Regression models of carbon and CO₂ sequestration of hybrid poplar plantations in northern Serbia

Abstract

This research is based on creating regression models as follows: 1. Total carbon sequestration, 2. Total carbon dioxide (CO<sub>2</sub>) sequestration and carbon credit (CO<sub>2</sub>e) generation, 3. Annual carbon sequestration and 4. Annual CO<sub>2</sub> sequestration and annual carbon credit generation (CO<sub>2</sub>e). The research was carried out in plantations of the species Populus x euramericana (Dode) Guinier clone I-214. In addition to the field research, a modeling framework for quantifying carbon sequestration in forest ecosystems CO<sub>2</sub>FIX var 3.1 was used to calculate stored carbon. Analysis of collected samples of branches and leaves was performed using CHN Vario EL III analyzer. The results of the research indicated that the total sequestration of carbon (C) for a thirty-year production cycle was 78.58 tC ha<sup>-1</sup>, while the average value for all years of a thirty-year production cycle was 44.02 tC ha<sup>-1</sup>. The average annual sequestration of carbon for all years of a thirty-year production cycle was 2.62 tC ha<sup>-1</sup>yr<sup>-1</sup>, while the average annual sequestration of carbon dioxide, or average annual changes in CO<sub>2</sub> stocks for all years of a thirty-year production cycle was 9.60 tCO<sub>2</sub> ha<sup>-1</sup>yr<sup>-1</sup>.

Early Dynamics of Carbon Accumulation as Influenced by Spacing of a Populus deltoides Planting

“…Afforestation of land that was deforested for agricultural production offers an effective means for re-building depleted terrestrial carbon stocks, while also restoring a range of other ecosystem functions and services associated with forests [39,[49][50][51][52]. Though investment in afforestation is economically dubious, many have argued that fast-growing tree species, such as poplars, can play a central role in this climate mitigation approach because of their silvical characteristics and domestication that facilitate afforestation success, their effectiveness in promoting recovery of important forest ecosystem processes, their demonstrated utility for quickly developing carbon-storing forest structure, and their flexibility in an application for multiple management objectives compatible with carbon accumulation and storage [9,15,24,38,39,52].…”