| 翁白莎,杨盼盼,严登华,王浩.黄河中游植被的水土保持作用范围的集合分析[J].水利学报,2025,56(6):693-704,716 |
| 黄河中游植被的水土保持作用范围的集合分析 |
| Effects of soil and water conservation of vegetation measures in the middle Yellow River |
| 投稿时间：2024-07-26 |
| DOI：10.13243/j.cnki.slxb.20240472 |
| 中文关键词: 水土保持措施 水土保持作用 Meta分析 黄河中游 |
| 英文关键词: soil and water conservation measure soil and water conservation Meta-analysis the middle Yellow River |
| 基金项目:国家重点研发计划项目（2022YFC3080300） |
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| 中文摘要: |
| 系统分析植树造林、退耕种草、封禁（自然恢复）工程等水土保持措施的试验结果,对客观认识黄河中游产汇流机理及未来水沙情势具有十分重要的意义。本文在梳理已发表的1165篇国内外文献的随机对照试验结果的基础上,通过Meta分析方法,整编形成1089个包含地表产流模数、侵蚀模数、平均入渗率三个指标的数据集,量化分析了上述三类措施的减水、减沙和土壤储水作用,以及地形坡度和降雨强度对三类措施水土保持作用的影响。结果表明,植树造林和退耕种草措施的水土保持作用随植被覆盖度增加而增强,随地形坡度和降雨强度增加而减弱,特别是在降雨强度大于120 mm/h时将受到剧烈影响。自然恢复措施的土壤储水作用随恢复年限增加而提升,减水和减沙作用在恢复年限30~60年之间相对稳定。本研究还提出了三类措施的水土保持作用值,旨在为数值模拟提供参数支持；讨论了水土流失治理的植被覆盖恢复程度,建议退耕种草措施控制在60%以内、植树造林措施控制在60%~70%为宜。 |
| 英文摘要: |
| Afforestation, grass planting, and natural restoration are typical soil and water conservation measures （SWCMs） in the middle Yellow River. Analyzing these SWCMs’ water and sediment regulating effects is of great significance for understanding the mechanisms of runoff and the future situation of water and sediment in the middle Yellow River. This article analyzed 1165 relevant literature and compiled 1089 datasets containing three indicators： surface runoff modulus, sediment yield modulus, and average infiltration rate. It then conducted a quantitative analysis of the water and sediment regulating effects of these SWCMs, as well as the influence of terrain slope and rainfall intensity on these effects. The results indicate that the effects of soil and water conservation of afforestation and grass planting increased with the increase of vegetation coverage, but decreased with the increase of terrain slope and rainfall intensity, especially when the rainfall intensity was more than 120 mm/h. The effect of soil water storage of natural restoration increased with the increase of restoration years, and the effects of water and sediment reduction were relatively stable when the restoration years are between 30 and 60 years. The effective values of these SWCMs are proposed to provide parameter support for numerical simulation. It is recommended that the vegetation cover of grass planting should be controlled within 60% and afforestation should be controlled within 60%—70%. |
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