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DOI	10.1007/s10040-018-1901-4
	Complex interactions between climate change, sanitation, and groundwater quality: a case study from Ramotswa, Botswana
	McGill, Bonnie M.1,2,3; Altchenko, Yvan 4,5,6; Hamilton, Stephen K.1,2,7; Kenabatho, Piet K.8; Sylvester, Steven R.9; Villholth, Karen G.4
通讯作者	McGill, Bonnie M.
来源期刊	HYDROGEOLOGY JOURNAL
ISSN	1431-2174
EISSN	1435-0157
出版年	2019
卷号	27 期号:3 页码:997-1015
英文摘要	Groundwater quantity and quality may be affected by climate change through intricate direct and indirect mechanisms. At the same time, population growth and rapid urbanization have made groundwater an increasingly important source of water for multiple uses around the world, including southern Africa. The present study investigates the coupled human and natural system (CHANS) linking climate, sanitation, and groundwater quality in Ramotswa, a rapidly growing peri-urban area in the semi-arid southeastern Botswana, which relies on the transboundary Ramotswa aquifer for water supply. Analysis of long-term rainfall records indicated that droughts like the one in 2013-2016 are increasing in likelihood in the area due to climate change. Key informant interviews showed that due to the drought, people increasingly used pit latrines rather than flush toilets. Nitrate, fecal coliforms, and caffeine analyses of Ramotswa groundwater revealed that human waste leaching from pit latrines is the likely source of nitrate pollution. The results in conjunction indicate critical indirect linkages between climate change, sanitation, groundwater quality, and water security in the area. Improved sanitation, groundwater protection and remediation, and local water treatment would enhance reliable access to water, de-couple the community from reliance on surface water and associated water shortage risks, and help prevent transboundary tension over the shared aquifer.
英文关键词	Climate change Nitrate Socioecology Botswana Sub-Saharan Africa
类型	Article
语种	英语
国家	USA ; South Africa ; France ; Botswana
开放获取类型	Green Published, hybrid
收录类别	SCI-E
WOS记录号	WOS:000467483100012
WOS关键词	SUB-SAHARAN AFRICA ; WATER SECURITY ; COUPLED HUMAN ; PIT LATRINES ; WASTE-WATER ; NITRATE ; CAFFEINE ; PHARMACEUTICALS ; SYSTEMS ; DENITRIFICATION
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216175
作者单位	1.Michigan State Univ, Dept Integrat Biol, Hickory Corners, MI 49060 USA; 2.Michigan State Univ, Kellogg Biol Stn, Hickory Corners, MI 49060 USA; 3.Univ Kansas, Kansas Biol Survey, Lawrence, KS 66045 USA; 4.Int Water Management Inst Southern Africa, Pretoria, South Africa; 5.Minist Agr Agroalimentaire & Foret, Paris, France; 6.Univ Paris 06, Lab METIS, UMR UPMC CNRS 7619, Paris, France; 7.Cary Inst Ecosyst Studies, Millbrook, NY USA; 8.Univ Botswana, Dept Environm Sci, Gaborone, Botswana; 9.Washington State Univ, Vancouver Dept Mol Biosci, Washington, DC USA
推荐引用方式 GB/T 7714	McGill, Bonnie M.,Altchenko, Yvan,Hamilton, Stephen K.,et al. Complex interactions between climate change, sanitation, and groundwater quality: a case study from Ramotswa, Botswana[J],2019,27(3):997-1015.
APA	McGill, Bonnie M.,Altchenko, Yvan,Hamilton, Stephen K.,Kenabatho, Piet K.,Sylvester, Steven R.,&Villholth, Karen G..(2019).Complex interactions between climate change, sanitation, and groundwater quality: a case study from Ramotswa, Botswana.HYDROGEOLOGY JOURNAL,27(3),997-1015.
MLA	McGill, Bonnie M.,et al."Complex interactions between climate change, sanitation, and groundwater quality: a case study from Ramotswa, Botswana".HYDROGEOLOGY JOURNAL 27.3(2019):997-1015.