干旱区生态环境知识资源中心(Arid): Temperature Mediates the Dynamic of MODIS NPP in Alpine Grassland on the Tibetan Plateau, 2001-2019

Arid

DOI	10.3390/rs14102401
	Temperature Mediates the Dynamic of MODIS NPP in Alpine Grassland on the Tibetan Plateau, 2001-2019
	Cui, Jinxia; Wang, Yanding; Zhou, Tiancai; Jiang, Lili; Qi, Qingwen
通讯作者	Jiang, LL
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:10
英文摘要	Although alpine grassland net primary productivity (NPP) plays an important role in balancing the carbon cycle and is extremely vulnerable to climate factors, on the Tibetan Plateau, the generalized effect of climate factors on the NPP in areas with humid and arid conditions is still unknown. Hence, we determined the effects of precipitation and temperature on the MODIS NPP in alpine grassland areas from 2001 to 2019 according to information from humid and arid climatic regions. On a spatial scale, we found that temperature generated a larger effect on the NPP than precipitation did in humid regions, but as a primary factor, precipitation had an impact on the NPP in arid regions. These results suggest that temperature and precipitation are the primary limiting factors for plant growth in humid and arid regions. We also found that temperature produced a greater effect on the NPP in humid regions than in arid regions, but no significant differences were observed in the effects of precipitation on the NPP in humid and arid regions. In a time series (2001-2019), the effects of precipitation and temperature on the NPP presented fluctuating decrease (R-2 = 0.28, p < 0.05) and increase (R-2 = 0.24, p < 0.05) trends in arid regions. However, the effect of the climate on the NPP remained stable in humid regions. In both humid and arid regions, the dynamics of the NPP from 2001 to 2019 were mediated by an increase in temperature. Specifically, 35.9% and 2.57% of the dynamic NPP in humid regions and 45.1 and 7.53% of the dynamic NPP in arid regions were explained by variations in the temperature and precipitation, respectively. Our findings highlighted that grassland areas in humid regions can adapt to dynamic climates, but plants in arid regions are sensitive to changes in the climate. These findings can increase our understanding of climate and ecological responses and provide a framework for adapting management practices.
英文关键词	NPP temperature precipitation climate change Tibetan Plateau
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000801596800001
WOS关键词	NET PRIMARY PRODUCTIVITY ; CLIMATE-CHANGE ; TERRESTRIAL ECOSYSTEMS ; SPECIES COMPOSITION ; CARBON ; VEGETATION ; CHINA ; BIODIVERSITY ; STABILITY ; PATTERNS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394141
推荐引用方式 GB/T 7714	Cui, Jinxia,Wang, Yanding,Zhou, Tiancai,et al. Temperature Mediates the Dynamic of MODIS NPP in Alpine Grassland on the Tibetan Plateau, 2001-2019[J],2022,14(10).
APA	Cui, Jinxia,Wang, Yanding,Zhou, Tiancai,Jiang, Lili,&Qi, Qingwen.(2022).Temperature Mediates the Dynamic of MODIS NPP in Alpine Grassland on the Tibetan Plateau, 2001-2019.REMOTE SENSING,14(10).
MLA	Cui, Jinxia,et al."Temperature Mediates the Dynamic of MODIS NPP in Alpine Grassland on the Tibetan Plateau, 2001-2019".REMOTE SENSING 14.10(2022).