Spatial Pattern and Characteristic of Tree-fall Gaps to Approach Ecological Forestry in Northern Iran
Publish place: Environmental Resources Research، Vol: 5، Issue: 1
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
View: 508
This Paper With 11 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_IJERR-5-1_005
تاریخ نمایه سازی: 17 مهر 1398
Abstract:
Gaps created by falling trees (tree-fall gaps) are a natural disturbance in forest ecosystems. Understanding scale, pattern and the effect of gaps on regeneration is important to current and future forest management. The aim of this study was to determine the size, shape and the spatial pattern of tree-fall gaps and of associated regeneration. This study was carried out in three parcels (No.15, 18 and 19) of second District Shastkalateh forest in northern Iran. The size, location and regeneration of all tree-fall gaps were measured in these parcels. One way ANOVA was used to compare gap features and regeneration and Spearman’s rank correlation coefficient was used to test the relationship between gap size and regeneration density. The results showed that the total area of gaps created by tree-fall in three parcels was 13.72 ha, or 7.4% of the total area, and on average there were 1.06 gaps per hectare. Gap size ranged from 49 m2 to 1827m2, with mean gap size being 658.2m2. Most (69.2%) gaps were 200 m2 to 1000 m2. Results of spatial pattern analysis showed both uniform and irregular shapes for gaps in three parcels. ANOVA analysis showed a statistically significant difference between gap size and regeneration density and the Spearman rank correlation showed a direct relationship between gap size and the number of seedlings. These results provide information to enable forests to be managed according to ecological principles.
Keywords:
Authors
Mohamad Hadi Moayeri
Associate Professor of Forestry, Faculty of Forestry and wood technology, Gorgan University of Agricultural Sciences & Natural Resources, Gorgan, Iran
Alireza Hajivand
Ms graduate of forestry, Faculty of Forestry and wood technology, Gorgan University of Agricultural Sciences & Natural Resources, Gorgan, Iran
Shaban Shataee Joybari
Associate Professor of Forestry, Gorgan University of Agricultural Sciences & Natural Resources, Gorgan, Iran
Saeed Rahbari Sisakht
۱- Faculty of Forestry and Wood Technology, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :