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Evaluating potential groundwater recharge in the unsteady state for deep-rooted afforestation in deep loess deposits

文献类型：期刊论文

作者Chen, Guangjie6,7; Meng, Tingfang5; Wu, Wenjie6,7; Si, Bingcheng3; Li, Min6,7; Liu, Boyang6,7; Wu, Shufang6,7; Feng, Hao4,5,7; Siddique, Kadambot H. M.1,2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2023-02-01
卷号858页码:11
ISSN号0048-9697
关键词Groundwater recharge An unsteady state Water age Land -use change
DOI10.1016/j.scitotenv.2022.159837
通讯作者Feng, Hao(nercwsi@vip.sina.com)
英文摘要Groundwater recharge reduces due to high transpiration from shallow-rooted to deep-rooted afforestation. However, reaching a steady state in recharge process is challenging and no methods are available for assessing potential ground-water recharge under unsteady state. Hence, this study developed a new method to quantify groundwater recharge in the unsteady state by (1) calculating the water age (A2) at maximum root depth (D2) for deep-rooted afforestation using the chloride accumulative age method; (2) determining the soil depth (D1) corresponding to A2 under shallow-rooted vegetation using the multi-year average pore water velocity multiplied by A2; (3) calculating the reduc-tion in groundwater recharge (Delta R) from shallow-to deep-rooted afforestation as the depth difference multiplied by the average water content between D1 and D2, divided by stand age. The average groundwater recharge for deep-rooted afforestation is equal to the average annual groundwater recharge under shallow-rooted vegetation minus Delta R. Soil cores with >25 m soil profiles below four land-use types of Hippophae rhamnoides Linn. (H. rhamnoides), Platycladus orientalis (L.) Franco (P. orientalis), Robinia pseudoacacia L. (R. pseudoacacia), and grassland were collected to measure soil water content, root distribution, and chloride and tritium contents. The results revealed that: (1) maximum root depths were 11.0 +/- 0.5, 20.2 +/- 1.2, and 22.6 +/- 0.8 m, with soil water deficits of 373.48, 823.65, and 1847.92 mm under H. rhamnoides, P. orientalis, and R. pseudoacacia, respectively; (2) groundwater recharge following land-use change has not reached a steady state; (3) an average annual groundwater recharge was 89.12 mm yr-1
WOS关键词DRIED SOIL LAYERS ; LAND-USE ; APPLE-TREES ; GLOBAL SYNTHESIS ; WATER MOVEMENT ; CRITICAL ZONE ; PLATEAU ; CHINA ; CLIMATE ; DYNAMICS
资助项目National Key R&D Program of China[2021YFD1900700] ; National Natural Science Foundation of China (NSFC)[41877017] ; National Natural Science Foundation of China (NSFC)[41977064] ; Fundamental Research Funds for the Central Universities[2452021158] ; 111 Project[B12007]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:000898763000015
资助机构National Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Fundamental Research Funds for the Central Universities ; 111 Project
源URL[http://ir.igsnrr.ac.cn/handle/311030/188699]  
专题中国科学院地理科学与资源研究所
通讯作者Feng, Hao
作者单位1.Univ Western Australia, Sch Agr & Environm, LB 5005, Perth, WA 6001, Australia
2.Univ Western Australia, UWA Inst Agr, LB 5005, Perth, WA 6001, Australia
3.Univ Saskatchewan, Dept Soil Sci, Saskatoon, SK S7N 5A8, Canada
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
5.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Shaanxi, Peoples R China
6.Northwest A&F Univ, Coll Water Resources & Architectural Engn, Yangling 712100, Shaanxi, Peoples R China
7.Northwest A&F Univ, Key Lab Agr Soil & Water Engn Arid & Semiarid Area, Minist Educ, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Guangjie,Meng, Tingfang,Wu, Wenjie,et al. Evaluating potential groundwater recharge in the unsteady state for deep-rooted afforestation in deep loess deposits[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,858:11.
APA Chen, Guangjie.,Meng, Tingfang.,Wu, Wenjie.,Si, Bingcheng.,Li, Min.,...&Siddique, Kadambot H. M..(2023).Evaluating potential groundwater recharge in the unsteady state for deep-rooted afforestation in deep loess deposits.SCIENCE OF THE TOTAL ENVIRONMENT,858,11.
MLA Chen, Guangjie,et al."Evaluating potential groundwater recharge in the unsteady state for deep-rooted afforestation in deep loess deposits".SCIENCE OF THE TOTAL ENVIRONMENT 858(2023):11.

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来源：地理科学与资源研究所

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