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DOI | 10.1088/1748-9326/ab70bb |
Estimating site-specific optimum air temperature and assessing its effect on the photosynthesis of grasslands in mid- to high-latitudes | |
Chang, Qing1; Xiao, Xiangming1; Wu, Xiaocui1; Doughty, Russell1; Jiao, Wenzhe2; Bajgain, Rajen1; Qin, Yuanwei1; Wang, Jie1 | |
2020-03-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2020 |
卷号 | 15期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The effect of air temperature on photosynthesis is important for the terrestrial carbon cycle. The optimum air temperature for photosynthesis is one of the major parameters in data-driven and process-based photosynthesis models that estimate the gross primary production (GPP) of vegetation under a changing climate. To date, most models use the biome-specific optimum air temperature (Topt-b) parameter. Towhat degreewill the site-specific optimumair temperature (Topt-s) affectGPP simulation results remains unclear. In this study, we estimated Topt-s by usingGPP data from11 grassland eddy flux tower sites (GPP(EC)) and satellite vegetation indices (NDVI and EVI). We found that Topt-s parameter values estimated from EVI have good consistency with those from GPPEC at individual sites. Wealso evaluated the effects of site-specific and biome-specific optimum air temperature parameters on grassland photosynthesis. The results showed that the use of Topt-s in the Vegetation Photosynthesis Model improved to various degrees in both daily and annual GPP estimates in those grassland flux tower sites. Our results highlight the necessity and potential for the use of Topt-s in terrestrial GPP models, especially in those situations with large temperature variation (heatwave and cold spill events). |
英文关键词 | eddy flux tower sites gross primary productivity EVI vegetation productivity model |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000521169000001 |
WOS关键词 | GROSS PRIMARY PRODUCTION ; NET PRIMARY PRODUCTION ; INDUCED CHLOROPHYLL FLUORESCENCE ; USE-EFFICIENCY MODEL ; PRIMARY PRODUCTIVITY ; TERRESTRIAL GROSS ; CARBON ; VEGETATION ; CLIMATE ; SATELLITE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/279230 |
专题 | 气候变化 |
作者单位 | 1.Univ Oklahoma, Ctr Spatial Anal, Dept Microbiol & Plant Biol, Norman, OK 73019 USA; 2.Indiana Univ Purdue Univ, Dept Earth Sci, Indianapolis, IN 46202 USA |
推荐引用方式 GB/T 7714 | Chang, Qing,Xiao, Xiangming,Wu, Xiaocui,et al. Estimating site-specific optimum air temperature and assessing its effect on the photosynthesis of grasslands in mid- to high-latitudes[J]. ENVIRONMENTAL RESEARCH LETTERS,2020,15(3). |
APA | Chang, Qing.,Xiao, Xiangming.,Wu, Xiaocui.,Doughty, Russell.,Jiao, Wenzhe.,...&Wang, Jie.(2020).Estimating site-specific optimum air temperature and assessing its effect on the photosynthesis of grasslands in mid- to high-latitudes.ENVIRONMENTAL RESEARCH LETTERS,15(3). |
MLA | Chang, Qing,et al."Estimating site-specific optimum air temperature and assessing its effect on the photosynthesis of grasslands in mid- to high-latitudes".ENVIRONMENTAL RESEARCH LETTERS 15.3(2020). |
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