干旱区生态环境知识资源中心(Arid): Allometric equations coupled with remotely sensed variables to estimate carbon stocks in date palms

Arid

DOI	10.1016/j.jaridenv.2020.104264
	Allometric equations coupled with remotely sensed variables to estimate carbon stocks in date palms
	Issa, Salem; Dahy, Basam; Ksiksi, Taoufik; Saleous, Nazmi
通讯作者	Issa, S
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2020
卷号	182
英文摘要	This study aims at developing specific allometric biomass equations that can be integrated into a remote sensing (RS) based model for assessing carbon sequestered in date palms. Assessing the potential of date palms to improve soil carbon sequestration was another objective. In a previous study, the authors demonstrated that combinations of visible and short wave single bands (Red, SWIR1, SWIR2) besides vegetation indices (DVI, NDI and RVI) derived from Landsat imagery correlated significantly with date palms' biomass. Here and based on field and lab work, relevant structural variables were identified and used in the development of allometric equations. Results showed that the crown area (CA) best estimated both crown biomass (CB) and soil organic carbon (SOC). Likewise, the trunk height (Ht) was the best estimator of trunk biomass (TB). Using these variables, allometric equations were developed for date palms at different age stages and were used to estimate CB, TB and SOC with coefficients of determination (R-2) of: 0.884, 0.835 and 0.952, respectively. Furthermore, the average ratios of below ground biomass (BGB) to above ground biomass (AGB) varied with palm maturity stages averaging 0.332, 0.925 and 0.496 for young, medium and mature palms, respectively. Moreover, the present study demonstrated that the amounts of organic carbon (OC) stored in date palms were considerable with values of: 15.88 kg/palm for young, 96.62 kg/palm for medium, and 225.58 kg/palm for mature palms. Substantially higher amounts of SOC were measured compared to other local plants with values of: 18.092 kg/palm, 62.594 kg/palm, and 92.908 kg/palm under young, medium and mature palms, respectively. The main achievement of the current study was the development of new and unprecedented allometric equations for date palm species in arid land. Such equations allow the development and calibration of a RS-based model for estimating biomass and Carbon Sequestration (CS) of date palms in the region with high accuracy.
英文关键词	Above ground biomass Below ground biomass Organic carbon Organic matter Regression analysis Soil organic carbon Vegetation indices
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000568736600005
WOS关键词	PREDICTING ABOVEGROUND BIOMASS ; WATER-STRESS ; SEQUESTRATION ; UNCERTAINTY ; FOREST ; LAND ; PLANTATIONS ; DYNAMICS ; MITIGATE ; DESERT
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326219
作者单位	[Issa, Salem; Dahy, Basam] United Arab Emirates Univ, Geol Dept, Al Ain, U Arab Emirates; [Ksiksi, Taoufik] United Arab Emirates Univ, Biol Dept, Al Ain, U Arab Emirates; [Saleous, Nazmi] United Arab Emirates Univ, Geog Dept, Al Ain, U Arab Emirates
推荐引用方式 GB/T 7714	Issa, Salem,Dahy, Basam,Ksiksi, Taoufik,et al. Allometric equations coupled with remotely sensed variables to estimate carbon stocks in date palms[J],2020,182.
APA	Issa, Salem,Dahy, Basam,Ksiksi, Taoufik,&Saleous, Nazmi.(2020).Allometric equations coupled with remotely sensed variables to estimate carbon stocks in date palms.JOURNAL OF ARID ENVIRONMENTS,182.
MLA	Issa, Salem,et al."Allometric equations coupled with remotely sensed variables to estimate carbon stocks in date palms".JOURNAL OF ARID ENVIRONMENTS 182(2020).