Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Allometric models for estimating belowground biomass of individual coffee bushes growing in monoculture and agroforestry systems

Allometric models for estimating belowground biomass of individual coffee bushes growing in... Coffee production in agroforestry systems (AFS) is known as a tool for mitigating climate change. Although, there are allometric models to estimate aboveground biomass of coffee bushes (Coffea arabica L.), allometric models for estimating its belowground components have not been developed yet. In this study, models as a function of easy measurable variables, like stem diameter at 15 cm height (D15), and total height (h) were developed. A total of 40 coffee plants that grow in the four main production systems in the municipality of Líbano, Tolima, Colombia: (1) monoculture; (2) AFS with plantain (Musa AAB); (3) AFS with laurel (Cordia alliodora); and (4) organic, were sampled. Standing bushes were measured (D15 and h), cut at ground level, and their root systems (diameter > 2 mm) were hand-extracted. Both above and belowground biomass (AGB and BGB, respectively) were gravimetrically estimated, as well as the root to shoot ratio (R:S) was estimated. Correlation analysis between dependent and independent variables were performed, and generic models with linear and transformed variables were tested. D15 ranged from 0.6 to 8.0 cm, and h from 0.46 to 3.0 m with a total BGB ranging from 10 g to 2.3 kg/plant. A R:S of 0.49 was estimated with no effect on cultivars and production systems. The best biomass model was BGB = 0.096 + 0.022 * D152; where BGB: total belowground biomass (kg/plant); D15 (cm); RMSE = 0.30. A model for estimating BGB based on AGB was also developed. These tools allow a highly accurate measuring of the BGB of coffee bushes in the production systems for a research or a carbon credits project. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agroforestry Systems Springer Journals

Allometric models for estimating belowground biomass of individual coffee bushes growing in monoculture and agroforestry systems

Loading next page...
 
/lp/springer-journals/allometric-models-for-estimating-belowground-biomass-of-individual-IgIBbABUw9

References (51)

Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature 2021
ISSN
0167-4366
eISSN
1572-9680
DOI
10.1007/s10457-020-00575-6
Publisher site
See Article on Publisher Site

Abstract

Coffee production in agroforestry systems (AFS) is known as a tool for mitigating climate change. Although, there are allometric models to estimate aboveground biomass of coffee bushes (Coffea arabica L.), allometric models for estimating its belowground components have not been developed yet. In this study, models as a function of easy measurable variables, like stem diameter at 15 cm height (D15), and total height (h) were developed. A total of 40 coffee plants that grow in the four main production systems in the municipality of Líbano, Tolima, Colombia: (1) monoculture; (2) AFS with plantain (Musa AAB); (3) AFS with laurel (Cordia alliodora); and (4) organic, were sampled. Standing bushes were measured (D15 and h), cut at ground level, and their root systems (diameter > 2 mm) were hand-extracted. Both above and belowground biomass (AGB and BGB, respectively) were gravimetrically estimated, as well as the root to shoot ratio (R:S) was estimated. Correlation analysis between dependent and independent variables were performed, and generic models with linear and transformed variables were tested. D15 ranged from 0.6 to 8.0 cm, and h from 0.46 to 3.0 m with a total BGB ranging from 10 g to 2.3 kg/plant. A R:S of 0.49 was estimated with no effect on cultivars and production systems. The best biomass model was BGB = 0.096 + 0.022 * D152; where BGB: total belowground biomass (kg/plant); D15 (cm); RMSE = 0.30. A model for estimating BGB based on AGB was also developed. These tools allow a highly accurate measuring of the BGB of coffee bushes in the production systems for a research or a carbon credits project.

Journal

Agroforestry SystemsSpringer Journals

Published: Jan 4, 2021

There are no references for this article.