Variations in net primary productivity and its relationships with warming climate in the permafrost zone of the Tibetan Plateau

	Variations in net primary productivity and its relationships with warming climate in the permafrost zone of the Tibetan Plateau
	D. H. Mao; L. Luo; Z. M. Wang; C. H. Zhang; C. Y. Ren
刊名	Journal of Geographical Sciences
	2015
卷号	25 期号:8 页码:967-977
通讯作者	王宗明
中文摘要	Permafrost degradation triggered by a warming climate induces significant changes in soil conditions, and further contributes to apparent impacts on vegetation. However, much less is known regarding the difference in net primary productivity (NPP) and the relationships between NPP and warming temperature among different vegetation types and various types of permafrost zone on the Tibetan Plateau. Consequently, remotely sensed land surface temperature (LST) and NPP from the MODIS platform were used to investigate the response of vegetation NPP to warming climate, and the correlations were scaled up for the study region. Our results indicated a notable increase of NPP from west to east, and significantly increased annual NPP along with the increased LST from 2000 to 2010 in the permafrost zone of the Tibetan Plateau. Meanwhile, the increased NPP for various vegetation types and in different types of permafrost zone with relation to warming temperature was revealed. NPP in the continuous permafrost zone had the greatest sensitivity to the changing LST, and forest NPP presented the most obvious response. Positive correlations between NPP and LST at various scales indicated the enhanced effects of warming LST on vegetation carbon sequestration in the permafrost zone of the Tibetan Plateau. In view of the notable response of NPP to warming temperature on this plateau, remote sensing needs to be further employed to reveal the status of permafrost degradation and its related effects on vegetation.
内容类型	期刊论文
源URL	[http://159.226.123.10/handle/131322/6589]
专题	东北地理与农业生态研究所_地理景观遥感学科组_期刊论文
推荐引用方式 GB/T 7714	D. H. Mao,L. Luo,Z. M. Wang,et al. Variations in net primary productivity and its relationships with warming climate in the permafrost zone of the Tibetan Plateau[J]. Journal of Geographical Sciences,2015,25(8):967-977.
APA	D. H. Mao,L. Luo,Z. M. Wang,C. H. Zhang,&C. Y. Ren.(2015).Variations in net primary productivity and its relationships with warming climate in the permafrost zone of the Tibetan Plateau.Journal of Geographical Sciences,25(8),967-977.
MLA	D. H. Mao,et al."Variations in net primary productivity and its relationships with warming climate in the permafrost zone of the Tibetan Plateau".Journal of Geographical Sciences 25.8(2015):967-977.