干旱区生态环境知识资源中心(Arid): Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina

Arid

DOI	10.1016/j.jaridenv.2023.104983
	Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina
	Sardina, Leticia Castro; Irisarri, Gonzalo; Texeira, Marcos
通讯作者	Sardiña, LC
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2023
卷号	214
英文摘要	In the Andes of southern South America, wet meadows are much more productive than nearby arid areas. Human activities, along with climate variations may reduce the productivity of these ecosystems. However, we do not know what the relative effect of climate and human activities on their degradation status is. Here, we first quantified the degradation extent through the temporal trend of normalized difference vegetation index (NDVI), a proxy of productivity, from 1999 to 2017. We did it in 736 wet meadow areas inserted in three nearby zones with contrasting land management. Second, we analyzed the relationship between NDVI and a large-scale mode of climate variability (El Nin similar to o Southern Oscillation, ENSO) and regional climate variables (precipitation and temperature) through a structured climate model. Finally, we evaluated human activities' effects through the temporal trends in the residuals of the climate model. Independently of land management, NDVI trends were mainly negative and affected 56% of the wet meadow areas. The climate model indicated that NDVI increased under La Nin similar to a, cool and wet years. Regarding land management, the degradation level was similar across the contrasted land management. Our results suggest that climate factors rather than human activities influenced the degradation process in these areas.
英文关键词	ENSO Human impact NDVI trends RESTREND Wet meadows Open pit mining
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000979507500001
WOS关键词	NET PRIMARY PRODUCTION ; PLANT-PRODUCTION ; ALPINE MEADOW ; PRECIPITATION ; IMPACT ; FLUCTUATIONS ; VEGETATION ; PATAGONIA ; ENSO
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397149
推荐引用方式 GB/T 7714	Sardina, Leticia Castro,Irisarri, Gonzalo,Texeira, Marcos. Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina[J],2023,214.
APA	Sardina, Leticia Castro,Irisarri, Gonzalo,&Texeira, Marcos.(2023).Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina.JOURNAL OF ARID ENVIRONMENTS,214.
MLA	Sardina, Leticia Castro,et al."Climate factors rather than human activities controlled NDVI trends across wet meadow areas in the Andes Centrales of Argentina".JOURNAL OF ARID ENVIRONMENTS 214(2023).