SHI Peili2,TIAN Yu1(1.Institute of Mountain Hazards & Environment,CAS,Chengdu 610041,China,2.Institute of Geography Science and Resources,Beijing 100101,China) |
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| Abstract: | Forest logging or reforestation will singnificantly influent the generation condition of hydrographes.The flood peaks and total volume may change with the variation of forest coverage.But it is hard to selecte a proper method to evaluate this impact quantitatively.In the paper a distributed hydrological mathematical model(SWAT) is used to simulate the hydrographies of the Shuomo River,south-western China.The flood frequency curves are derived from the modeled flood events by this model.Based on the frequenc... |
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| Keywords: | forest change flood features impact evaluation |
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