气候变化领域集成服务门户(CCPortal): Impacts of alpine shrub-meadow degradation on its ecosystem services and spatial patterns in Qinghai-Tibetan Plateau

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DOI	10.1016/j.ecolind.2022.108541
	Impacts of alpine shrub-meadow degradation on its ecosystem services and spatial patterns in Qinghai-Tibetan Plateau
	Qian, Dawen; Du, Yangong; Li, Qian; Guo, Xiaowei; Fan, Bo; 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 Xining Rd, Xining 810008, Qinghai, Peoples R China.
发表日期	2022
ISSN	1470-160X
EISSN	1872-7034
卷号	135
英文摘要	Alpine shrub-meadow is an important ecosystem type on the Qinghai-Tibetan Plateau, providing a variety of ecosystem services while supporting the livelihoods of pastoralists. However, there is a clear lack of understanding of the changes in spatial patterns and ecosystem services of alpine shrub-meadow degradation. This study combined aerial photography and ground surveys to investigate and analyse the impact of degradation on the spatial patterns of alpine shrub-meadow and their ecosystem services, and the relationships between the spatial patterns and ecosystem services. The results showed that degradation led to fragmentation and patchiness in alpine shrub-meadow, as evidenced by a decrease in the proportion of shrub and meadow area and average patch size, as well as the complexity of patch boundaries and shapes. Light and moderate degradation reduced all ecosystem services in alpine shrub-meadow, with carbon storage, nutrient supply and water retention services decreased by an average of 27.4%, 17.3% and 13.8% respectively, while forage supply services decreased by 65.2% at heavy degradation, and the reduction in alpine meadow ecosystem services was even greater. Regulating services increased again at heavy degradation due to the accumulation and slow decomposition of plant underground roots, and rodent activity. The spatial patterns of the meadow layer were more closely related to its ecosystem services than the shrub layer, and fragmentation and patchiness were positively related to ecosystem services. Our findings suggest that the impact of degradation on alpine shrub-meadow ecosystem services may be non-linear and that the relationships between spatial patterns and ecosystem services need to be interpreted with caution and should be analysed comprehensively with a wider range of influencing factors. Our results have implications for grassland restoration and ecosystem service management on the Qinghai-Tibetan Plateau.
关键词	GRASSLAND DEGRADATION SMALL-SCALE CLIMATE-CHANGE CO2 FLUXES TRADE-OFFS CARBON PATCHINESS STORAGE BIODIVERSITY RESTORATION
英文关键词	Grassland degradation; UAV images; Landscape pattern metrics; Grassland ecosystem services
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:000761396700003
来源期刊	ECOLOGICAL INDICATORS
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/254208
作者单位	[Qian, Dawen; Du, Yangong; Li, Qian; Guo, Xiaowei; Fan, Bo; Cao, Guangmin] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Cold Reg Restorat Ecol, 23 Xining Rd, Xining 810008, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Qian, Dawen,Du, Yangong,Li, Qian,et al. Impacts of alpine shrub-meadow degradation on its ecosystem services and spatial patterns in Qinghai-Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2022,135.
APA	Qian, Dawen,Du, Yangong,Li, Qian,Guo, Xiaowei,Fan, Bo,&Cao, Guangmin.(2022).Impacts of alpine shrub-meadow degradation on its ecosystem services and spatial patterns in Qinghai-Tibetan Plateau.ECOLOGICAL INDICATORS,135.
MLA	Qian, Dawen,et al."Impacts of alpine shrub-meadow degradation on its ecosystem services and spatial patterns in Qinghai-Tibetan Plateau".ECOLOGICAL INDICATORS 135(2022).