干旱区生态环境知识资源中心(Arid): 藏北高原植被的分布与环境和空间因素的关系分析

Arid

	藏北高原植被的分布与环境和空间因素的关系分析
其他题名	Vegetation Pattern in Northern Tibet in Relation to Environmental and Geo-spatial Factors
	田莉 ; 张扬建 ; 黄珂 ; 陈宁 ; 陶建 ; 朱军涛
来源期刊	资源与生态学报
ISSN	1674-764X
出版年	2018
卷号	9 期号:5 页码:526-537
中文摘要	环境和空间因素长期以来被视为决定物种组成和分布的关键因素。然而,这些因素对高原植被的影响研究较少。青藏高原拥有一个独特的生态系统和全球环境梯度极端值。我们的目标是量化藏北高寒草地群落的空间分布,揭示植被的物种组成、空间因素和环境因素。在藏北高寒草地分布区,我们沿着1200公里长的梯度建立了63个采样点,采用双向指示种分析(TWINSPAN)和去趋势典范对应分析(DCCA)。调查发现沿横断面可识别的三种类型(高山草甸,高山草原,沙漠草原)中有14个高寒草地种群。分析发现高寒草地的植被组成和空间分布主要由年平均降雨量影响,受温度影响较小。沿着该断面,73.5%植被分布的变化能够被环境变量解释,56.3%被空间因素解释。环境和空间因素分别解释了总变异的29.6%和12.3%,而他们交互作用解释了43.9%。我们的研究结果为藏北高寒草地的生物和环境保护提供强有力的实证依据。
英文摘要	Environmental and Geo-spatial factors have long been considered as crucial determinants of species composition and distributions. However, quantifying the relative contributions of these factors for the alpine ecosystems is lacking. The Tibetan Plateau has a unique ecological environment and vegetation types. Our objectives are to quantify the spatial distributions of plant communities on the Northern Tibetan Alpine grasslands and to explore the relationships between vegetation composition, Geo-spatial factors and environmental factors. We established 63 field plots along a 1200-km gradient on the Northern Tibetan Plateau Alpine Grassland and employed the two-way indicator species analysis (TWINSPAN) and the detrended canonical correspondence analysis (DCCA). Fourteen communities of alpine grassland were identifiable along the transect and consisted of three vegetation types: Alpine meadow, Alpine steppe, and desert steppe. Vegetation composition and spatial distribution appeared to be largely determined by mean annual precipitation and less influenced by temperature. A large fraction (73.5%) of the variation in vegetation distribution was explained by environmental variables along this transect, somewhat less by Geo-spatial factors (56.3%). The environmental and Geo-spatial factors explained 29.6% and 12.3% of the total variation, respectively, while their interaction explained 43.9%. Our findings provide strong empirical evidence for explaining biological and environmental synergetic relationships in Northern Tibet.
中文关键词	高寒草地 ; 环境解说 ; 空间格局 ; 青藏高原 ; 植被组成
英文关键词	alpine grasslands environmental interpretation spatial pattern Tibetan Plateau vegetation composition
语种	英语
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:6337713
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238894
作者单位	1.Lhasa Plateau Ecosystem Research Station, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences;;Qianyanzhou Ecological Research Station, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences;;Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences, ;;, Beijing;;Beijing 100101;;100101; 2.Lhasa Plateau Ecosystem Research Station, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences;;Chinese Academy of Sciences Center for Excellence in Tibetan Plateau Earth Sciences, Key Laboratory of Ecosystem Network Observation and Modeling, Chinese Academy of Sciences;;, ;;, Beijing;;Beijing 100101;;100101; 3.Department of Biological Sciences, Rutgers, The State University of New Jersey, Newark, 07102, USA
推荐引用方式 GB/T 7714	田莉,张扬建,黄珂,等. 藏北高原植被的分布与环境和空间因素的关系分析[J]. 中国科学院地理科学与资源研究所,2018,9(5):526-537.
APA	田莉,张扬建,黄珂,陈宁,陶建,&朱军涛.(2018).藏北高原植被的分布与环境和空间因素的关系分析.资源与生态学报,9(5),526-537.
MLA	田莉,et al."藏北高原植被的分布与环境和空间因素的关系分析".资源与生态学报 9.5(2018):526-537.