气候变化领域集成服务门户(CCPortal): Kobresia pygmaea meadows as disclimax communities in the same geographic and climatic environments in Qinghai-Tibet Plateau, China

CCPortal

DOI	10.1093/jpe/rtad010
	Kobresia pygmaea meadows as disclimax communities in the same geographic and climatic environments in Qinghai-Tibet Plateau, China
	Lin, Li; Cao, Guangmin; Xu, Xingliang; Zhang, Fawei; Huang, Junjie; Fan, Bo; Li, Bencuo; Li, Yikang
发表日期	2023
ISSN	1752-9921
EISSN	1752-993X
卷号	16 期号:5
英文摘要	Kobresia meadows are the main pastures for animal husbandry on the Qinghai-Tibet Plateau, and may represent alternative steady states associated with different grazing intensities. The ability of other plant communities to succeed these meadows remains unclear. In this study, the historical data of plant communities were analyzed in terms of the soil profile, and the present characteristics were identified by investigating their plant communities. Four types of steady states were identified, corresponding to grazing intensities of >11, 8-11, 5.5-8 and <5.5 sheep/ha. Drought alpine swamp meadows and shrub meadows could succeed to K. pygmaea meadows and K. humilis meadows under overgrazing, and their total biomass and edible biomass (estimated by Gramineae and Cyperaceae) decreased with increasing grazing intensity. The regime shift of the states occurred at a grazing intensity of 8-11 sheep/ha. This value thus represented the threshold of significant change in the production and ecological service function in the Kobresia meadow succession process. In general, increasing grazing intensities can adversely affect the service ability of meadows for livestock production and ecosystem stabilization. Our results revealed the potential degraded succession process of the alpine Kobresia meadow and the succession direction in the restoration process of degraded meadows. Additionally, this study provided a theoretical basis for evaluating the fitness between the livestock bearing capacity and carrying capacity in steady states and academic reference for policy setting pertaining to the utilization of Kobresia meadows in a sustainable development framework.
关键词	plant community succession soil profile features sustainable development ecological stabilization regime shift
英文关键词	PLANT-COMMUNITIES; ALPINE ECOSYSTEM; DEGRADATION; DIVERSITY; SHIFTS
WOS研究方向	Plant Sciences ; Ecology ; Forestry
WOS记录号	WOS:000992465400002
来源期刊	JOURNAL OF PLANT ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/283210
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Chinese Academy of Sciences; Institute of Geographic Sciences & Natural Resources Research, CAS; Henan Polytechnic University
推荐引用方式 GB/T 7714	Lin, Li,Cao, Guangmin,Xu, Xingliang,et al. Kobresia pygmaea meadows as disclimax communities in the same geographic and climatic environments in Qinghai-Tibet Plateau, China[J],2023,16(5).
APA	Lin, Li.,Cao, Guangmin.,Xu, Xingliang.,Zhang, Fawei.,Huang, Junjie.,...&Li, Yikang.(2023).Kobresia pygmaea meadows as disclimax communities in the same geographic and climatic environments in Qinghai-Tibet Plateau, China.JOURNAL OF PLANT ECOLOGY,16(5).
MLA	Lin, Li,et al."Kobresia pygmaea meadows as disclimax communities in the same geographic and climatic environments in Qinghai-Tibet Plateau, China".JOURNAL OF PLANT ECOLOGY 16.5(2023).