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Effects of vegetation restoration on soil infiltrability and preferential flow in hilly gully areas of the Loess Plateau, China

文献类型：期刊论文

作者Qiu, Dexun2,4; Xu, Ruirui2,4; Wu, Changxue3; Mu, Xingmin1,2,3,4; Zhao, Guangju2,3,4; Gao, Peng1,2,3,4
刊名CATENA
出版日期2023-02-01
卷号221页码:13
ISSN号0341-8162
关键词Infiltration capacity Preferential flow Land use change Vegetation restoration Soil properties Loess Plateau
DOI10.1016/j.catena.2022.106770
通讯作者Mu, Xingmin(xmmu@ms.iswc.ac.cn) ; Gao, Peng(gaopeng@ms.iswc.ac.cn)
英文摘要Soil infiltration plays a critical role in soil hydrological processes. Land use/cover changes are generally considered to influence soil infiltration. However, the effect of long-term vegetation restoration on the soil infiltration capacity and infiltration pattern is poorly understood. In the present study, we analyzed the infil-tration capacity with a double ring infiltrometer and detected the degree of preferential flow using a dye tracer in a typical loess hilly gully catchment of China. Additionally, we identified the relationships between soil char-acteristics and infiltration capacity and preferential flow. The results showed that (1) converting cropland to forest, shrubland and grassland generally enhanced the soil infiltration capacity. Compared with cropland, the steady-state infiltration rate (SIR) and saturated hydraulic conductivity (Ks) increased by 135 % and 155 % in shrubland, by 76 % and 91 % in forest, and by 22 % and 23 % in grassland. (2) Land use changes markedly increased the degree of preferential flow, following the order of shrubland > forest > grassland > cropland. (3) The decline in soil moisture (SM) and bulk density (BD) and the increase in total porosity (TP), macroporosity (MP) and soil organic matter (SOM) could cause higher infiltration capacity and preferential flow. SM and TP were the dominant factors affecting soil infiltrability, while MP was the greatest contributor to variations in preferential flow. Our findings demonstrated that vegetation restoration had a positive impact on soil infiltra-bility and preferential flow. This effect should be considered when assessing the influence of vegetation resto-ration on water resources in the Loess Plateau and other arid and semiarid regions.
WOS关键词INFILTRATION CAPACITY ; HYDRAULIC-PROPERTIES ; WATER INFILTRATION ; DYE TRACER ; RAINFALL ; IMPACT ; SUSCEPTIBILITY ; AFFORESTATION ; TRANSPORT ; SERVICES
资助项目National Natural Science Foundation of China ; National Key Research and Development Program of China ; [42277354] ; [42077075] ; [2017YFE0118100-1]
WOS研究方向Geology ; Agriculture ; Water Resources
语种英语
出版者ELSEVIER
WOS记录号WOS:000907191600001
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/188790]  
专题中国科学院地理科学与资源研究所
通讯作者Mu, Xingmin; Gao, Peng
作者单位1.Northwest A&F Univ, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Shaanxi, Peoples R China
4.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Qiu, Dexun,Xu, Ruirui,Wu, Changxue,et al. Effects of vegetation restoration on soil infiltrability and preferential flow in hilly gully areas of the Loess Plateau, China[J]. CATENA,2023,221:13.
APA Qiu, Dexun,Xu, Ruirui,Wu, Changxue,Mu, Xingmin,Zhao, Guangju,&Gao, Peng.(2023).Effects of vegetation restoration on soil infiltrability and preferential flow in hilly gully areas of the Loess Plateau, China.CATENA,221,13.
MLA Qiu, Dexun,et al."Effects of vegetation restoration on soil infiltrability and preferential flow in hilly gully areas of the Loess Plateau, China".CATENA 221(2023):13.

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来源：地理科学与资源研究所

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