Building variable productivity ratios for improving large scale spatially explicit pruning biomass assessments

García-Galindo, D. ; Dyjakon, A. ; Villa-Ceballos, F.C.

Resumen: Biomass assessments of agro–residues performed at large geographical scales generally base calculations on single constant pruning productivity ratios (RSRs). Reliability of biomass assessments shall be improved if RSRs respond to prevailing regional crop growing conditions. The present paper describes the methodology applied to create geographically varying pruning RSR ratios–tons of dry matter per hectare—for five crop groups: vineyard, olive, fruit species, citrus and dry fruits. A newly created database containing 230 records–from seven EU28 countries—is submitted to statistical analysis. Results reveal that agro-climatic conditions are able to explain a not negligible share of the pruning productivity as dependent variable. Subsequent regression analysis provides two equations—for vineyard and citrus—achieving a reasonable good fitting (R 2 0.18 and 0.42 respectively) between RSR and the agroclimatic variables. Analysis of olive, fruit species and dry fruits scatter and whisker plots were useful for zoning and inducing ramp functions. A Geographical Information System (GIS) was utilised to apply the functions to the agroclimatic raster coverages in order to obtain RSR raster grids. Zonal statistic procedures applied by European regional units (NUTs0, NUTs2, NUTs3) provide a specific crop RSR ratio per administrative unit as a principal output of the present work.

Idioma: Inglés

DOI: 10.3390/en12050957

Año: 2019

Publicado en: Energies 12, 5 (2019), 957
ISSN: 1996-1073

Factor impacto JCR: 2.702 (2019)

Categ. JCR: ENERGY & FUELS rank: 63 / 112 = 0.562 (2019) - Q3 - T2

Factor impacto SCIMAGO: 0.635 - Control and Optimization (Q2) - Electrical and Electronic Engineering (Q2) - Renewable Energy, Sustainability and the Environment (Q2) - Energy Engineering and Power Technology (Q2) - Fuel Technology (Q2) - Energy (miscellaneous) (Q2)

Financiación: info:eu-repo/grantAgreement/EC/FP7/312078/EU/Development and implementation of a new, and non existent, logistics chain for biomass from pruning/EUROPRUNING

Tipo y forma: Article (Published version)