气候变化领域集成服务门户(CCPortal): Characterization of the spatial distribution of plateau pika burrows along an alpine grassland degradation gradient on the Qinghai-Tibet Plateau

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DOI	10.1002/ece3.8176
	Characterization of the spatial distribution of plateau pika burrows along an alpine grassland degradation gradient on the Qinghai-Tibet Plateau
	Qian, Dawen; Li, Qian; Fan, Bo; Lan, Yuting; Cao, Guangmin
通讯作者	Qian, DW (通讯作者)，Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Cold Reg Restorat Ecol, 23 Xinning Rd, Xining 810008, Qinghai, Peoples R China.
发表日期	2021
ISSN	2045-7758
起始页码	14905
结束页码	14915
卷号	11 期号:21
英文摘要	Plateau pika burrows are common feature of degraded grassland in the Qinghai-Tibet Plateau (QTP) and serve as an important indicator of pika activity and grassland degradation. However, the current understanding of the spatial pattern changes of pika burrows and their critical thresholds across a degradation gradient in alpine grassland is deficient. In this study, we investigated and quantified changes in the spatial pattern of plateau pika burrows under typical degraded alpine shrub meadows in the northeastern QTP using an unmanned aerial vehicle and landscape pattern metrics. The degradation of the alpine shrub meadow leads to a change in landscape pattern from a two-layered structure of alpine shrub and alpine meadow to a mosaic of alpine meadow and bare soil, with plateau pika burrows scattered throughout. Moderate degradation is the tipping point for changes in surface landscape patterns, followed by the disappearance of alpine shrub, the retreat of alpine meadows and the encroachment of bare soil, and the increasing density and size of pika burrows. The area characteristics of alpine meadows have influenced changes in the spatial pattern of pika burrow, and maintaining its proportional area is a vital measure to control the threat of pika burrows to pastures. The results of this paper provide a methodological reference and guidance for the sustainable utilization of grassland on the QTP.
关键词	OCHOTONA-CURZONIAE MEADOW CARBON DISTURBANCE MANAGEMENT DENSITIES BIOMASS
英文关键词	alpine grassland; landscape pattern; pika burrow; Qinghai-Tibet Plateau; UAV
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Ecology ; Evolutionary Biology
WOS记录号	WOS:000704913400001
来源期刊	ECOLOGY AND EVOLUTION
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253648
作者单位	[Qian, Dawen; Li, Qian; Fan, Bo; Lan, Yuting; Cao, Guangmin] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Cold Reg Restorat Ecol, 23 Xinning Rd, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Qian, Dawen,Li, Qian,Fan, Bo,et al. Characterization of the spatial distribution of plateau pika burrows along an alpine grassland degradation gradient on the Qinghai-Tibet Plateau[J]. 中国科学院西北生态环境资源研究院,2021,11(21).
APA	Qian, Dawen,Li, Qian,Fan, Bo,Lan, Yuting,&Cao, Guangmin.(2021).Characterization of the spatial distribution of plateau pika burrows along an alpine grassland degradation gradient on the Qinghai-Tibet Plateau.ECOLOGY AND EVOLUTION,11(21).
MLA	Qian, Dawen,et al."Characterization of the spatial distribution of plateau pika burrows along an alpine grassland degradation gradient on the Qinghai-Tibet Plateau".ECOLOGY AND EVOLUTION 11.21(2021).