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Modeling the Effects of Global and Diffuse Radiation on Terrestrial Gross Primary Productivity in China Based on a Two-Leaf Light Use Efficiency Model

文献类型：期刊论文

作者Zhou, Yanlian6; Wu, Xiaocui2; Ju, Weimin3; Zhang, Leiming4,5; Chen, Zhi4,5; He, Wei3; Liu, Yibo1; Shen, Yang3
刊名REMOTE SENSING
出版日期2020-10-01
卷号12期号:20页码:21
关键词GPP diffuse radiation global radiation TL-LUE
DOI10.3390/rs12203355
通讯作者Ju, Weimin(juweimin@nju.edu.cn)
英文摘要Solar radiation significantly affects terrestrial gross primary productivity (GPP). However, the relationship between GPP and solar radiation is nonlinear because it is affected by diffuse radiation. Solar radiation has undergone a shift from darker to brighter values over the past 30 years in China. However, the effects on GPP of variation in solar radiation because of changes in diffuse radiation are unclear. In this study, national global radiation in conjunction with other meteorological data and remotely sensed data were used as input into a two-leaf light use efficiency model (TL-LUE) that simulated GPP separately for sunlit and shaded leaves for the period from 1981 to 2012. The results showed that the nationwide annual global radiation experienced a significant reduction (2.18 MJ m(-2) y(-1); p < 0.05) from 1981 to 2012, decreasing by 1.3% over this 32-year interval. However, the nationwide annual diffuse radiation increased significantly (p < 0.05). The reduction in global radiation from 1981 to 2012 decreased the average annual GPP of terrestrial ecosystems in China by 0.09 Pg C y(-1), whereas the gain in diffuse radiation from 1981 to 2012 increased the average annual GPP in China by about 50%. Therefore, the increase in canopy light use efficiency under higher diffuse radiation only partially offsets the loss of GPP caused by lower global radiation.
WOS关键词NET PRIMARY PRODUCTIVITY ; SOLAR-RADIATION ; ECOSYSTEMS ; TREND ; PERFORMANCE ; VALIDATION ; SIMULATION ; IRRADIANCE ; COMPONENT ; PINATUBO
资助项目National Key Research and Development Program of China[2016YFA0600202] ; National Natural Science Foundation of China[42077419]
WOS研究方向Remote Sensing
语种英语
出版者MDPI
WOS记录号WOS:000585631300001
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China
源URL[http://ir.igsnrr.ac.cn/handle/311030/156651]  
专题中国科学院地理科学与资源研究所
通讯作者Ju, Weimin
作者单位1.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Jiangsu Key Lab Agr Meteorol, Nanjing 210044, Peoples R China
2.Univ Oklahoma, Dept Microbiol & Plant Biol, Ctr Spatial Anal, Norman, OK 73019 USA
3.Nanjing Univ, Int Inst Earth Syst Sci, Nanjing 210023, Peoples R China
4.Chinese Acad Sci, Synth Res Ctr, Chinese Ecosyst Res Network, Beijing 100101, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
6.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Peoples R China
推荐引用方式
GB/T 7714		 Zhou, Yanlian,Wu, Xiaocui,Ju, Weimin,et al. Modeling the Effects of Global and Diffuse Radiation on Terrestrial Gross Primary Productivity in China Based on a Two-Leaf Light Use Efficiency Model[J]. REMOTE SENSING,2020,12(20):21.
APA Zhou, Yanlian.,Wu, Xiaocui.,Ju, Weimin.,Zhang, Leiming.,Chen, Zhi.,...&Shen, Yang.(2020).Modeling the Effects of Global and Diffuse Radiation on Terrestrial Gross Primary Productivity in China Based on a Two-Leaf Light Use Efficiency Model.REMOTE SENSING,12(20),21.
MLA Zhou, Yanlian,et al."Modeling the Effects of Global and Diffuse Radiation on Terrestrial Gross Primary Productivity in China Based on a Two-Leaf Light Use Efficiency Model".REMOTE SENSING 12.20(2020):21.

入库方式： OAI收割

来源：地理科学与资源研究所

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