气候变化领域集成服务门户(CCPortal): Vegetation Greening, Extended Growing Seasons, and Temperature Feedbacks in Warming Temperate Grasslands of China

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DOI	10.1175/JCLI-D-21-0325.1
	Vegetation Greening, Extended Growing Seasons, and Temperature Feedbacks in Warming Temperate Grasslands of China
	Shen, Xiangjin; Liu, Binhui; Henderson, Mark; Wang, Lei; Jiang, Ming; Lu, Xianguo
发表日期	2022
ISSN	0894-8755
EISSN	1520-0442
起始页码	5103
结束页码	5117
卷号	35 期号:15
英文摘要	Vegetation activity and phenology are significantly affected by climate change, and changes in vegetation activity and phenology can in turn affect regional or global climate patterns. As one of the world's great biomes, temperate grasslands have undergone remarkable changes in recent decades, but the connections between vegetation activity and phenology changes and regional climate there have remained unclear. Using the observation minus reanalysis (OMR) method, this study investigated the possible effects of vegetation activity and vegetation growing season changes on air temperatures in temperate grasslands of China. The results showed that average NDVI of the temperate grassland significantly increased by 0.011 decade(-1) for the growing season during 1982-2015. The growing season started earlier and ended later, resulting in an extension. Increased vegetation activity during spring and autumn significantly warmed spring and autumn air temperatures by reducing albedo. By contrast, summer greening had no significant effect on summer temperature, due to the opposing effects of decreased albedo and enhanced evapotranspiration on temperature. The earlier start and later end of the growing season contributed to warmer spring and autumn air temperatures. As phenological changes had no significant effect on summer temperature, the extended growing season warmed air temperature. Our results suggest that the climate change-induced increasing vegetation activity and extended growing seasons can further aggravate regional warming in temperate grasslands of China, implying that the effects of vegetation activity and phenology changes on regional climate should be considered in climate models for accurately simulating climate change in temperate grasslands.
英文关键词	Climate change; Vegetation; Feedback; Vegetation-atmosphere interactions; Surface temperature; Temperature
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000828206000013
来源期刊	JOURNAL OF CLIMATE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280319
作者单位	Chinese Academy of Sciences; Northeast Institute of Geography & Agroecology, CAS; Northeast Forestry University - China
推荐引用方式 GB/T 7714	Shen, Xiangjin,Liu, Binhui,Henderson, Mark,et al. Vegetation Greening, Extended Growing Seasons, and Temperature Feedbacks in Warming Temperate Grasslands of China[J],2022,35(15).
APA	Shen, Xiangjin,Liu, Binhui,Henderson, Mark,Wang, Lei,Jiang, Ming,&Lu, Xianguo.(2022).Vegetation Greening, Extended Growing Seasons, and Temperature Feedbacks in Warming Temperate Grasslands of China.JOURNAL OF CLIMATE,35(15).
MLA	Shen, Xiangjin,et al."Vegetation Greening, Extended Growing Seasons, and Temperature Feedbacks in Warming Temperate Grasslands of China".JOURNAL OF CLIMATE 35.15(2022).