Different Types of Vegetation Cover and Water Conservation Benefits

ZHOU Yi; WEI Tian-xing; XIE Jian-qiang; SHI Xin; GE Gen-batu; DONG Zhe; CHENG Zhong-qiu

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Different Types of Vegetation Cover and Water Conservation Benefits

更新时间：2024-11-07

- Different Types of Vegetation Cover and Water Conservation Benefits
- Vol. 25, Issue 3, (2011)
- 作者机构：
  
  水土保持与荒漠化防治教育部重点实验室,北京林业大学水土保持学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：
  CLC： S157.2
- Published：2011
- 稿件说明：
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ZHOU Yi, WEI Tian-xing, XIE Jian-qiang, et al. Different Types of Vegetation Cover and Water Conservation Benefits[J]. 2011, 25(3).
DOI：

ZHOU Yi, WEI Tian-xing, XIE Jian-qiang, et al. Different Types of Vegetation Cover and Water Conservation Benefits[J]. 2011, 25(3). DOI：

摘要

研究黄土高原北部水蚀风蚀交错区——陕西吴起县退耕还林以来各林地的水土保持效益

对油松沙棘混交林(Pinus tabuliformis+Hippophae rhamnoides)、沙棘林地(Hippophae rhamnoides)、油松林地(Pinus tabuliformis)、达呼里胡枝子+赖草地(Lespedeza davurica+Leymus secalinus)径流小区的产流产沙情况、土壤物理性质(土壤孔隙度和容重)、土壤抗冲性、土壤水分状况进行分析。得出以下结论:(1)不同植被类型的林地土壤抗冲性有明显的差异

相同植被类型的林地抗冲性随坡度的增大而降低;林草植被措施具有极强的提高土壤抗冲性的能力;(2)达呼里胡枝子+赖草地、油松林地的径流量最大

油松沙棘混交林的径流量次之

沙棘林地径流量最小;植被类型相同但坡度不同的林地

坡度大的林地地表径流量高;每种林地的径流量随着降雨强度的增大而增大;(3)侵蚀模数按从小到大的林地顺序是:沙棘纯林、沙棘油松混交林、达呼里胡枝子+赖草、油松林地;在植被类型相同、坡度不同的小区

地表径流量和侵蚀模数随坡度增大而增大。从5个径流小区水土保持效益分析结果看

试验小区...

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