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Stable isotope analysis of soil and plant water in a pair of natural grassland and understory of planted forestland on the Chinese Loess Plateau

文献类型：期刊论文

作者Liu, Jinzhao1,2; Wu, Huawu1,3; Cheng, Yao1; Jin, Zhao1,2,4; Hu, Jing1
刊名AGRICULTURAL WATER MANAGEMENT
出版日期2021-04-30
卷号249页码:10
关键词Stable water isotopes Ecohydrological processes The Chinese Loess Plateau Grassland Forestland
ISSN号0378-3774
DOI10.1016/j.agwat.2021.106800
通讯作者Liu, Jinzhao(liujinzhao@ieecas.cn) ; Jin, Zhao(Jinzhao@ieecas.cn)
英文摘要A series of revegetation programs have been carried out since 1950s, and a large area of cropland has been converted to forestland and grassland through tree plantation and natural vegetation restoration. However, it is still inadequately addressed how plant revegetation changes the characteristics of soil-plant waters. In this study, we compared delta O-18 and delta H-2 values of different waters from precipitation, soil water, root water, and leaf water between different herbaceous plants (understory of the planted forestland and natural recovered grassland) in two neighboring catchments. There was a temporal consistence in delta O-18 and delta H-2 among different waters, showing that root water and leaf water could record well the signals of soil water and precipitation, followed by temperature change over month. A series of water line equations between delta O-18 and delta H-2 indicate that herbaceous plants have higher soil evaporation for grassland than understory of the forestland, instead of leaf transpiration. Moreover, our study found significant differences in delta O-18 and delta H-2 between root water and soil water, probably associated with isotopic fractionation during root water uptake, leaf surface water pools and ecohydrological separation. This study will be helpful to better understand the effect of plant revegetation programmes (planted forestland catchment versus natural grassland catchment) on ecohydrological processes on the Chinese Loess Plateau.
资助项目Chinese Academy of Sciences[XAB2019B02] ; Chinese Academy of Sciences[ZDBS-LY-DQC033] ; Chinese Academy of Sciences[QYZDY-SSW-DQC001] ; National Natural Science Foundation of China[41420104008] ; National Natural Science Foundation of China[41790444] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40000000] ; State Key Laboratory of Loess and Quaternary Geology[SKLLQG1926]
WOS研究方向Agriculture ; Water Resources
语种英语
WOS记录号WOS:000632323300006
出版者ELSEVIER
资助机构Chinese Academy of Sciences ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; State Key Laboratory of Loess and Quaternary Geology
源URL[http://ir.ieecas.cn/handle/361006/16207]  
专题地球环境研究所_古环境研究室
第四纪科学与全球变化卓越创新中心
通讯作者Liu, Jinzhao; Jin, Zhao
作者单位1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
2.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
3.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Key Lab Watershed Geog Sci, Nanjing 210008, Peoples R China
4.Beijing Normal Univ, Interdisciplinary Res Ctr Earth Sci Frontier, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Jinzhao,Wu, Huawu,Cheng, Yao,et al. Stable isotope analysis of soil and plant water in a pair of natural grassland and understory of planted forestland on the Chinese Loess Plateau[J]. AGRICULTURAL WATER MANAGEMENT,2021,249:10.
APA Liu, Jinzhao,Wu, Huawu,Cheng, Yao,Jin, Zhao,&Hu, Jing.(2021).Stable isotope analysis of soil and plant water in a pair of natural grassland and understory of planted forestland on the Chinese Loess Plateau.AGRICULTURAL WATER MANAGEMENT,249,10.
MLA Liu, Jinzhao,et al."Stable isotope analysis of soil and plant water in a pair of natural grassland and understory of planted forestland on the Chinese Loess Plateau".AGRICULTURAL WATER MANAGEMENT 249(2021):10.

入库方式： OAI收割

来源：地球环境研究所

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