Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China

KIZ OpenIR > 遗传资源与进化国家重点实验室 > 分子进化与基因组多样性（张亚平）

	Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China
	Zhou, RW; Zhang, YP; Song, QH; Lin, YX; Sha, LQ; Jin, YQ; Liu, YT; Fei, XH; Gao, JB; He, YL; Li, TY; Wang, SS
	2019
发表期刊	FOREST ECOLOGY AND MANAGEMENT
ISSN	0378-1127
卷号	437 期号:X 页码:222-231
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.
收录类别	sci
语种	英语
文献类型	期刊论文
条目标识符	http://ir.kiz.ac.cn/handle/152453/13954
专题	遗传资源与进化国家重点实验室_分子进化与基因组多样性（张亚平）
推荐引用方式 GB/T 7714	Zhou, RW,Zhang, YP,Song, QH,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, RW.,Zhang, YP.,Song, QH.,Lin, YX.,Sha, LQ.,...&Wang, SS.(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, RW,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.

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2023081008.pdf（4397KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	请求全文