干旱区生态环境知识资源中心(Arid): Investigation of environmental and land use impacts in forested permafrost headwaters of the Selenga-Baikal river system, Mongolia - Effects on discharge, water quality and macroinvertebrate diversity

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DOI	10.1016/j.iswcr.2021.06.002
	Investigation of environmental and land use impacts in forested permafrost headwaters of the Selenga-Baikal river system, Mongolia - Effects on discharge, water quality and macroinvertebrate diversity
	Pfeiffer, Martin; Kuestner, Georg; Erdenesukh, Erdenetsetseg; von Tuempling, Wolf; Hofmann, Juergen
通讯作者	Pfeiffer, M (corresponding author), Univ Bayreuth, Dept Biogeog, Univ Str 30, D-95447 Bayreuth, Germany.
来源期刊	INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
ISSN	2095-6339
EISSN	2589-059X
出版年	2021
卷号	9 期号:4 页码:605-619
英文摘要	Headwater streams play a major role for provision of ecosystem services, e.g. drinking water. We investigated a high-altitude headwater catchment of the Kharaa River (including 41 1st-order rivers) to understand the impact of land cover (especially forest cover), environment and human usage on runoff, chemical water quality and macro-invertebrate fauna in a river basin under discontinuous permafrost conditions in an arid, sparsely populated region of Mongolia. To verify our hypotheses that different landuses and environmental impacts in permafrost headwaters influence water quality, we investigated 105 sampling sites, 37 of them at intermittent stream sections without water flow. Discharge was positively impacted by land cover types steppe, grassland and forest and negatively by shrubland, forest burnt by wild fires (indicating a reduction of permafrost) and slope. Water quality was affected by altitude, longitude and latitude, shrub growth and water temperature. Shannon diversity of macroinvertebrates was driven by water temperature, iron content of the water, flow velocity, and subbasin size (adjusted R-2 = 0.54). Sample plots clustered in three groups that differed in water chemistry, macroinvertebrate diversity, species composition and bio-indicators. Our study confirms that steppes and grasslands have a higher contribution to runoff than forests, forest cover has a positive impact on water quality, and diversity of macroinvertebrates is higher in sites with less nutrients and pollutants. The excellent ecological status of the upper reaches of the Kharaa is severely threatened by forest fires and human-induced climate change and urgently needs to be conserved. (C) 2021 International Research and Training Center on Erosion and Sedimentation, China Water & Power Press. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd.
英文关键词	Ecosystem services Ephemeroptera-Plecoptera-Trichoptera (EPT) complex GIS-based analysis IWRM-MoMo project Land use land cover (LULC) Natural reference state Runoff Self-purification capacity Stream water chemistry
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000706193900011
WOS关键词	DRINKING-WATER ; IN-STREAM ; BASIN ; COVER ; RUNOFF ; ASSEMBLAGES ; MANAGEMENT ; DYNAMICS ; SURFACE ; PRECIPITATION
WOS类目	Environmental Sciences ; Soil Science ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363672
作者单位	[Pfeiffer, Martin; Kuestner, Georg] Univ Bayreuth, Dept Biogeog, Univ Str 30, D-95447 Bayreuth, Germany; [Pfeiffer, Martin] UFZ Helmholtz Ctr Environm Res, Dept Aquat Ecosyst Anal & Management ASAM, Bruckstr 3a, D-39114 Magdeburg, Germany; [Pfeiffer, Martin; Erdenesukh, Erdenetsetseg] Natl Univ Mongolia, Dept Ecol, Baga Toiruu 47, Ulaanbaatar 210646, Mongolia; [Kuestner, Georg] Julius Maximilians Univ Wurzburg, Bioctr, Dept Anim Ecol & Trop Biol, D-97074 Wurzburg, Germany; [Erdenesukh, Erdenetsetseg] Natl Dong Hwa Univ, 1,Sec 2,Da Hsueh Rd, Hualien 97401, Taiwan; [von Tuempling, Wolf] UFZ Helmholtz Ctr Environm Res, Cent Lab Water Analyt & Chemometr, Bruckstr 3a, D-39114 Magdeburg, Germany; [Hofmann, Juergen] Bur Integrierten Gewasserschutz BiG, Werner Voss Damm 54 B, D-12101 Berlin, Germany
推荐引用方式 GB/T 7714	Pfeiffer, Martin,Kuestner, Georg,Erdenesukh, Erdenetsetseg,et al. Investigation of environmental and land use impacts in forested permafrost headwaters of the Selenga-Baikal river system, Mongolia - Effects on discharge, water quality and macroinvertebrate diversity[J],2021,9(4):605-619.
APA	Pfeiffer, Martin,Kuestner, Georg,Erdenesukh, Erdenetsetseg,von Tuempling, Wolf,&Hofmann, Juergen.(2021).Investigation of environmental and land use impacts in forested permafrost headwaters of the Selenga-Baikal river system, Mongolia - Effects on discharge, water quality and macroinvertebrate diversity.INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH,9(4),605-619.
MLA	Pfeiffer, Martin,et al."Investigation of environmental and land use impacts in forested permafrost headwaters of the Selenga-Baikal river system, Mongolia - Effects on discharge, water quality and macroinvertebrate diversity".INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH 9.4(2021):605-619.