气候变化领域集成服务门户(CCPortal): An interplay of soil salinization and groundwater degradation threatening coexistence of oasis-desert ecosystems

CCPortal

DOI	10.1016/j.scitotenv.2021.150599
	An interplay of soil salinization and groundwater degradation threatening coexistence of oasis-desert ecosystems
	Yin, Xinwei; Feng, Qi; Li, Yan; Deo, Ravinesh C.; Liu, Wei; Zhu, Meng; Zheng, Xinjun; Liu, Ran
发表日期	2022
ISSN	0048-9697
EISSN	1879-1026
卷号	806
英文摘要	In salt-affected and groundwater-fed oasis-desert systems, water and salt balance is critically important for stable coexistence of oasis-desert ecosystems, especially in the context of anthropogenic-induced over-development and perturbations due to climate variability that affects the sustainability of human-natural systems. Here, an investigation of the spatio-temporal variability of soil salinity and groundwater dynamics across four different hydrological regions in oasis-desert system is performed. An evaluation of the effects of soil salinization and groundwater degradation interplays on the coexistence of oasis-desert ecosystems in northwestern China is undertaken over 1995-2020, utilizing comprehensive measurements and ecohydrological modelling framework. We note that the process of salt migration and accumulation across different landscapes in oasis-desert system is reshaping, with soil salinization accelerating especially in water-saving agricultural irrigated lands. The continuous decline in groundwater tables, dramatic shifts in groundwater flow patterns and significant degradation of groundwater quality are occurring throughout the watershed. Worse so, a clear temporal-spatial relationship between soil salinization and groundwater degradation appearing to exacerbate the regional water-salt imbalance. Also, the eco-environmental flows are reaching to their limit with watershed closures, although these progressions were largely hidden by regional precipitation and streamflow variability. The oasis-desert ecosystems tend to display bistable dynamics with two preferential configurations of bare and vegetated soils, and soil salinization and groundwater degradation interplays are causing catastrophic shift in the oasis-desert ecosystems. The results highlight the importance of regional adaptive water and salt management to maintain the coexistence of oasis-desert ecosystems in arid areas. (c) 2021 Elsevier B.V. All rights reserved.
英文关键词	Oasis-desert ecosystems; Soil salinization; Groundwater dynamics; Interplay; Adaptive water-salt management
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS关键词	INLAND RIVER-BASINS ; DRYLAND SALINITY ; HEIHE RIVER ; IRRIGATED AGRICULTURE ; SURFACE-WATER ; LAND-USE ; EVOLUTION ; RECHARGE ; DYNAMICS ; FLOW
WOS记录号	WOS:000707641100003
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239420
作者单位	[Yin, Xinwei; Feng, Qi; Liu, Wei; Zhu, Meng] Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Northwest Inst Environm & Resources, Lanzhou 730000, Peoples R China; [Yin, Xinwei] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Li, Yan] Zhejiang A&F Univ, State Key Lab Subtrop Silviculture, Hangzhou 311300, Peoples R China; [Li, Yan; Zheng, Xinjun; Liu, Ran] Chinese Acad Sci, Fukang Stn Desert Ecol, Fukang 831505, Xinjiang, Peoples R China; [Deo, Ravinesh C.] Univ Southern Queensland, Sch Sci, Ctr Appl Climate Sci, Ctr Sustainable Agr Syst,Inst Life Sci & Environm, Springfield 4300, Australia; [Zheng, Xinjun; Liu, Ran] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
推荐引用方式 GB/T 7714	Yin, Xinwei,Feng, Qi,Li, Yan,et al. An interplay of soil salinization and groundwater degradation threatening coexistence of oasis-desert ecosystems[J]. 中国科学院西北生态环境资源研究院,2022,806.
APA	Yin, Xinwei.,Feng, Qi.,Li, Yan.,Deo, Ravinesh C..,Liu, Wei.,...&Liu, Ran.(2022).An interplay of soil salinization and groundwater degradation threatening coexistence of oasis-desert ecosystems.SCIENCE OF THE TOTAL ENVIRONMENT,806.
MLA	Yin, Xinwei,et al."An interplay of soil salinization and groundwater degradation threatening coexistence of oasis-desert ecosystems".SCIENCE OF THE TOTAL ENVIRONMENT 806(2022).