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Divergent shift of normal alpine meadow exacerbated soil loss of hillslope alpine meadows based on field experiments

文献类型：期刊论文

作者Ma, Yulei6,7; Liu, Yifan6,7; Ban, Yunyun5; Zhao, Jingxue3,4; Shi, Zhihua1,2,6; Wu, Gaolin1,6,7
刊名INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
出版日期2024-09-01
卷号12期号:3页码:565-577
关键词Alpine meadow Divergent shifts Runoff Soil erodibility Soil loss
ISSN号2095-6339
DOI10.1016/j.iswcr.2023.11.007
英文摘要Global climate change and overgrazing are driving shifts in the plant composition of grassland communities, which may profoundly affect the function of grassland ecosystems in regulating runoff and soil erosion. Here, we examined the shift effects of normal hillslope alpine meadow to shrub and severely degraded meadow states on runoff and sediment generation under natural rainfall conditions, and determined the contributions of plant and soil properties changes to soil erodibility, runoff and sediment generation by in situ rainfall experiment and monitoring on the hillslope of Qinghai-Tibetan Plateau. The results showed that normal meadow shift into severely degraded meadow state, mean weight diameter, soil saturated hydraulic conductivity, soil cohesion and soil erodibility K-factor at the topsoil decreased by 70.3%, 73.1%, 80.3% and-13.1%, respectively, and when normal meadows shift into shrub meadow state, they reduced by 49.1%,-1.3%, 49.4%, and-8.3%, respectively. Runoff and soil loss signi ficantly changed by- 40.0% and 177.8% when normal meadow shifted into a severely degraded meadow state, while runoff and soil loss signi ficantly changed by + 65.0% and +77.8% when normal meadow shifted into a shrub meadow state. Our findings highlight that the two divergent shifts both increased soil loss compared to the normal hillslope alpine meadows. Overall, our results indicate that the divergent shifts of normal alpine meadows exacerbated soil erodibility and soil loss of hillslope alpine meadows. These results obtained here offer a novel perspective on the regulation of runoff and soil erosion in the alpine meadow ecosystem. (c) 2023 International Research and Training Center on Erosion and Sedimentation, China Water and Power Press, and China Institute of Water Resources and Hydropower Research. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
WOS关键词HYDRAULIC-PROPERTIES ; WATER EROSION ; RUNOFF ; VEGETATION ; IMPACT ; CARBON ; FLOW ; ESTABLISHMENT ; ERODIBILITY ; GRASSLAND
资助项目National Natural Science Foundation of China[NSFC41930755] ; National Natural Science Foundation of China[NSFC32230068] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40000000] ; Opening Project of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-202105]
WOS研究方向Environmental Sciences & Ecology ; Agriculture ; Water Resources
语种英语
WOS记录号WOS:001273189800001
出版者KEAI PUBLISHING LTD
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Opening Project of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
源URL[http://ir.igsnrr.ac.cn/handle/311030/207024]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Wu, Gaolin
作者单位1.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
2.Huazhong Agr Univ, Coll Resources & Environm, Wuhan 430070, Peoples R China
3.Lanzhou Univ, Coll Ecol, Lanzhou 730000, Peoples R China
4.Lanzhou Univ, State Key Lab Herbage Improvement & Grassland Agro, Lanzhou 730000, Peoples R China
5.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
6.Chinese Acad Sci & Minist Water Resource, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
7.Northwest A&F Univ, Inst Soil & Water Conservat, Coll Soil & Water Conservat Sci & Engn, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Ma, Yulei,Liu, Yifan,Ban, Yunyun,et al. Divergent shift of normal alpine meadow exacerbated soil loss of hillslope alpine meadows based on field experiments[J]. INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,2024,12(3):565-577.
APA Ma, Yulei,Liu, Yifan,Ban, Yunyun,Zhao, Jingxue,Shi, Zhihua,&Wu, Gaolin.(2024).Divergent shift of normal alpine meadow exacerbated soil loss of hillslope alpine meadows based on field experiments.INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,12(3),565-577.
MLA Ma, Yulei,et al."Divergent shift of normal alpine meadow exacerbated soil loss of hillslope alpine meadows based on field experiments".INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH 12.3(2024):565-577.

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