Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan province
Afforestation is one of the most important tools in creating green cover and providing wood supply. The aim of current study was to investigate the growth and performance of 25-year-old afforestation's in the Radar-Poshteh region of Guilan province. In this study, eight sample plots of 400 sq...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | fas |
| Published: |
Iranian Society of Forestry
2022-05-01
|
| Series: | مجله جنگل ایران |
| Subjects: | |
| Online Access: | http://www.ijf-isaforestry.ir/article_151746_304c34d741cfb0d8fc95497fbb07b0ac.pdf |
| _version_ | 1797984051362004992 |
|---|---|
| author | A. Ebrahimi Ashbella M.M. Fallahchai A. Salehi A.A. Soltani Tolarood |
| author_facet | A. Ebrahimi Ashbella M.M. Fallahchai A. Salehi A.A. Soltani Tolarood |
| author_sort | A. Ebrahimi Ashbella |
| collection | DOAJ |
| description | Afforestation is one of the most important tools in creating green cover and providing wood supply. The aim of current study was to investigate the growth and performance of 25-year-old afforestation's in the Radar-Poshteh region of Guilan province. In this study, eight sample plots of 400 square meters in four 3.5-hectare stands of maple, black alder, chestnut leaved oak and loblolly pine were executed by randomized systematic method and within each sample plot, diameter, height, trunk length without branches, large and small diameter of the crown were measured. Litter depth was also measured at ten points in the sample plots with a ruler. Also, the quality of tree trunks was divided into three categories: grade 1, 2 and 3. Using the collected data, the most important quantitative and qualitative indicators of the four stands were extracted and statistically compared. Also, the biomass of the trees was estimated using the reported allometric equations for the studied species. Based on the results, the highest average diameter (33.42 cm), diameter growth (1.23 cm), highest basal area (78.43 m2/ha), volume (763.98 m3/ha), biomass (971.5 ton/ha), grade 1 trunks (92%), litter thickness (8.6 cm) and the lowest height form factor (0.78) were obtained for loblolly pine stand. Among the native broadleaf species, the highest volume and biomass were calculated with 458 m3 and 520.75 ton/ha for alder species, respectively. Therefore, loblolly pine due to its high production (Controlled in non-forest lands) and chestnut leaved oak due to its high yield along with the production of high quality timbers are recommended for afforestation in Guilan province. |
| first_indexed | 2024-04-11T06:55:37Z |
| format | Article |
| id | doaj.art-4afee24e7f814c76980168d27452a80d |
| institution | Directory Open Access Journal |
| issn | 2008-6113 2423-4435 |
| language | fas |
| last_indexed | 2024-04-11T06:55:37Z |
| publishDate | 2022-05-01 |
| publisher | Iranian Society of Forestry |
| record_format | Article |
| series | مجله جنگل ایران |
| spelling | doaj.art-4afee24e7f814c76980168d27452a80d2022-12-22T04:39:02ZfasIranian Society of Forestryمجله جنگل ایران2008-61132423-44352022-05-01141152610.22034/ijf.2021.281776.1776151746Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan provinceA. Ebrahimi Ashbella0M.M. Fallahchai1A. Salehi2A.A. Soltani Tolarood3Ph.D. Student of Forestry, Dept. of Forestry, Lahijan Branch, Islamic Azad University, Lahijan, I. R. IranAssociate Prof., Dept. of Forestry, Lahijan Branch, Islamic Azad University, Lahijan, I. R. IranAssociate Prof., Dept. of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, I. R. IranAssociate Prof., Dept. of Soil Science Engineering Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardebili, Ardebili, I. R. IranAfforestation is one of the most important tools in creating green cover and providing wood supply. The aim of current study was to investigate the growth and performance of 25-year-old afforestation's in the Radar-Poshteh region of Guilan province. In this study, eight sample plots of 400 square meters in four 3.5-hectare stands of maple, black alder, chestnut leaved oak and loblolly pine were executed by randomized systematic method and within each sample plot, diameter, height, trunk length without branches, large and small diameter of the crown were measured. Litter depth was also measured at ten points in the sample plots with a ruler. Also, the quality of tree trunks was divided into three categories: grade 1, 2 and 3. Using the collected data, the most important quantitative and qualitative indicators of the four stands were extracted and statistically compared. Also, the biomass of the trees was estimated using the reported allometric equations for the studied species. Based on the results, the highest average diameter (33.42 cm), diameter growth (1.23 cm), highest basal area (78.43 m2/ha), volume (763.98 m3/ha), biomass (971.5 ton/ha), grade 1 trunks (92%), litter thickness (8.6 cm) and the lowest height form factor (0.78) were obtained for loblolly pine stand. Among the native broadleaf species, the highest volume and biomass were calculated with 458 m3 and 520.75 ton/ha for alder species, respectively. Therefore, loblolly pine due to its high production (Controlled in non-forest lands) and chestnut leaved oak due to its high yield along with the production of high quality timbers are recommended for afforestation in Guilan province.http://www.ijf-isaforestry.ir/article_151746_304c34d741cfb0d8fc95497fbb07b0ac.pdfmaplechestnut-leaved oakaldervolumebiomass |
| spellingShingle | A. Ebrahimi Ashbella M.M. Fallahchai A. Salehi A.A. Soltani Tolarood Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan province مجله جنگل ایران maple chestnut-leaved oak alder volume biomass |
| title | Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan province |
| title_full | Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan province |
| title_fullStr | Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan province |
| title_full_unstemmed | Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan province |
| title_short | Evaluation of 25-year-old afforestation's of loblolly pine, black alder, velvet maple and chestnut leaved oak in Radar Poshteh area of Guilan province |
| title_sort | evaluation of 25 year old afforestation s of loblolly pine black alder velvet maple and chestnut leaved oak in radar poshteh area of guilan province |
| topic | maple chestnut-leaved oak alder volume biomass |
| url | http://www.ijf-isaforestry.ir/article_151746_304c34d741cfb0d8fc95497fbb07b0ac.pdf |
| work_keys_str_mv | AT aebrahimiashbella evaluationof25yearoldafforestationsofloblollypineblackaldervelvetmapleandchestnutleavedoakinradarposhtehareaofguilanprovince AT mmfallahchai evaluationof25yearoldafforestationsofloblollypineblackaldervelvetmapleandchestnutleavedoakinradarposhtehareaofguilanprovince AT asalehi evaluationof25yearoldafforestationsofloblollypineblackaldervelvetmapleandchestnutleavedoakinradarposhtehareaofguilanprovince AT aasoltanitolarood evaluationof25yearoldafforestationsofloblollypineblackaldervelvetmapleandchestnutleavedoakinradarposhtehareaofguilanprovince |