List of Articles wood farming

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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 - Identification of the prone lands for wood farming by Eucalyptus in Khuzestan province using Fuzzy AHP
  Saeedeh Eskandari Sajad Ali Mahmoudi Samira Zandifar
  10.30495/girs.2020.672374
  Regarding stop industrial forests exploitation in northern Iran, this study was conducted to determine the suitable areas for wood farming by Eucalyptus in Khuzestan province using Fuzzy AHP and GIS. The indices used were included four main indices, water resources, lan More

  Regarding stop industrial forests exploitation in northern Iran, this study was conducted to determine the suitable areas for wood farming by Eucalyptus in Khuzestan province using Fuzzy AHP and GIS. The indices used were included four main indices, water resources, land use, climate and soil and 22 related sub-indices (Soil texture, soil depth, soil salinity, soil acidity, distance from the river, water volume, surface water salinity, groundwater depth, groundwater salinity, mean annual temperature, mean minimum annual temperature, mean maximum annual temperature, minimum absolute temperature, maximum absolute temperature, mean annual rainfall, mean annual relative humidity, mean annual wind speed, shrublands around the rivers, sandy hills, Jihad Nasr lands, empty lands around the Jihad Nasr channels, empty lands around the water resources). Maps of these factors were prepared using Google Earth satellite imagery (from summer of 2017 to 2019), ground sampling (September of 2019) and available data. Eucalyptus cultivation map in Khuzestan province was also prepared from Khuzestan Natural Resources Administration and ground sampling by GPS in September of 2019. The land use map was prepared by the digitization of land use/cover using Google Earth satellite imagery from summer of 2017 to 2019. Accuracy of land use map was evaluated by 60 ground control points. The weight of effective indices in Eucalyptus wood farming potential was calculated using Fuzzy AHP. For this purpose, 30 expert questionnaires (30 expert judgments) were distributed among the scientific and operating experts of wood farming to express the importance and priority of effective factors in wood farming. Then, the mean questionnaire was obtained and it was analysed by Chang triangular fuzzy extent analysis. Based on this method, the normal weights of the indices and sub-indices were calculated using Fuzzy AHP method. Using the linear weighted combination of effective sub-indices, maps of the main indices and then a map of Eucalyptus wood farming potential was prepared. Finally, the wood farming potential map was validated by Eucalyptus cultivation map and its accuracy was evaluated in identifying the suitable areas for Eucalyptus wood farming in Khuzestan province. The results showed that among the main indices, water resources and land use had the most importance in the determination of the prone lands for Eucalyptus farming in Khuzestan province based on the Fuzzy AHP. According to the results, 12.83% of the area had very good potential and 10.47% of the area had good potential for Eucalyptus farming.  The results of the accuracy assessment of wood farming potential map also showed that Fuzzy AHP with overall accuracy 82% had good accuracy in identification of the prone areas for wood farming in Khuzestan province. Manuscript profile