Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient
Data on tree biomass are essential for understanding the forest carbon cycle and plant adaptations to the environment. We determined biomass accumulation and allometric relationships in the partitioning of biomass between aboveground woody biomass, leaves and roots in Nothofagus antarctica. We measu...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Elsevier
2020
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| Online Access: | http://hdl.handle.net/20.500.12123/7648 https://www.sciencedirect.com/science/article/abs/pii/S037811270900913X https://doi.org/10.1016/j.foreco.2009.12.025 |
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| author | Gargaglione, Veronica Beatriz Peri, Pablo Luis Rubio, Gerardo |
| author_browse | Gargaglione, Veronica Beatriz Peri, Pablo Luis Rubio, Gerardo |
| author_facet | Gargaglione, Veronica Beatriz Peri, Pablo Luis Rubio, Gerardo |
| author_sort | Gargaglione, Veronica Beatriz |
| collection | INTA Digital |
| description | Data on tree biomass are essential for understanding the forest carbon cycle and plant adaptations to the environment. We determined biomass accumulation and allometric relationships in the partitioning of biomass between aboveground woody biomass, leaves and roots in Nothofagus antarctica. We measured above- and belowground biomass of N. antarctica trees across different ages (5–220 years) and crown classes (dominant, codominant, intermediate and suppressed) in three site qualities. The biomass allocation patterns were studied by fitting allometric functions in biomass partitioning between leaves (ML), stem and branches (MS) and roots (MR). These patterns were tested for all pooled data and according to site quality and crown classes. Biomass accumulation varied with crown class and site quality. The root component represented 26–72% of the total biomass depending on age and site. N. antarctica scaling exponents for the relationships ML vs. MS, MA vs. MR, and MS vs. MR were close to those predicted by the allometric biomass partitioning model. However, when biomass allocation was analyzed by site quality the scaling exponents varied following the optimal partitioning theory which states that plants should allocate more biomass to the part of the plant that acquires the most limiting resource. In contrast, the crown class effect on biomass partitioning was almost negligible. In conclusion, to obtain accurate estimations of biomass in N. antarctica trees the allometric approach appears as an useful tool but the site quality should be taken into consideration. |
| format | info:ar-repo/semantics/artículo |
| id | INTA7648 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA76482020-07-31T12:12:12Z Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient Gargaglione, Veronica Beatriz Peri, Pablo Luis Rubio, Gerardo Nothofagus Biomasa Alometría Biomasa por Debajo del Suelo Biomasa sobre el Suelo Biomass Allometry Below Ground Biomass Above Ground Biomass Nothofagus antarctica Data on tree biomass are essential for understanding the forest carbon cycle and plant adaptations to the environment. We determined biomass accumulation and allometric relationships in the partitioning of biomass between aboveground woody biomass, leaves and roots in Nothofagus antarctica. We measured above- and belowground biomass of N. antarctica trees across different ages (5–220 years) and crown classes (dominant, codominant, intermediate and suppressed) in three site qualities. The biomass allocation patterns were studied by fitting allometric functions in biomass partitioning between leaves (ML), stem and branches (MS) and roots (MR). These patterns were tested for all pooled data and according to site quality and crown classes. Biomass accumulation varied with crown class and site quality. The root component represented 26–72% of the total biomass depending on age and site. N. antarctica scaling exponents for the relationships ML vs. MS, MA vs. MR, and MS vs. MR were close to those predicted by the allometric biomass partitioning model. However, when biomass allocation was analyzed by site quality the scaling exponents varied following the optimal partitioning theory which states that plants should allocate more biomass to the part of the plant that acquires the most limiting resource. In contrast, the crown class effect on biomass partitioning was almost negligible. In conclusion, to obtain accurate estimations of biomass in N. antarctica trees the allometric approach appears as an useful tool but the site quality should be taken into consideration. EEA Santa Cruz Fil: Gargaglione, Veronica Beatriz. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Fil: Peri, Pablo Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Santa Cruz; Argentina. Universidad Nacional de la Patagonia Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Rubio, Gerardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires; Argentina 2020-07-31T12:08:43Z 2020-07-31T12:08:43Z 2010-03 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7648 https://www.sciencedirect.com/science/article/abs/pii/S037811270900913X 0378-1127 https://doi.org/10.1016/j.foreco.2009.12.025 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Forest Ecology and Management 259 (6) : 1118-1126 (March 2010) |
| spellingShingle | Nothofagus Biomasa Alometría Biomasa por Debajo del Suelo Biomasa sobre el Suelo Biomass Allometry Below Ground Biomass Above Ground Biomass Nothofagus antarctica Gargaglione, Veronica Beatriz Peri, Pablo Luis Rubio, Gerardo Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient |
| title | Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient |
| title_full | Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient |
| title_fullStr | Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient |
| title_full_unstemmed | Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient |
| title_short | Allometric relations for biomass partitioning of Nothofagus antarctica trees of different crown classes over a site quality gradient |
| title_sort | allometric relations for biomass partitioning of nothofagus antarctica trees of different crown classes over a site quality gradient |
| topic | Nothofagus Biomasa Alometría Biomasa por Debajo del Suelo Biomasa sobre el Suelo Biomass Allometry Below Ground Biomass Above Ground Biomass Nothofagus antarctica |
| url | http://hdl.handle.net/20.500.12123/7648 https://www.sciencedirect.com/science/article/abs/pii/S037811270900913X https://doi.org/10.1016/j.foreco.2009.12.025 |
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