| 土壤结皮对黑土区坡面产流产沙的影响 |
| 高燕1; 郑粉莉1,2; 王彬1; 李桂芳2; 张姣1
|
| 2014
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发表期刊 | 水土保持研究
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卷号 | 21期号:4页码:17-20 |
摘要 | 土壤结皮对坡面产流形成和侵蚀过程有重要的影响。基于室内人工模拟降雨试验,研究了土壤结皮对黑土
区坡面产流产沙的影响。结果表明:土壤结皮促使坡面产流提前发生,但对坡面产流量的影响不甚明显;对坡面侵蚀
产沙量却有明显的作用。试验条件下,5°坡面有土壤结皮处理的坡面侵蚀产沙量较无土壤结皮处理减少了54%。有
土壤结皮处理的10°坡面,在降雨过程中结皮尚未破坏前,其坡面侵蚀产沙量较无土壤结皮处理的对照减少了40%;
一旦土壤结皮被破坏,之后的坡面侵蚀产沙量较无土壤结皮处理的对照增加了46%;在整个降雨过程中,10°有土壤
结皮处理的坡面侵蚀产沙量较无土壤结皮处理增加了16%。表明土壤结皮对坡面侵蚀的影响与地面坡度有密切
关系。 |
其他摘要 | Soil surface crust has great impacts on hillslope erosion process.Simulated rainfall experiments
were conducted to investigate the effect of soil crust on runoff and sediment yield on hillslope in the black soil
region.The experimental design included two kinds of soil surface(crust and non-crust),one rainfall intensity(
60mm/h)and two slope gradients(5°and 10°).Results showed that the runoff occurrence with soil
crust treatment was earlier than that of non-crust treatment,but runoff rate was similar for both soil surface
treatments.Compared to the non-crust treatment,the sediment yield on 5°slope with crust decreased by
54%;the sediment yield of 10°slope decreased by 40% when the soil crust existed in the process of rainfall
because soil crust has the function of restraining sediment generation;but it increased by 46%after the soil
crust was broken.The total sediment yield on 10°slope with initial crust increased by 16%compared to that
in the non-crust treatment in the duration of the simulated rainfall.Under the experimental conditions,this
study results showed that slope gradient was the key factor that soil crust affected soil erosion. |
关键词 | 东北黑土区
土壤结皮
坡度
产流量
侵蚀产沙量
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收录类别 | 中文核心期刊要目总览
|
语种 | 中文
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文献类型 | 期刊论文
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条目标识符 | sbir.nwafu.edu.cn/handle/361005/9726
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专题 | 水保所知识产出(1956---)
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作者单位 | 1.西北农林科技大学资源环境学院黄土高原土壤侵蚀与旱地农业国家重点实验室 2.中国科学院水利部水土保持研究所
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推荐引用方式 GB/T 7714 |
高燕,郑粉莉,王彬,等. 土壤结皮对黑土区坡面产流产沙的影响[J]. 水土保持研究,2014,21(4):17-20.
|
APA |
高燕,郑粉莉,王彬,李桂芳,&张姣.(2014).土壤结皮对黑土区坡面产流产沙的影响.水土保持研究,21(4),17-20.
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MLA |
高燕,et al."土壤结皮对黑土区坡面产流产沙的影响".水土保持研究 21.4(2014):17-20.
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文件名:
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土壤结皮对黑土区坡面产流产沙的影响_高燕.pdf
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格式:
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Adobe PDF
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