气候变化领域集成服务门户(CCPortal): Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China

CCPortal

DOI	10.1016/j.foreco.2019.01.019
	Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China
	Zhou R.; Zhang Y.; Song Q.; Lin Y.; Sha L.; Jin Y.; Liu Y.; Fei X.; Gao J.; He Y.; Li T.; Wang S.
发表日期	2019
ISSN	0378-1127
起始页码	222
结束页码	231
卷号	437
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. © 2019
英文关键词	Canopy phenology; Colour indices; Digital camera; Gross primary production; Rubber plantation
语种	英语
scopus关键词	Biology; Carbon dioxide; Color; Digital cameras; Forestry; Rubber; Video cameras; Biotic and abiotic stress; Canopy phenologies; Canopy photosynthesis; Digital camera images; Gross primary production; Hevea brasiliensis; Phenological stage; Photosynthetically active radiation; Rubber plantations; canopy; color; digital image; phenology; photosynthesis; photosynthetically active radiation; plantation; primary production; rubber; Biology; Carbon Dioxide; Color; Forestry; Images; Patterns; Production; Rubber; China; Hevea brasiliensis
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156146
作者单位	CAS Key Laboratory of Tropical Forest Ecology, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303, China; CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303, China; College of Resource and Environmental Engineering, Guizhou University, Guiyang, 550025, China; College of Resource Environment and Earth Science, Yunnan University, Kunming, 650201, China; Canada Centre for Remote Sensing, Natural Resources Canada, Ottawa, ON K1A 0E4, Canada; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Zhou R.,Zhang Y.,Song Q.,et al. Relationship between gross primary production and canopy colour indices from digital camera images in a rubber (Hevea brasiliensis) plantation, Southwest China[J],2019,437.
APA	Zhou R..,Zhang Y..,Song Q..,Lin Y..,Sha L..,...&Wang S..(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.
MLA	Zhou R.,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(2019).