干旱区生态环境知识资源中心(Arid): Identifying trend shifts in vegetation greenness in China from 1982 to 2015

Arid

DOI	10.1002/ldr.4240
	Identifying trend shifts in vegetation greenness in China from 1982 to 2015
	Jiang, Ping; Ding, Wen-guang; Yuan, Ye; Hu, Liequn; Ye, Weifeng
通讯作者	Ding, WG
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2022
卷号	33 期号:9 页码:1434-1445
英文摘要	Understanding vegetation evolution is critical for exploring changes in terrestrial ecosystems and identifying future challenges. However, analyses that simultaneously examine trend shifts in vegetation greenness at the national, regional, biome, and pixel scales in China are still rare. Using long-term (1982-2015) satellite data and the breaks for additive season and trend (BFAST) technique, we identified breakpoints in normalized difference vegetation index (NDVI) in China. The results showed that the annual mean NDVI gradually increased. A total of 68.8% of the vegetated area exhibited upward trends in NDVI, most of which was distributed in Southeast China and the Loess Plateau. Changes in NDVI trends occurred in 78.7% of the total vegetated areas, while hotspots were concentrated in Northwest and North China. A rapid increase in breakpoints was detected after 1999, mainly concentrated in North and Northwest China, and corresponding to the times and areas with the highest ecological engineering efforts. Positive shifts in NDVI trends were more common and generally distributed on the eastern side of the Hu Huanyong line, while browning (negative) shifts were mainly distributed on the western side and were gradually expanding, indicating a possible tendency toward environmental degradation. Although unstable vegetation areas that underwent land cover type changes had higher frequencies of breakpoints, the proportion of stable vegetation experiencing NDVI trend shifts was higher after 2000, probably because human intervention buffered external disturbances in unstable areas. Identifying hotspot areas of shifts in vegetation greenness can help setting priorities when taking measures for ecosystem conservation, thus provide scientific reference for sustainable land development.
英文关键词	BFAST breakpoints China GIMMS NDVI3g vegetation dynamics
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000782642100001
WOS关键词	NET PRIMARY PRODUCTION ; CLIMATE-CHANGE ; QUANTITATIVE ASSESSMENT ; PLATEAU ; RESTORATION ; DESERTIFICATION ; IMPACTS ; GROWTH ; PRODUCTIVITY ; GRASSLANDS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393714
推荐引用方式 GB/T 7714	Jiang, Ping,Ding, Wen-guang,Yuan, Ye,et al. Identifying trend shifts in vegetation greenness in China from 1982 to 2015[J],2022,33(9):1434-1445.
APA	Jiang, Ping,Ding, Wen-guang,Yuan, Ye,Hu, Liequn,&Ye, Weifeng.(2022).Identifying trend shifts in vegetation greenness in China from 1982 to 2015.LAND DEGRADATION & DEVELOPMENT,33(9),1434-1445.
MLA	Jiang, Ping,et al."Identifying trend shifts in vegetation greenness in China from 1982 to 2015".LAND DEGRADATION & DEVELOPMENT 33.9(2022):1434-1445.