气候变化领域集成服务门户(CCPortal): Groundwater abstraction and woodland mortality: Lessons from Namibia

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DOI	10.1016/j.jaridenv.2024.105154
	Groundwater abstraction and woodland mortality: Lessons from Namibia
	Brunette, Elbe; Wang, Lixin; Wassenaar, Theo
发表日期	2024
ISSN	0140-1963
EISSN	1095-922X
起始页码	222
卷号	222
英文摘要	In response to escalating worldwide groundwater dependence amid climate change, accurate estimation of sustainable groundwater yield becomes crucial. This study investigated the impact of groundwater abstraction on tree mortality in Namibia. We compared tree mortality around production boreholes with monitoring boreholes and we correlated groundwater decline rates with tree mortality, establishing a model from which we derived a groundwater decline rate range limit. Ana tree mortality was significantly higher (P = 0.01) around production boreholes (13.3%) than around monitoring boreholes (0%). In the dammed Swakop River, Ana tree mortality correlated with decline rates (r(S) = 0.64, P < 0.01). The study suggests that decline rates of above 0.2-0.23 cm day(-1) may cause elevated mortality (3-7%) and should not be sustained for extended periods. Rates exceeding 0.5 cm day(-1) should be avoided, while monitoring is recommended for rates between 0.23 and 0.5 cm day(-1). Woodlands in rivers with altered flood frequencies may be more sensitive to groundwater abstraction than previously thought. The study's methods offer a universal framework for refining sustainable yield calculations worldwide.
英文关键词	Ecosystem sensitivity; Mortality; Phreatophyte; Withdrawal; Sustainable yield; Woodland
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology ; Environmental Sciences
WOS记录号	WOS:001224362800001
来源期刊	JOURNAL OF ARID ENVIRONMENTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/293432
作者单位	Namibia University of Science & Technology; Indiana University System; Indiana University-Purdue University Indianapolis
推荐引用方式 GB/T 7714	Brunette, Elbe,Wang, Lixin,Wassenaar, Theo. Groundwater abstraction and woodland mortality: Lessons from Namibia[J],2024,222.
APA	Brunette, Elbe,Wang, Lixin,&Wassenaar, Theo.(2024).Groundwater abstraction and woodland mortality: Lessons from Namibia.JOURNAL OF ARID ENVIRONMENTS,222.
MLA	Brunette, Elbe,et al."Groundwater abstraction and woodland mortality: Lessons from Namibia".JOURNAL OF ARID ENVIRONMENTS 222(2024).