List of Articles Carbon storage

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  1 - Measurement and modeling of biomass and carbon storage of root and stump of poplar trees (Populus deltoids)
  Javid Bahrian Amir Hossein Foirouzan Ramin Naghdi Seyedarmin Hashemi
  10.30495/jest.2023.62637.5474
  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 More

  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. Manuscript profile
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  2 - Evaluation of growth Feature of Populus deltoides and Taxodium distichum trees using stem analysis
  jamshid eslam dost hormoz sohrabi seyed mohsen hoseyni
  Tree growth has a great ecological and economic importance and stem analysis is one of the reliable and widely used methods which is used to study the growth of different attributes of the trees. In the present study, we evaluated diameter, basal area, and height and vo More

  Tree growth has a great ecological and economic importance and stem analysis is one of the reliable and widely used methods which is used to study the growth of different attributes of the trees. In the present study, we evaluated diameter, basal area, and height and volume growth of two fast growing species (namely Populus deltoides and Taxodium distichum). After falling down the trees, 5 centimeter thick disks at 2 meter intervals were collected and transported to the laboratory. The thickness of the annual rings was measured in two perpendicular directions up to1millimeter precision. The results showed that the highest value of the current growth of diameter of Populus deltoides and Taxodium distichum occurred in 4 and 6 year ages, respectively, equal to 1.5 and 5.4 cm and the highest value of the current basal area growth of Populus deltoides and Taxodium distichum occurred in 9 and 10 year ages, respectively, equal to 0.1 and 0.14 square meters. Furthermore, the highest value of the current growth of height of Populus deltoides and Taxodium distichum occurred in 6 and 9 year ages, respectively, with value of 1.3 m 3.1 m and the highest value of the current growth in the volume of Populus deltoides and Taxodium distichum occurred in 8 and 12 year ages, with a value of 0.094 and 0.1 cubic meters, respectively. Finally, there would be concluded that both of these species in such sites can meet the environmental needs such as green spaces as well as economic goals such as commercial wood product. Manuscript profile
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  3 - Evaluation of Enclosure Effects on Soil Carbon Storage (Case Study: Rangeland of Shahtappeh-Chah Mahmood and Chiro in Semnan Province)
  Maedeh Yousefian Khadijeh Mahdavi Mohammad Mahdavi Reza Tamartash
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