Measurement and modeling of biomass and carbon storage of root and stump of poplar trees (Populus deltoids)

Subject Areas : natural resorces

Javid  Bahrian ¹ (PhD Student in Forestry Faculty of Natural Resources, Islamic Azad University, Lahijan Branch, Iran.)
Amir Hossein  Foirouzan ² (‌Assistant Professor, Faculty of Natural Resources, Islamic Azad University, Lahijan Branch, Iran. *(CorrespondingAuthor))
Ramin  Naghdi ³ (Professor, Faculty of Natural Resources, University of Guilan, Sowmeh sara, Iran.)
Seyedarmin  Hashemi ⁴ (Associte professor , Department of Forest Science and Engineering, Forest Management ,Lahijan Branch, Islamic Azad University, Lahijan, Iran.)

Received: 2021-08-19 Accepted : 2022-11-02 Published : 2022-12-22

Keywords: Carbon storage, Biomass, Plantation, wood farming,

Abstract :

Background and Objective: Climate change and global warming occur as a result of increasing greenhouse gases that have detrimental effects on human life on the planet, while forests have a very important impact on carbon storage. The purpose of this study was to measure and modeling of biomass and carbon storage of root and stump of Populus deltoids trees in plantations of Langaroud county, Guilan province.Material and Methodology: For this purpose, based on selection sampling method, 93 trees were selected from different diameter classes in spring of 2021 and after cutting and removing the sections, an excavator was used to remove the stumps and roots of the trees from the soil. To estimate the amount of biomass and carbon storage of tree roots and stumps, samples of these organs were fallen down and weighed, and after drying in the oven, the dry weight of the samples was measured. After burning an enough amount of dried samples in electric kiln, the weight of organic matter and carbon of the stump and root samples were obtained.    Findings: Results showed that mean of stump and root biomass were 7.99 and 65.5, and mean of stump and root carbon sequestration were 3.92 and 32.32 kg/tree, respectively. The results showed that the obtained models for estimating biomass and carbon storage of stumps and roots using three variables of stump diameter, DBH and volume of trees have a high coefficient of determination, but the model obtained using stump height did not provide an acceptable coefficient of determination. The results showed that the amount of carbon storage in the stumps and roots were 1.568 and 12.928 tons/hectare, respectively. Discussion and Conclusion: The results showed that knowledge of biomass and carbon storage of poplar trees is very important in valuation and management programs for the development of wood farming and the use of these organs to provide part of the needs of the wood industry.

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