| 晋西黄土区小流域典型植被水文功能优化研究 |
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| 引用本文： | 郭军庭,张志强,唐丽霞.晋西黄土区小流域典型植被水文功能优化研究[J].水土保持通报,2010,30(3):36-40. |
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| 作者姓名： | 郭军庭 张志强 唐丽霞 |
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| 作者单位： | 1. 北京林业大学,水土保持与荒漠化防治教育部重点实验室,北京100083
2. 贵州大学,贵州,贵阳,550025 |
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| 基金项目： | 国家十一五科技攻关项目 |
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| 摘 要： | 处于不同生长发育阶段,不同人工干扰强度与不同演替阶段的植被类型发挥着不同程度的生态环境服务功能,在流域尺度上进行植被类型的优化配置是充分发挥植被水土保持功能的重要前提.在对晋西黄土高原丘陵沟壑区蔡家川流域内6种主要林分类型进行实地调查的基础上,应用层次分析法研究了不同植被类型的垂直结构及其水源涵养能力的差异.研究结果表明,林分的垂直结构好,相应的水源涵养能力也强.该流域水源涵养能力:天然次生山杨林>天然次生槲栎林>人工刺槐侧柏林混交>人工油松林>人工刺槐林;应用水源涵养功能研究结果对该流域中嵌套的刘家凹小流域现有林分的面积进行调整,调整后该小流域的水源涵养总体能力提高了35.99%,其中土壤有效持水量增加了46.39%,增加幅度最大.
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| 关 键 词： | 林分 垂直结构 水源涵养 层次分析法 |
| 收稿时间： | 2009/10/19 0:00:00 |
| 修稿时间： | 1/6/2010 12:00:00 AM |
Improving Hydrological Functions of a Small Watershed in Hilly and Gul ly Loess Area by Vegetation Type Optimization |
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| GUO Junting,ZHANG Zhiqiang and TANG Lixia.Improving Hydrological Functions of a Small Watershed in Hilly and Gul ly Loess Area by Vegetation Type Optimization[J].Bulletin of Soil and Water Conservation,2010,30(3):36-40. |
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| Authors: | GUO Junting ZHANG Zhiqiang and TANG Lixia |
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| Institution: | Key Laboratory of Soil and Water Conservation and Desertification Combating of the EducationMinistry, Beijing Forestry University, Beijing 100083, China;Key Laboratory of Soil and Water Conservation and Desertification Combating of the EducationMinistry, Beijing Forestry University, Beijing 100083, China;Guizhou University, Guiyang, Guizhou 550025, China |
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| Abstract: | On the Loess Plateau, dif ferent vegetation types in a forest water shed play an extremely important ecological role in soil and water conservation. By investigating and observing the 6 major forest types in Caij-i achuan watershed, analytical hierarchy is used to evaluate the vertical structure and water conservation capacity of forest types. Results show that the vertical structure of a good stand type is corresponding to strong water conservation. Accordingly, existing stands of Liujiaao water shed are adjusted and the ability of water conservation is greatly increased by 35. 99%. The most significant increase is the soil available water-holding capacity which is increased by 45. 94% . |
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| Keywords: | forest type vertical structure water conservation analytical hierarchy |
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