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      • Open Access Article

        1 - Assessing Ecological Capacity for Afforestation and Increasing Forest area Use Gamma and AHP Operator Efficiency
        sahar tabibian Armin Hashemi Amirhosein Firouzan Mahsa HakimiAbed sirus bidarigh hamideh kavusi
        Background and aim: The aim of this study is to investigate the ecological potential of the land in order to increase the level of afforestation.Method: Initially, gradient maps, altitudes above sea level, geographical directions, temperature, rainfall, humidity, soil, More
        Background and aim: The aim of this study is to investigate the ecological potential of the land in order to increase the level of afforestation.Method: Initially, gradient maps, altitudes above sea level, geographical directions, temperature, rainfall, humidity, soil, canopy percentage with digitizing data received from relevant organizations and agencies. To evaluate ecological capability, fuzzy membership functions were standardized. In the following, the criteria used in the evaluation were prioritized based on multi-criteria evaluation and analytical hierarchy process and using the Expert selection software, the final weight was determined for each criterion.Findings: The criterion of altitude from the sea level has the highest value in the criteria and the criterion of gradient has the lowest value in the criteria. The results of this study showed that ecological power is directly related to ecological factors, especially climatic and physiographic factors. The results of the ecological capability assessment for afforestation operations with AND activated show that 5566 hectares of land are located in a very high class. The results of ecological capability assessment for afforestation with gamma activated show that 3098 hectares from the area are very large in class.Discussion and Conclusion: Finally, considering that about 60% of the area of the study area is covered with forest, according to the results of ecological power assessment for forestry, this study can be effective in recognizing the forestry potential and as a result of forestry development in this region. Manuscript profile
      • Open Access Article

        2 - Study on Growth Performance of Pinus Brutia Ten in the Oldest Plantation Stand of in Khorramabad
        akram latifi nia Javad Soosani kamran adeli esmat ostakh samane namdari
        Background and Objective: The study growth performance of afforestation and adaptation species planting in the new region increasing succes the future afforestation. The aim of this study is growth performance of Pinus brutia Ten in the plantation stand (ca. 41 ha and 2 More
        Background and Objective: The study growth performance of afforestation and adaptation species planting in the new region increasing succes the future afforestation. The aim of this study is growth performance of Pinus brutia Ten in the plantation stand (ca. 41 ha and 2×3 m spacing) located in the north part of the khoramabad city.Method: For this purpose, 5 pine trees were randomly selected and cut. current annual increment volume obtained by trunk analysis. 35 samples were taken from Pinus Brutia trees at breast height by increment borer for closer examination. in the study area and according to regression analysis, the annual volume increment of these 35 samples were obtained and finally the data of annual increment were extracted from 40 Pinus Brutia trees.Findings: Results showed in comparison to Pinus Bruttia afforestation of origin (Turkey), Annual growth volume in hectare less growth Volume and Average growth volume and Dominant Height (DH) more. Generally, region located between good and medium site conditions. Also in the study Mean annual increment Pinus Brutia befor 30 years is 11.95 m3/ha.Discussion and Conclusion: This growth performance showes fast growing and adaptation species to ecological conditions region. Therefore, regions with same ecological conditions can be considered as suitable sites for, pinus brutia plantation for the industrial wood production and paper industry suppliers to avoid excessive outflow of currency from the country.  Manuscript profile
      • Open Access Article

        3 - Soil Variability Affecting by Trees rooting and Canopy Coverage in Hassan-Abad Sanandaj Afforestation
        shetav saedi hashem habashi vahid hosseini
        Abstract   In this study trees crown covering and rooting effects on soil characteristic varability were studied. For this purpose, 4species include:pinus nigra, Cupressus arizonica, Fraxinus rotundifolia and Robinia pseudoucacia were selected with 43 years&ndash More
        Abstract   In this study trees crown covering and rooting effects on soil characteristic varability were studied. For this purpose, 4species include:pinus nigra, Cupressus arizonica, Fraxinus rotundifolia and Robinia pseudoucacia were selected with 43 years–aged affores tostion in Hasnabad–Sanandaj 22 rectungle sample plot (900m2) were chosen and allometric trees data include:DBH, height and Crown diameter were measured then annual DBH & height incremevt were calcuted. We computed crown covering percentage in plot after 43 years. Then 112 Auger soil samples in 0-20 and 20-40 cm depth around of selected trees were taken afterward subsequently physical and chemical soil characteristics were determined Roots separated by washing then volume, wet weight and dry weight were determind. Comperation   physical and chemical soil properties under canopy and around tree in different variation shown that after 43 years afferece on soil charecteris. Finally pinus nigra introduce as the best afforestation and much compatible species. Manuscript profile
      • Open Access Article

        4 - Soil Erosion Reduction by Implementing a Carbon Sequestration Project in East of Iran
        Atefeh Gholami Amir Sadoddin Majid Ownegh Mohsen Hosseinalizadeh Alireza Yari