西南山地森林变化对洪水频率影响的模拟
Simulation of Forest Impacts to the Flood Frequency Characteristics of Mountainous River in South-western China
查看参考文献9篇
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文摘
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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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其他语种文摘
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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 frequency analyses of flood events for different forest coverages,one can find that the reducing rate of flood peak is about 35% at the most advantaged forest condition.The main part of flood reducing effect is come down with forest ratio in 30%-40%.It has only 5% difference in flood reducing effect comparing with the most possible forest coverage(100%).These results mean that the optimal forest ratio for south-western China is between 30%-40%.This criterion can be application in the planning of ecological rehabilitation engineering. |
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来源
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山地学报
,2011,29(5):561-565 【核心库】
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关键词
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森林水文
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洪水频率
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影响评价
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地址
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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
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中国科学院地理科学与资源研究所, 北京, 100101
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1008-2786 |
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学科
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地球物理学 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:4472137
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参考文献 共
9
共1页
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1.
Conway D. Understanding the hydrological impacts of land-cover and land-use change.
IHDP Update,No 1,2001
|
被引
1
次
|
|
|
|
|
2.
Calder I. Land use impacts on water resources.
Land - Water Linkages in Rural Watersheds. Electronic Workshop, Background Paper No. 1,2000
|
被引
1
次
|
|
|
|
|
3.
程根伟. 四川盆地江河经流特征与森林关系的探讨.
水土保持学报,1991,5(1):48-52
|
被引
8
次
|
|
|
|
|
4.
程根伟. 防护林生态效益定量指标体系.
水土保持学报,1991,6(3):79-90
|
被引
1
次
|
|
|
|
|
5.
程根伟. 森林水文研究中的悖论及最新认识.
大自然探索,1996,15(2):81-85
|
被引
12
次
|
|
|
|
|
6.
Arnold J G. Large area hydrologic modeling and assessment,Part I: model development.
Journal of the American Water Resources Association,1998,34(1):73-89
|
被引
343
次
|
|
|
|
|
7.
Sun G. Modeling the Hydrologic Impacts of Forest Harvesting on Florida Flatwoods.
Journal of the American Water Resources Association,1998,34(4):843-854
|
被引
7
次
|
|
|
|
|
8.
陈军锋. 土地覆被变化的水文响应模拟研究.
应用生态学报,2004,15(5):833-836
|
被引
47
次
|
|
|
|
|
9.
石培礼. 长江上游地区主要森林植被类型蓄水能力的初步研究.
自然资源学报,2004,19(3):351-360
|
被引
48
次
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