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Journal of Applied Remote Sensing • Open Access

Experimental warming does not enhance gross primary production and above-ground biomass in the alpine meadow of Tibet
Author(s): Gang Fu; Xianzhou Zhang; Yangjian Zhang; Peili Shi; Yunlong Li; Yuting Zhou; Pengwan Yang; Zhenxi Shen

Paper Abstract

In order to understand the response of gross primary production (GPP) and above-ground biomass (AGB) to warming, a field warming experiment using open-top chambers was conducted in an alpine meadow at three elevations (i.e., 4313, 4513, and 4693 m) on the Northern Tibetan Plateau in May 2010. We calculated GPP from the moderate-resolution imaging spectroradiometer algorithm and AGB using the surface measured data in 2012. Average GPP and AGB at elevation 4313 m was significantly decreased by experimental warming, whereas the declines at elevations 4513 and 4693 m were not statistically significant across all sampling dates. The negative effects of experimental warming on GPP and AGB may be related to experimental warming-induced soil drying. The different responses of GPP and AGB to experimental warming among the three alpine meadow sites could be dependent on climate conditions. Our findings suggested that experimental warming did not enhance GPP and AGB in the alpine meadow, and its effects differed among alpine meadows on the Tibetan Plateau.

Paper Details

Date Published: 16 September 2013
PDF: 13 pages
J. Appl. Remote Sens. 7(1) 073505 doi: 10.1117/1.JRS.7.073505
Published in: Journal of Applied Remote Sensing Volume 7, Issue 1
Show Author Affiliations
Gang Fu, Institute of Geographical Sciences and Natural Resources Research (China)
Xianzhou Zhang, Institute of Geographical Sciences and Natural Resources Research (China)
Yangjian Zhang, Institute of Geographical Sciences and Natural Resources Research (China)
Peili Shi, Institute of Geographical Sciences and Natural Resources Research (China)
Yunlong Li, Institute of Geographical Sciences and Natural Resources Research (China)
Yuting Zhou, The Univ. of Oklahoma (United States)
Pengwan Yang, Institute of Geographical Sciences and Natural Resources Research (China)
Zhenxi Shen, Institute of Geographical Sciences and Natural Resources Research (China)


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