干旱区生态环境知识资源中心(Arid): Tree rings: A key ecological indicator for reconstruction of groundwater depth in the lower Tarim River, Northwest China

Arid

DOI	10.1002/eco.2142
	Tree rings: A key ecological indicator for reconstruction of groundwater depth in the lower Tarim River, Northwest China
	Zhou, Honghua 1,2; Chen, Yaning1,2 ; Hao, Xingming 1,2; Zhao, Ying 3; Fang, Gonghuan 1; Yang, Yuhai 1,2
通讯作者	Hao, Xingming
来源期刊	ECOHYDROLOGY
ISSN	1936-0584
EISSN	1936-0592
出版年	2019
卷号	12 期号:8
英文摘要	Groundwater is becoming increasingly important in extremely arid areas due to climate change and human activities. Little is known, however, regarding the long-term dynamics of groundwater due to the lack of long-term historical records of groundwater depth data. In this study, we investigated the relationship between hydrometeorology and tree rings of Populus euphratica (P. euphratica) and the feasibility of reconstructing historical groundwater depths from these tree rings in the lower reaches of the Tarim River, an extremely arid area in China. Tree-ring growth of P. euphratica mainly reflected historical changes in regional water environments (including runoff and shallow groundwater), rather than climatic variables (including temperature, precipitation, relative humidity, and sunshine hours). Groundwater depth constituted the key environmental factor for directly controlling P. euphratica growth. Linear regression models using tree rings were developed to reconstruct historical changes of groundwater depths in the calendar year (January-December) and the growing season (April-August) from 1950 to 2015. Results tracked well with the main hydrological events in the study area. Our findings demonstrate that tree rings of P. euphratica are a key and effective ecological indicator for quantitatively reconstructing and elucidating historical changes of groundwater depth in the lower reaches of the Tarim River. Additionally, the suitable sampling range for establishing tree-ring chronologies of P. euphratica and reconstructing groundwater depth is 0-300 m from the river channel in the lower Tarim River. Taking into consideration the lagged effect between runoff of the Ecological Water Conveyance Project (EWCP), decrease in groundwater and tree growth, we recommend that the optimal implementation time of ecological water conveyance is between the previous September and November in the lower Tarim River. This application will effectively improve the groundwater environment in the current year and ensure the growth of riparian trees.
英文关键词	water environment climate change arid area Populus euphratica elevation difference
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000482712000001
WOS关键词	LOWER REACHES ; POPULUS-EUPHRATICA ; RIPARIAN VEGETATION ; WATER CONVEYANCE ; XINJIANG UYGUR ; GLOBAL CHANGE ; TIME-SERIES ; CLIMATE ; MODEL ; SIMULATION
WOS类目	Ecology ; Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215146
作者单位	1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi, Xinjiang, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China; 3.Ludong Univ, Sch Resource & Environm Engn, Yantai, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Honghua,Chen, Yaning,Hao, Xingming,et al. Tree rings: A key ecological indicator for reconstruction of groundwater depth in the lower Tarim River, Northwest China[J]. 中国科学院新疆生态与地理研究所,2019,12(8).
APA	Zhou, Honghua,Chen, Yaning,Hao, Xingming,Zhao, Ying,Fang, Gonghuan,&Yang, Yuhai.(2019).Tree rings: A key ecological indicator for reconstruction of groundwater depth in the lower Tarim River, Northwest China.ECOHYDROLOGY,12(8).
MLA	Zhou, Honghua,et al."Tree rings: A key ecological indicator for reconstruction of groundwater depth in the lower Tarim River, Northwest China".ECOHYDROLOGY 12.8(2019).