The effects of varied soil properties induced by natural grassland succession on the process of soil detachment

doi:10.1016/j.catena.2018.04.007

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	The effects of varied soil properties induced by natural grassland succession on the process of soil detachment
	Yan-Fen Yang 2; Wang, B (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Fanning Loess P, Yangling 712100, Shaanxi, Peoples R China.; Jia-Xin Liu 2; Bing Wang 2; Guang-Hui Zhang 1; Pan-Pan Li 2
刊名	CATENA
	2018
卷号	166 页码:192-199
关键词	Overland Flow Soil Resistance Stream Power Grassland The Loess Plateau
ISSN号	0341-8162
DOI	10.1016/j.catena.2018.04.007
文献子类	Article
英文摘要	The changes in soil properties caused by vegetation succession might have great effects on the process of soil detachment by overland flow. This study was carried out to quantify the effects of varied soil properties induced by natural grass succession on soil detachment capacity by overland flow and soil resistance to flowing water erosion on the Loess Plateau. 300 undisturbed soil samples (without roots) were collected from ten typical grasslands, and subjected to flow scouring under six shear stresses ranging from 4.98 to 16.37 pa. The results showed that the maximum soil detachment capacity (3.80 kg m(-2) s(-1)) was found in Astragalus melilotoides Pall. grassland, where it was 49.0 times greater than that of the minimum found in Poa sphondylodes Trin. grassland. Soil properties induced by fibrous root herbage have strong effects on the process of soil detachment. In comparison to grasslands with tap root systems, grasslands with fibrous root herbage have lower soil detachment and rill erodibility by 84.6% and 84.3%, respectively, and critical shear stress which is higher by 15.2%. Stream power was a better parameter than velocity, shear stress or unit stream power for simulating soil detachment capacity. Soil cohesion, bulk density, organic matter and median soil grain size were the main factors affecting the process of soil detachment. Rill erodibility decreased with cohesion or clay content as an exponential or power function, and increased with the median soil grain size as an exponential function. A model was developed to estimate soil detachment capacity based on hydraulic parameters and soil properties on the Loess Plateau. The result was satisfactory and the performance of model was greatly improved in comparison to previous studies (R-2 = 0.77; NSE = 0.61; p < 0.01).
学科主题	Geology ; Agriculture ; Water Resources
出版地	PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000434238800018
资助机构	National Natural Science Foundation of China [41530858, 41771555] ; National Natural Science Foundation of China [41530858, 41771555] ; National Key Research and Development Plan [2016YFC0501703] ; National Key Research and Development Plan [2016YFC0501703] ; Innovative Talents Promotion Plan in Shaanxi Province [2017KJXX-88] ; Innovative Talents Promotion Plan in Shaanxi Province [2017KJXX-88] ; National Natural Science Foundation of China [41530858, 41771555] ; National Natural Science Foundation of China [41530858, 41771555] ; National Key Research and Development Plan [2016YFC0501703] ; National Key Research and Development Plan [2016YFC0501703] ; Innovative Talents Promotion Plan in Shaanxi Province [2017KJXX-88] ; Innovative Talents Promotion Plan in Shaanxi Province [2017KJXX-88]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8221]
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Wang, B (reprint author), Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Fanning Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Fanning Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Yan-Fen Yang,Wang, B ,Jia-Xin Liu,et al. The effects of varied soil properties induced by natural grassland succession on the process of soil detachment[J]. CATENA,2018,166:192-199.
APA	Yan-Fen Yang,Wang, B ,Jia-Xin Liu,Bing Wang,Guang-Hui Zhang,&Pan-Pan Li.(2018).The effects of varied soil properties induced by natural grassland succession on the process of soil detachment.CATENA,166,192-199.
MLA	Yan-Fen Yang,et al."The effects of varied soil properties induced by natural grassland succession on the process of soil detachment".CATENA 166(2018):192-199.