The Kobresia pygmaea ecosystem of the Tibetan highlands - Origin, functioning and degradation of the world's largest pastoral alpine ecosystem Kobresia pastures of Tibet

doi:10.1016/j.scitotenv.2018.08.164

	The Kobresia pygmaea ecosystem of the Tibetan highlands - Origin, functioning and degradation of the world's largest pastoral alpine ecosystem Kobresia pastures of Tibet
	Miehe, Georg 1; Schleuss, Per-Marten 2; Seeber, Elke 3; Babel, Wolfgang 4,5; Biermann, Tobias 6; Braendle, Martin 7; Chen, Fahu 8; Coners, Heinz 9; Foken, Thomas 5; Gerken, Tobias 10
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-01-15
卷号	648 页码:754-771
关键词	Alpine meadow Alpine plant ecology Carbon cycle and sequestration Carex parvula Grazing ecology Hydrological cycle Nutrient cycles Paleo-environment Qinghai-Tibet Plateau Rangeland management
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.08.164
通讯作者	Opgenoorth, Lars(opgenoorth@uni-marburg.de)
英文摘要	With 450,000 km(2) Kobresia (syn. Carex) pygmaea dominated pastures in the eastern Tibetan highlands are the world's largest pastoral alpine ecosystemforming a durable turf cover at 3000-6000 m a.s.l. Kobresia's resilience and competitiveness is based on dwarf habit, predominantly below-ground allocation of photo assimilates, mixture of seed production and clonal growth, and high genetic diversity. Kobresia growth is co-limited by livestock-mediated nutrient withdrawal and, in the drier parts of the plateau, low rainfall during the short and cold growing season. Overstocking has caused pasture degradation and soil deterioration over most parts of the Tibetan highlands and is the basis for this man-made ecosystem. Natural autocyclic processes of turf destruction and soil erosion are initiated through polygonal turf cover cracking, and accelerated by soil-dwelling endemic small mammals in the absence of predators. The major consequences of vegetation cover deterioration include the release of large amounts of C, earlier diurnal formation of clouds, and decreased surface temperatures. These effects decrease the recovery potential of Kobresia pastures and make them more vulnerable to anthropogenic pressure and climate change. Traditional migratory rangeland management was sustainable over millennia, and possibly still offers the best strategy to conserve and possibly increase C stocks in the Kobresia turf. (C) 2018 The Authors. Published by Elsevier B.V.
资助项目	German Research Foundation[DFG SPP 1372] ; Volkswagen Foundation [Marburg - Lhasa University Partnership Program] ; German Federal Ministry of Education and Research [BMBF-CAME framework] ; Ministry of Science and Technology of the People's Republic of China[2010DFA34610]
WOS关键词	LAST GLACIAL MAXIMUM ; PERMANENT HUMAN OCCUPATION ; CARBON-DIOXIDE ; PALEOENVIRONMENTAL IMPLICATIONS ; CLIMATE VARIABILITY ; INORGANIC NITROGEN ; OCHOTONA-CURZONIAE ; PLANT-COMMUNITIES ; HUMAN HABITATION ; SOIL-MOISTURE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000447805500070
资助机构	German Research Foundation ; Volkswagen Foundation [Marburg - Lhasa University Partnership Program] ; German Federal Ministry of Education and Research [BMBF-CAME framework] ; Ministry of Science and Technology of the People's Republic of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/52711]
专题	中国科学院地理科学与资源研究所
通讯作者	Opgenoorth, Lars
作者单位	1.Philipps Univ Marburg, Fac Geog, Marburg, Germany 2.Univ Bayreuth, Soil Biogeochem, Bayreuth, Germany 3.Ernst Moritz Arndt Univ Greifswald, Inst Bot & Landscape Ecol, Greifswald, Germany 4.Univ Bayreuth, Micrometeorol Grp, Bayreuth, Germany 5.Univ Bayreuth, Bayreuth Ctr Ecol & Environm Res, Bayreuth, Germany 6.Lund Univ, Ctr Environm & Climate Res, Lund, Sweden 7.Philipps Univ Marburg, Dept Ecol, Marburg, Germany 8.Lanzhou Univ, MOE Key Lab West Chinas Environm Syst, Sch Earth & Environm Sci, Lanzhou, Gansu, Peoples R China 9.Univ Gottingen, Dept Plant Ecol & Ecosyst Res, Gottingen, Germany 10.Montana State Univ, Dept Land Resources & Environm Sci, Bozeman, MT 59717 USA
推荐引用方式 GB/T 7714	Miehe, Georg,Schleuss, Per-Marten,Seeber, Elke,et al. The Kobresia pygmaea ecosystem of the Tibetan highlands - Origin, functioning and degradation of the world's largest pastoral alpine ecosystem Kobresia pastures of Tibet[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,648:754-771.
APA	Miehe, Georg.,Schleuss, Per-Marten.,Seeber, Elke.,Babel, Wolfgang.,Biermann, Tobias.,...&Wesche, Karsten.(2019).The Kobresia pygmaea ecosystem of the Tibetan highlands - Origin, functioning and degradation of the world's largest pastoral alpine ecosystem Kobresia pastures of Tibet.SCIENCE OF THE TOTAL ENVIRONMENT,648,754-771.
MLA	Miehe, Georg,et al."The Kobresia pygmaea ecosystem of the Tibetan highlands - Origin, functioning and degradation of the world's largest pastoral alpine ecosystem Kobresia pastures of Tibet".SCIENCE OF THE TOTAL ENVIRONMENT 648(2019):754-771.