PDF Download

[1]ZHANG Ruoxi,QIN Fucang,LI Long,et al.Responses of Slope Micro-geomorphology to Erosion and Sediment Yield in Arsenic Sandstone Area[J].Research of Soil and Water Conservation,2022,29(06):21-27,35.

Copy

Responses of Slope Micro-geomorphology to Erosion and Sediment Yield in Arsenic Sandstone Area

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 29 Number of periods: 2022 06 Page number: 21-27,35 Column: Public date: 2022-10-20

Title:: Responses of Slope Micro-geomorphology to Erosion and Sediment Yield in Arsenic Sandstone Area

Author(s):: ZHANG Ruoxi¹, QIN Fucang^1,2, LI Long^1,3, YANG Zhenqi⁴, QIAN Qiuying¹; (1.College of Desert Control Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; 2.Forestry College, Inner Mongolia Agricultural University, Hohhot 010018, China; 3.Key Laboratory of State Forest Administration for Desert Ecosystem Protection and Restoration, Hohhot 010000, China; 4.Institute of Water Resources for Pastoral Area of the Ministry of Water Resources of China, Hohhot 010020, China)

Keywords:: pisha sandstone areas; slope; micro geomorphology; erosion sediment

CLC:: S157

DOI:: -

Abstract:: In order to quantitatively describe the response relationship between slope micro-geomorphology change and erosion, based on the 3D laser scanner, this paper takes the exposed slope in the arsenic sandstone area which is severely eroded as the research object. The situ field monitoring was carried out under the condition of natural rainfall, the spatial variation characteristics of slope micro-topography and slope erosion were analysed under 13 effective rainfall in two rainy seasons. The results showed that:(1)There were 3 times more severe erosion, 5 times more moderate erosion, 3 times more light erosion and 2 times more slight erosion, and all of them were closely related to rainfall intensity.(2)All the topographic factors reached their peak values during R₄ rainfall, and the change rules varied with different slope positions. The change rules of the middle slope and the lower slope were basically the same, while the fluctuation of the topographic factors on the upper slope was more obvious.(3)There is a certain correlation among all the topographic factors, and different slope positions have different relationships with sediment yield, abortion and sediment yield. The correlation between runoff yield and gradient is significant, and the correlation is stronger with the lower slope position. The sediment yield was significantly correlated with surface roughness on the upper slope and on the middle slope, and with surface relief on the lower slope. To sum up, the change of slope micro-geomorphology can reflect the intensity of slope erosion to a certain extent.

References:: [1] Sun W Y, Shao Q Q, Liu J Y, et al. Assessing the effects of land use and topography on soil erosion on the Loess Plateau in China[J]. Catena, 2014,121:151-163.
[2] 张青峰,王健,赵龙山,等.基于M-DEM黄土人工锄耕坡面微地形特征研究[J].干旱区资源与环境,2012,26(9):149-153.
[3] 张若曦,秦富仓,李龙,等.水力侵蚀对砒砂岩区土壤有机碳空间变异性的影响[J].水土保持学报,2020,34(6):117-124.
[4] Zhao L S, Liang X L, Wu F Q. Soil surface roughness change and its effect on runoff and erosion on the Loess Plateau of China[J]. Journal of Arid Land, 2014,6(4):400-409.
[5] 张文博.土壤结构体对工程堆积体坡面侵蚀产沙及微地形的影响[D].陕西杨凌:西北农林科技大学,2020.
[6] Darboux F, Huang C. Does soil surface roughness increase or decrease water and particle transfers[J]. Soil Science Society of America Journal, 2005,69(3):748-756.
[7] 梁心蓝.水蚀过程中地表糙度变化及侵蚀响应[D].陕西杨凌:西北农林科技大学,2015.
[8] Gómez J A, Nearing M A. Runoff and sediment losses from rough and smooth soil surfaces in a laboratory experiment[J]. Catena, 2005,59(3):253-266.
[9] Römkens M, Helming K, Prasad S. Soil erosion under different rainfall intensities, surface roughness, and soil water regimes[J]. Catena, 2002,46(2):103-123.
[10] 李清溪,丁文峰,朱秀迪,等.雨强和地表糙度对坡面微地形及侵蚀的影响[J].长江科学院院报,2019,36(1):41-47.
[11] 张建文,李鹏,高海东,等.覆沙坡面微地形变化与侵蚀产沙的响应关系[J].干旱区研究,2020,37(3):757-764.
[12] 高玄娜,肖培青,张攀,等.复合侵蚀作用下砒砂岩坡面侵蚀泥沙颗粒特征[J].水土保持学报,2021,35(1):44-49.
[13] 杨吉山,姚文艺,郑明国,等.原状砒砂岩坡面产流产沙规律试验研究[J].人民黄河,2017,39(1):98-101,109.
[14] 胡剑汝,饶良懿,申震洲.基于WEPP的砒砂岩坡面复合侵蚀治理生态水文效应评价[J].水土保持学报,2020,34(2):123-129,238.
[15] 陈鹏,张铁钢,董智,等.灌草格局对砒砂岩区产流产沙特征的影响[J].干旱区资源与环境,2020,34(9):116-121.
[16] 汤珊珊.覆沙坡面水蚀产沙动力过程与微地貌变化的响应研究[D].西安:西安理工大学,2018.
[17] 郑粉莉,高学田.坡面汇流汇沙与侵蚀—搬运—沉积过程[J].土壤学报,2004,41(1):134-139.
[18] 吴发启,赵西宁,崔卫芳.坡耕地耕作管理措施对降雨入渗的影响[J].水土保持学报,2003,17(3):115-117.
[19] 赵龙山,张青峰,王健,等.黄土坡面不同微坡位上糙度对降雨侵蚀的响应[J].土壤学报,2013,50(4):637-642.
[20] 唐辉,李占斌,李鹏,等.模拟降雨下坡面微地形量化及其与产流产沙的关系[J].农业工程学报,2015,31(24):127-133.
[21] 赵斯琦,王晓红,舒天竹,等.喀斯特地区区域尺度土壤侵蚀地形因子研究[J].干旱区资源与环境,2018,32(5):97-103.

Similar References:

Memo

Last Update: 2022-10-20