Improving Hydrological Functions of a Small Watershed in Hilly and Gul ly Loess Area by Vegetation Type Optimization

GUO Junting; ZHANG Zhiqiang; TANG Lixia

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Improving Hydrological Functions of a Small Watershed in Hilly and Gul ly Loess Area by Vegetation Type Optimization

- Improving Hydrological Functions of a Small Watershed in Hilly and Gul ly Loess Area by Vegetation Type Optimization
- Bulletin of Soiland Water Conservation Vol. 29, Issue 3, Pages: 36-40(2010)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
- DOI：
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- Published：2010
- 稿件说明：
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GUO Junting, ZHANG Zhiqiang, TANG Lixia. Improving Hydrological Functions of a Small Watershed in Hilly and Gul ly Loess Area by Vegetation Type Optimization[J]. Bulletin of Soiland Water Conservation, 2010, 29(3): 36-40.
DOI：

GUO Junting, ZHANG Zhiqiang, TANG Lixia. Improving Hydrological Functions of a Small Watershed in Hilly and Gul ly Loess Area by Vegetation Type Optimization[J]. Bulletin of Soiland Water Conservation, 2010, 29(3): 36-40. DOI：

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。

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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Related Institution

The Center of National Northern Mountainous Areas of Agricultural EngineeringResearch,College of Forest,Agricultural University of Hebei Province

State-owned Forest Bureau of Mulan-Weichang in Hebei Province

School of River & Ocean Engineering， Chongqing Jiaotong University

Changting County Soil and Water Conservation Center， Changting

College of Soil and Water Conservation， Beijing Forestry University

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