[1]吴蕾,穆兴民,高鹏,等.黄土高原地区植被盖度对产流产沙的影响[J].水土保持研究,2019,26(06):133-138,144.
　WU Lei,MU Xingmin,GAO Peng,et al.Effects of Vegetation Coverage on Runoff and Sediment Yield in the Loess Plateau[J].Research of Soil and Water Conservation,2019,26(06):133-138,144.
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黄土高原地区植被盖度对产流产沙的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年06期 页码: 133-138,144 栏目: 出版日期: 2019-10-17
Title:
Effects of Vegetation Coverage on Runoff and Sediment Yield in the Loess Plateau
作者:
吴蕾1, 穆兴民1,2, 高鹏1,2, 赵广举1,2, 孙文义1,2, 田鹏1,2
1. 西北农林科技大学 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100;
2. 中国科学院 水利部 水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100
Author(s):
WU Lei1, MU Xingmin1,2, GAO Peng1,2, ZHAO Guangju1,2, SUN Wenyi1,2, TIAN Peng1,2
1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A & F University, Yangling, Shaanxi 712100, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, CAS & MWR, Yangling, Shaanxi 712100, China
关键词:
黄土高原; 植被盖度; 减流效益; 减沙效益
Keywords:
the Loess Plateau; vegetation coverage; runoff reduction benefit; sediment reduction benefit
分类号:
S157
摘要:
为了研究黄土高原地区不同植被盖度对产流产沙的影响。通过文献检索，收集到30篇相关文献158组有效数据，运用系统整合分析的方法研究了不同植被盖度的减流减沙效益。结果表明：（1）室内外人工模拟降雨条件下，产流产沙量都随着盖度的增加而逐渐减少，植被的减流效益随盖度的增加先增加后减少，低盖度（0~40%）时植被的减流效益较低，高盖度时减流效益也有所降低，植被的减沙效益则随盖度的增加而一直增加，且其减沙效益大于减流效益。（2）减流减沙效益随盖度增加呈对数变化，即符合y=alnx+b型，该图形具有开始增长快，当达到某一值后增长变缓并趋于稳定的特点。（3）黄土高原地区植被的有效盖度为40%~50%，临界盖度为70%~80%。因此，在黄土高原进行植被建设时初始盖度应达到有效盖度，即40%~50%，在之后的植被恢复过程中，维持植被盖度在70%~80%，使植被能发挥最大的蓄水保土作用。该研究可为黄土高原地区植被建设和生态修复提供科学依据，同时为区域科学布设植被措施提供参考。
Abstract:
In order to study the effect of different vegetation coverage on runoff sediment yield in loess plateau. Through literature search, a total of 158 sets of valid data were collected from 30 related literatures. The system integration analysis method was used to study the variation of runoff and sediment reductions with different vegetation covers. The results show that:(1) under indoor and outdoor artificial simulated rainfall conditions, the yields of the runoff and sediment gradually decrease with the increase of coverage, the runoff reduction benefit by vegetation increases first and then decreases with the increase of coverage; at low coverage (0~40%), the runoff reduction benefit by vegetation is low; the flow reduction benefit also reduced when the coverage is high; the sediment reduction benefit of vegetation has been increasing with the increase of coverage, and its sediment reduction benefit is greater than the runoff reduction benefit; (2) the runoff and sediment reduction benefit changes follow the logarithmic function (y=alnx+b) with the increase of coverage, and the graph has the characteristics with starting to grow fast, and when it reaches a certain value, the growth slows down and tends to be stable; (3) the effective coverage of vegetation in the Loess Plateau is between 40%~50%, and the critical coverage is 70%~80%. Therefore, the initial coverage of vegetation construction in the Loess Plateau should reach an effective coverage of 40%~50%. In the subsequent vegetation restoration process, the vegetation coverage should be maintained at 70%~80%, so that the vegetation can play the role of maximum water storage and soil preservation. This study can provide the scientific basis for vegetation construction and ecological restoration in the region of the Loess Plateau and a reference for regional scientific vegetation arrangement measures.

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备注/Memo

收稿日期:2018-12-21;改回日期:2019-02-23。
基金项目:十三五国家重点研发计划专题计划"黄土高原水土流失综合治理技术及示范"（2016YFC0501707）
作者简介:吴蕾(1994-),女,河北衡水人,硕士研究生,研究方向为生态水文。E-mail:757366897@qq.com
通讯作者:高鹏(1976-),男,陕西宝鸡人,博士,副研究员,博士生导师,主要从事水土保持和流域生态水文研究。E-mail:gaopeng@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01