干旱区生态环境知识资源中心(Arid): Normalized Difference Vegetation Index-based assessment of climate change impact on vegetation growth in the humid-arid transition zone in northern China during 1982-2013

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DOI	10.1002/joc.6172
	Normalized Difference Vegetation Index-based assessment of climate change impact on vegetation growth in the humid-arid transition zone in northern China during 1982-2013
	Yuan, Wei 1; Wu, Shuang-Ye 1,2; Hou, Shugui 1; Xu, Zhiwei 1; Lu, Huayu 1
通讯作者	Wu, Shuang-Ye ; Hou, Shugui
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
出版年	2019
卷号	39 期号:15 页码:5583-5598
英文摘要	As an ecologically sensitive region, the humid-to-arid climate transition zone in the eastern and central north China (ECNC) has experienced varied vegetation change in recent decades, but the exact impacts of climate change and human activities remain uncertain. Based on the Normalized Difference Vegetation Index (NDVI), we established the trend of vegetation change in the past three decades (1982-2013) in the ECNC, and examined the impact of climate and nonclimate factors on vegetation growth within the different eco-regions. For the study period, the climate in ECNC became significantly warmer and slightly drier, and the overall NDVI increased significantly, but with great spatial variations. Our results suggest that temperature increase has promoted vegetation growth in places that are colder and/or wetter, and with higher vegetation coverage. Precipitation increase has promoted vegetation growth in drier places with sparse vegetation and inhibited growth in wet places with high vegetation coverage. As different eco-regions typically have different vegetation coverage and occupy different climate zones, their response to climate change also varies. For the study period, increasing temperature and decreasing precipitation promoted vegetation growth in the forest of northern ECNC. Increasing temperature and precipitation led to NDVI increase in the grassland in the south, whereas grassland in the north and west showed no significant change despite temperature increase and precipitation decrease. Cropland responded mostly positively to temperature increase, although correlations between NDVI and climate factors were generally weaker. Using multiple regression models, we found that 60% of the NDVI increase was attributed to climate factors whereas the remaining 40% was likely caused by human activities. Although farming practices and crop rotations might have caused significant decrease in NDVI in small areas, human impact largely led to significant NDVI increase in the grass-crop transition zones, most likely due to ecological restoration programs.
英文关键词	climate change human impacts NDVI vegetation response
类型	Article
语种	英语
国家	Peoples R China ; USA
收录类别	SCI-E
WOS记录号	WOS:000474058600001
WOS关键词	US DUNE FIELD ; LAND-COVER ; SANDY LAND ; DESERTIFICATION ; NDVI ; DEGRADATION ; RESPONSES ; DYNAMICS ; WESTERN ; STEPPE
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	南京大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216386
作者单位	1.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China; 2.Univ Dayton, Dept Geol, Dayton, OH 45469 USA
推荐引用方式 GB/T 7714	Yuan, Wei,Wu, Shuang-Ye,Hou, Shugui,et al. Normalized Difference Vegetation Index-based assessment of climate change impact on vegetation growth in the humid-arid transition zone in northern China during 1982-2013[J]. 南京大学,2019,39(15):5583-5598.
APA	Yuan, Wei,Wu, Shuang-Ye,Hou, Shugui,Xu, Zhiwei,&Lu, Huayu.(2019).Normalized Difference Vegetation Index-based assessment of climate change impact on vegetation growth in the humid-arid transition zone in northern China during 1982-2013.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(15),5583-5598.
MLA	Yuan, Wei,et al."Normalized Difference Vegetation Index-based assessment of climate change impact on vegetation growth in the humid-arid transition zone in northern China during 1982-2013".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.15(2019):5583-5598.