Effects of Management on the Amount and Characteristics of Woody Debris in Mixed Stands of Caspian Forests
| Autor: | Omid Ghafarzade Mollabashi, Neda Amirahmadi, Farshad Keivan Behjou |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Environmental Engineering
Forest management Agroforestry lcsh:Biotechnology Bioengineering Forestry Caspian forests Debris Hardwood forest Functional integrity lcsh:TP248.13-248.65 Forest ecology Mixed stand Environmental science Coarse woody debris Waste Management and Disposal Woody debris Line intersect method |
| Zdroj: | BioResources, Vol 9, Iss 3, Pp 4108-4116 (2014) |
| ISSN: | 1930-2126 |
| Popis: | Woody debris (WD), including coarse woody debris (CWD) and fine woody debris (FWD), is an essential structural and functional component of forest ecosystems. This study was carried out in Caspian hardwood forest sites. In this study, the volume and composition of WD were inventoried by line intersect sampling and fixed area plot sampling in unmanaged and managed forests on 6 compartments (3 managed and 3 unmanaged). Estimates of the total volume of WD in managed and unmanaged forests ranged from 11.9 m3.ha-1 to 25.82 m3.ha-1, respectively. The results of independent t tests indicated that the amount of CWD in the unmanaged forests was significantly higher than CWD in the managed ones (t22, 0.05 = 2.64, P = 0.015). Also, the results of independent t tests indicated that the amount of FWD in the managed forests was significantly higher than FWD in unmanaged forests (t4, 0.05 = 5.07, P = 0.007). In the unmanaged forests, WD in decay classes 3, 4, and 5 accounted for 77% of the total WD volume, but in the managed forests, WD in decay classes 1 and 2 accounted for 87% of the total WD volume. The results suggest preserving the current unmanaged forests (protected forests) and maintaining the structural and functional integrity of woody debris. |
| Databáze: | OpenAIRE |
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