气候变化领域集成服务门户(CCPortal): Vegetation-soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai-Tibet Plateau

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DOI	10.3389/fenvs.2023.1119605
	Vegetation-soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai-Tibet Plateau
	Zhang, Hongwei; Tian, Lihui; Hasi, Eerdun; Zhang, Dengshan; Wu, Wangyang
发表日期	2023
EISSN	2296-665X
卷号	11
英文摘要	Different types of dunes cause habitat differences, which can affect vegetation growth. In turn, water utilized by vegetation leads to the differential distribution of soil moisture in different dunes. However, vegetation-soil dynamics in the alpine desert of the Qinghai-Tibet Plateau remain poorly understood. We chose the largest section of desert along the eastern shore of Qinghai Lake as a study area to test the hypotheses that plant community characteristics and soil physicochemical properties show differences in different sand-binding communities, in addition to soil moisture content, based on methods of field investigations and in situ observations. The main results were as follows:1) Plant community species diversity and herb coverage increased with the stabilization status of dunes; meanwhile, coverage increased with the age of the added artificial semi-fixed dunes. 2) Surface deposits were mainly composed of medium sand, leading to low organic matter and nutrient content in the study area; this being different from other deserts in northern China. 3) Soil moisture's seasonal variation was consistent with rainfall seasonality and lacked significant interannual differences, while its vertical distribution was influenced by precipitation infiltration. 4) Soil crust forms beneath specific species, such as leguminous plants in the study area, which should be effective at preventing wind erosion. Our findings will facilitate a mechanistic understanding of plant-soil-water relationships in alpine deserts and provide timely information for screening introduced species for enhancing sand-fixation effectiveness.
关键词	vegetation communities soil properties soil moisture sand dunes Qinghai Lake
英文关键词	LOESS PLATEAU; SANDY LAND; SIZE DISTRIBUTION; TENGGER DESERT; RESTORATION; MOISTURE; BASIN; VARIABILITY; CLIMATE; PATTERN
WOS研究方向	Environmental Sciences
WOS记录号	WOS:000942475200001
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283196
作者单位	Beijing Normal University; Qinghai University; East China University of Technology
推荐引用方式 GB/T 7714	Zhang, Hongwei,Tian, Lihui,Hasi, Eerdun,et al. Vegetation-soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai-Tibet Plateau[J],2023,11.
APA	Zhang, Hongwei,Tian, Lihui,Hasi, Eerdun,Zhang, Dengshan,&Wu, Wangyang.(2023).Vegetation-soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai-Tibet Plateau.FRONTIERS IN ENVIRONMENTAL SCIENCE,11.
MLA	Zhang, Hongwei,et al."Vegetation-soil dynamics in an alpine desert ecosystem of the Qinghai Lake watershed, northeastern Qinghai-Tibet Plateau".FRONTIERS IN ENVIRONMENTAL SCIENCE 11(2023).