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Effect of gap size on quantitative characteristics of regeneration groups in a Parrotio-Carpinetum forest type (Shastkola forest) | ||
| تحقیقات جنگل و صنوبر ایران | ||
| Article 13, Volume 20, Issue 3 - Serial Number 49, September 2012, Pages 504-493 PDF (263.43 K) | ||
| Document Type: Research article | ||
| DOI: 10.22092/ijfpr.2012.107455 | ||
| Authors | ||
| Mehrdad Zoghi* 1; Ramin Rahmani2; Eslam Shayesteh Pahangeh1 | ||
| 1MSc graduate Student, Dept. of Silviculture and Forest Ecology, Faculty of Forest Science, Gorgan University of Agricultural Science and Natural Resources | ||
| 2Associate prof., Dept. of Silviculture and Forest Ecology, Faculty of Forest Science, Gorgan University of Agricultural Science and Natural Resources | ||
| Abstract | ||
| In this study, in order to investigate regeneration success and determine the best gap area, the quantitative characteristics of the regeneration groups were evaluated at different gap area classes. For this purpose, 15 regeneration gaps were selected at three area classes with five replications at each class, including: 50-150 (small), 150-300 (medium) and 300-600 m2 (large). Four square meter plots at two meter intervals were used to measure some quantitative characteristics of the regeneration groups by a simple systematic design on north-south (N-S) and east-west (E-W) transects. The data was analyzed, using the completely randomized statistical design and one way variance analysis and Duncan test methods. The Results showed that the total height and the height growth of the saplings were significantly higher in the large gaps in comparison to the small gaps. In addition, the frequency of seedlings and the density of sapling were the greatest in the medium sized gaps. For this reason seedling frequency of Carpinus betulus and Parrotia persica was found in the medium sized gaps. Overall, it can be concluded that in the selection cutting method, the medium sized gaps (150-300 m2) are the most suitable ones. | ||
| Keywords | ||
| Gap; regeneration; sapling; carpinus; selection system | ||
| References | ||
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