IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Derivation of temporally continuous leaf maximum carboxylation rate (V-cmax) from the sunlit leaf gross photosynthesis productivity through combining BEPS model with light response curve at tower flux sites
Xinyao Xie1,2; Ainong Li1; Huaan Jin1; Gaofei Yin1; Xi Nan1,3
Corresponding AuthorAinong Li
2018
Source PublicationAGRICULTURAL AND FOREST METEOROLOGY
ISSN0168-1923
EISSN1873-2240
Volume259Pages:82-94
SubtypeArticle
Contribution Rank1
AbstractPhotosynthesis plays an important role in terrestrial carbon cycle, and simulation of photosynthesis through terrestrial biosphere models usually requires a specification of maximum carboxylation rate (V-cmax). However, estimating V-cmax by gas-exchange experiments is laborious and tedious, resulting in a general paucity of V-cmax data. In this study, a reliable assimilation scheme to derive temporally continuous V-cmax from measured sunlit gross photosynthesis productivity (GPP) was proposed and validated at three Canadian tower flux sites. To fulfill this purpose, the Boreal Ecosystem Productivity Simulator (BEPS) and light response curve were combined to separate the eddy covariance GPP data into sunlit GPP and shaded GPP, due to the lack of measured sunlit GPP. The reliability of V-cmax was validated through the correlation analysis between the normalized difference vegetation index (NDVI) and V-cmax. To illustrate the advantages of the proposed scheme in our study, BEPS simulated GPP using the derived from sunlit GPP in our study, the derived V-cmax from canopy GPP and the reference V-cmax as constants were respectively compared with corresponding eddy covariance GPP measurements. Results showed that (1) the proposed assimilation scheme based on sunlit GPP can be used to derive reliable temporally continuous V-cmax. The V-cmax obtained in our study was significantly correlated with NDVI (R-2 = 0.77); (2) the seasonal variations in V-cmax could significantly improve the accuracy of photosynthesis simulation. The GPP difference between eddy covariance GPP and BEPS simulated GPP using derived V-cmax from sunlit GPP (mean = 0.12, std = 0.92) were significantly smaller than those between eddy covariance GPP and BEPS simulated GPP using reference V-cmax as constants (mean = 1.37, std = 1.37); (3) the sunlit GPP is able to obtain the relatively accurate V-cmax that can improve the simulation of photosynthesis. GPP difference between eddy covariance GPP and BEPS simulated GPP using derived from sunlit GPP (mean = 0.12, std = 0.92) showed lower mean values and standard deviations than those between eddy covariance GPP and BEPS simulated GPP using derived V-cmax from canopy GPP (mean = 0.67, std = 1.00). Our study illustrated the reliability that sunlit GPP can be used to derive relatively accurate temporally continuous V-cmax, and the assimilation scheme gives new potential to improve the simulation of photosynthesis through terrestrial biosphere models.
KeywordLeaf maximum carboxylation rate (Vcmax) Gross photosynthesis productivity (GPP) Boreal Ecosystem Productivity Simulator (BEPS) Light response curve
DOI10.1016/j.agrformet.2018.04.017
Indexed BySCI
Language英语
Quartile1区
TOP
WOS IDWOS:000437064400008
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23420
Collection山地表生过程与生态调控重点实验室
数字山地与遥感应用中心
Affiliation1.Research Center for Digital Mountain and Remote Sensing Application, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3.College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Xinyao Xie,Ainong Li,Huaan Jin,et al. Derivation of temporally continuous leaf maximum carboxylation rate (V-cmax) from the sunlit leaf gross photosynthesis productivity through combining BEPS model with light response curve at tower flux sites[J]. AGRICULTURAL AND FOREST METEOROLOGY,2018,259:82-94.
APA Xinyao Xie,Ainong Li,Huaan Jin,Gaofei Yin,&Xi Nan.(2018).Derivation of temporally continuous leaf maximum carboxylation rate (V-cmax) from the sunlit leaf gross photosynthesis productivity through combining BEPS model with light response curve at tower flux sites.AGRICULTURAL AND FOREST METEOROLOGY,259,82-94.
MLA Xinyao Xie,et al."Derivation of temporally continuous leaf maximum carboxylation rate (V-cmax) from the sunlit leaf gross photosynthesis productivity through combining BEPS model with light response curve at tower flux sites".AGRICULTURAL AND FOREST METEOROLOGY 259(2018):82-94.
Files in This Item:
File Name/Size DocType Version Access License
Derivation of tempor(4399KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Xinyao Xie]'s Articles
[Ainong Li]'s Articles
[Huaan Jin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Xinyao Xie]'s Articles
[Ainong Li]'s Articles
[Huaan Jin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Xinyao Xie]'s Articles
[Ainong Li]'s Articles
[Huaan Jin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Derivation of temporally continuous leaf maximum carboxylation rate (V-cmax) from the sunlit leaf gross photosynthesis .pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.