Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China

Coupling vegetation cover pattern with soil erosion and runoff generation positions a multi-discipline hotspot. Due to the widely occurred patchy vegetation cover and water-limited environment, regulation of vegetation cover pattern on runoff and soil erosion in arid and semiarid environment was add...

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Autores principales:	Chongjun Tang, Yu Liu, Zhongwu Li, Liping Guo, Aizhen Xu, Jiading Zhao
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Soil erosion Runoff Vegetation cover pattern Pattern metrics Red soil Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/d7eb4538515e4cb9b51416bf84d0a660
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id	oai:doaj.org-article:d7eb4538515e4cb9b51416bf84d0a660
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spelling	oai:doaj.org-article:d7eb4538515e4cb9b51416bf84d0a6602021-12-01T04:56:49ZEffectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China1470-160X10.1016/j.ecolind.2021.107956https://doaj.org/article/d7eb4538515e4cb9b51416bf84d0a6602021-10-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1470160X2100621Xhttps://doaj.org/toc/1470-160XCoupling vegetation cover pattern with soil erosion and runoff generation positions a multi-discipline hotspot. Due to the widely occurred patchy vegetation cover and water-limited environment, regulation of vegetation cover pattern on runoff and soil erosion in arid and semiarid environment was addressed widely. In tropical and subtropical environment, patchy vegetation cover pattern also widely occurred in human-dominated landscapes. However, the effect of vegetation cover pattern on runoff generation and sediment yield and its dependence on rainfall characteristics attract little attention, and are unclear. Correspondingly, this study addresses two relevant issues: (1) the rainfall-dependent capacity of vegetation cover pattern to mitigate runoff and soil erosion; (2) rainfall-runoff and rainfall-erosion regimes mitigated by vegetation cover pattern. Eighteen 10 m-by-5 m plots were constructed for the three-year (2015–2017) observation in a humid and red-soil-covered environment in southern China. The results show that vegetation cover pattern affected the response of runoff generation and soil erosion to rainfall. The soil loss was more readily to be regulated by the fraction and spatial pattern of vegetation cover than runoff; the potential of the fraction of vegetation cover in regulating soil loss positively response to rainfall depth and rainfall intensity; and rising rainfall depth led to a weakened relationship between vegetation coverage and runoff volume. Our results illustrated that the increased rainfall intensity promotes the regression relationship between vegetation coverage and runoff volume. In this humid environment, vegetation cover pattern regulates the response of runoff and sediment discharge to rainfall characteristics; and the effectiveness of vegetation cover pattern on regulation runoff and sediment discharge was rainfall-dependent. This study indicates that including connectivity parameters in quantifying the spatial pattern of vegetation may lead to different understanding of the effectiveness of vegetation cover on hydrology and soil erosion.Chongjun TangYu LiuZhongwu LiLiping GuoAizhen XuJiading ZhaoElsevierarticleSoil erosionRunoffVegetation cover patternPattern metricsRed soilEcologyQH540-549.5ENEcological Indicators, Vol 129, Iss , Pp 107956- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Soil erosion Runoff Vegetation cover pattern Pattern metrics Red soil Ecology QH540-549.5
spellingShingle	Soil erosion Runoff Vegetation cover pattern Pattern metrics Red soil Ecology QH540-549.5 Chongjun Tang Yu Liu Zhongwu Li Liping Guo Aizhen Xu Jiading Zhao Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China
description	Coupling vegetation cover pattern with soil erosion and runoff generation positions a multi-discipline hotspot. Due to the widely occurred patchy vegetation cover and water-limited environment, regulation of vegetation cover pattern on runoff and soil erosion in arid and semiarid environment was addressed widely. In tropical and subtropical environment, patchy vegetation cover pattern also widely occurred in human-dominated landscapes. However, the effect of vegetation cover pattern on runoff generation and sediment yield and its dependence on rainfall characteristics attract little attention, and are unclear. Correspondingly, this study addresses two relevant issues: (1) the rainfall-dependent capacity of vegetation cover pattern to mitigate runoff and soil erosion; (2) rainfall-runoff and rainfall-erosion regimes mitigated by vegetation cover pattern. Eighteen 10 m-by-5 m plots were constructed for the three-year (2015–2017) observation in a humid and red-soil-covered environment in southern China. The results show that vegetation cover pattern affected the response of runoff generation and soil erosion to rainfall. The soil loss was more readily to be regulated by the fraction and spatial pattern of vegetation cover than runoff; the potential of the fraction of vegetation cover in regulating soil loss positively response to rainfall depth and rainfall intensity; and rising rainfall depth led to a weakened relationship between vegetation coverage and runoff volume. Our results illustrated that the increased rainfall intensity promotes the regression relationship between vegetation coverage and runoff volume. In this humid environment, vegetation cover pattern regulates the response of runoff and sediment discharge to rainfall characteristics; and the effectiveness of vegetation cover pattern on regulation runoff and sediment discharge was rainfall-dependent. This study indicates that including connectivity parameters in quantifying the spatial pattern of vegetation may lead to different understanding of the effectiveness of vegetation cover on hydrology and soil erosion.
format	article
author	Chongjun Tang Yu Liu Zhongwu Li Liping Guo Aizhen Xu Jiading Zhao
author_facet	Chongjun Tang Yu Liu Zhongwu Li Liping Guo Aizhen Xu Jiading Zhao
author_sort	Chongjun Tang
title	Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China
title_short	Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China
title_full	Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China
title_fullStr	Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China
title_full_unstemmed	Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China
title_sort	effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern china
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/d7eb4538515e4cb9b51416bf84d0a660
work_keys_str_mv	AT chongjuntang effectivenessofvegetationcoverpatternonregulatingsoilerosionandrunoffgenerationinredsoilenvironmentsouthernchina AT yuliu effectivenessofvegetationcoverpatternonregulatingsoilerosionandrunoffgenerationinredsoilenvironmentsouthernchina AT zhongwuli effectivenessofvegetationcoverpatternonregulatingsoilerosionandrunoffgenerationinredsoilenvironmentsouthernchina AT lipingguo effectivenessofvegetationcoverpatternonregulatingsoilerosionandrunoffgenerationinredsoilenvironmentsouthernchina AT aizhenxu effectivenessofvegetationcoverpatternonregulatingsoilerosionandrunoffgenerationinredsoilenvironmentsouthernchina AT jiadingzhao effectivenessofvegetationcoverpatternonregulatingsoilerosionandrunoffgenerationinredsoilenvironmentsouthernchina
_version_	1718405693959045120

Effectiveness of vegetation cover pattern on regulating soil erosion and runoff generation in red soil environment, southern China

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