中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China

文献类型:期刊论文

作者Zhou, Ruiwu5; Zhang, Yiping; Song, Qinghai; Lin, Youxing5; Sha, Liqing; Jin, Yanqiang1; Liu, Yuntong; Fei, Xuehai2; Gao, Jinbo5; He, Yunling3
刊名FOREST ECOLOGY AND MANAGEMENT
出版日期2019
卷号437期号:x页码:222-231
ISSN号0378-1127
关键词Carbon-dioxide Exchange Leaf-area Index Repeat Photography Seasonal Dynamics Phenology Forest Photosynthesis Expansion Soil Gpp
DOI10.1016/j.foreco.2019.01.019
英文摘要

The widespread increase in the number of digital cameras mounted on flux towers provides an opportunity to better understand the relationship between the seasonality of canopy photosynthesis and canopy phenology. The challenge is due to fewer variations in rubber defoliation of rubber canopy. We examined the relationship between colour indices calculated from digital camera images and gross primary production (GPP) obtained from daily flux tower observations of carbon dioxide over two years in a rubber plantation and used these colour indices to model GPP. According to the results, (1) the strength of green (S-green), Hue and GPP exhibited clear seasonal patterns in the rubber plantation, and the relationship between the camera-based indices and GPP appeared to have distinct characteristics at different phenological stages; (2) the peak GPP from the flux tower measurements lagged behind the peak in the colour indices calculated from digital camera imagery, (3) GPP was strongly correlated with S-green derived from camera imagery in the rubber plantation, especially in the leaf expansion period; and (4) the GPP simulated by colour indices (S-green and Hue) was underestimated, and the fraction of absorbed photosynthetically active radiation (FPAR) was the best parameter for modelling GPP in normal years. Our results indicate that colour indices calculated from digital camera images can be used to model GPP in rubber plantations and to monitor biotic and abiotic stress events. Future research should measure the pigment contents of canopy leaves to precisely quantify the relationship between colour indices and GPP.

学科主题Forestry
语种英语
WOS记录号WOS:000461270600021
源URL[http://ir.xtbg.org.cn/handle/353005/11170]  
专题西双版纳热带植物园_全球变化研究组
西双版纳热带植物园_森林生态研究组
作者单位1.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Forest Ecol, Menglun 666303, Peoples R China
2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, Key Lab Trop Plant Resources & Sustainable Use, Menglun 666303, Peoples R China
3.Guizhou Univ, Coll Resource & Environm Engn, Guiyang 550025, Guizhou, Peoples R China
4.Yunnan Univ, Coll Resource Environm & Earth Sci, Kunming 650201, Yunnan, Peoples R China
5.Nat Resources Canada, Canada Ctr Remote Sensing, Ottawa, ON K1A 0E4, Canada
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Zhou, Ruiwu,Zhang, Yiping,Song, Qinghai,et al. Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China[J]. FOREST ECOLOGY AND MANAGEMENT,2019,437(x):222-231.
APA Zhou, Ruiwu.,Zhang, Yiping.,Song, Qinghai.,Lin, Youxing.,Sha, Liqing.,...&Wang, Shusen.(2019).Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China.FOREST ECOLOGY AND MANAGEMENT,437(x),222-231.
MLA Zhou, Ruiwu,et al."Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China".FOREST ECOLOGY AND MANAGEMENT 437.x(2019):222-231.

入库方式: OAI收割

来源:西双版纳热带植物园

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