气候变化领域集成服务门户(CCPortal): Estimating residual biomass of olive tree crops using terrestrial laser scanning

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DOI	10.1016/j.jag.2018.10.019
	Estimating residual biomass of olive tree crops using terrestrial laser scanning
	Fernández-Sarría A.; López-Cortés I.; Estornell J.; Velázquez-Martí B.; Salazar D.
发表日期	2019
ISSN	15698432
起始页码	163
结束页码	170
卷号	75
英文摘要	Agricultural residues have gained increasing interest as a source of renewable energy. The development of methods and techniques that allow to inventory residual biomass needs to be explored further. In this study, the residual biomass of olive trees was estimated based on parameters derived from using a Terrestrial Laser Scanning System (TLS). To this end, 32 olive trees in 2 orchards in the municipality of Viver, Central Eastern Spain, were selected and measured using a TLS system. The residual biomass of these trees was pruned and weighed. Several algorithms were applied to the TLS data to compute the main parameters of the trees: total height, crown height, crown diameter and crown volume. Regarding the last parameter, 4 methods were tested: the global convex hull volume, the convex hull by slice volume, the section volume, and the volume measured by voxels. In addition, several statistics were computed from the crown points for each tree. Regression models were calculated to predict residual biomass using 3 sets of potential explicative variables: firstly, the height statistics retrieved from 3D cloud data for each crown tree, secondly, the parameters of the trees derived from TLS data and finally, the combination of both sets of variables. Strong relationships between residual biomass and TLS parameters (crown volume parameters) were found (R 2 = 0.86, RMSE = 2.78 kg). The pruning biomass prediction fraction was improved by 6%, in terms of R 2 , when the variance of the crown-point elevations was selected (R 2 = 0.92, RMSE = 2.01 kg). The study offers some important insights into the quantification of residual biomass, which is essential information for the production of biofuel. © 2018 Elsevier B.V.
英文关键词	Cloud metrics; Convex hull; Residual biomass; TLS; Voxel
语种	英语
scopus关键词	algorithm; alternative energy; biofuel; biomass; computer simulation; crop plant; crop residue; estimation method; numerical model; Spain; Viver
来源期刊	International Journal of Applied Earth Observation and Geoinformation
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156534
作者单位	Dpto. Ing. Cartográfica, Geodesia y Fotogrametría, Universitat Politècnica de València, Camino de Vera s/n, Valencia, 46022, Spain; Dpto. Producción Vegetal, Universitat Politècnica de València, Camino de Vera s/n, Valencia, 46022, Spain; Dpto. Ing. Rural y Agroalimentaria, Universitat Politècnica de València, Camino de Vera s/n, Valencia, 46022, Spain
推荐引用方式 GB/T 7714	Fernández-Sarría A.,López-Cortés I.,Estornell J.,et al. Estimating residual biomass of olive tree crops using terrestrial laser scanning[J],2019,75.
APA	Fernández-Sarría A.,López-Cortés I.,Estornell J.,Velázquez-Martí B.,&Salazar D..(2019).Estimating residual biomass of olive tree crops using terrestrial laser scanning.International Journal of Applied Earth Observation and Geoinformation,75.
MLA	Fernández-Sarría A.,et al."Estimating residual biomass of olive tree crops using terrestrial laser scanning".International Journal of Applied Earth Observation and Geoinformation 75(2019).