جستجوی مقالات مرتبط با کلیدواژه « silvopastoral » در نشریات گروه « جنگلداری »

Galazani (pollarding) is a traditional silvopastoral system, which comprises disbranching and defoliation of oak trees to provide livestock fodder. This affects forest stand structure, tree architecture and growth. This study aimed to compare diameter increment between households’ forests (conventional territories) in different diameter classes and analyzing the effect of Galazani on both diameter increment and its trends. To obtain the goals, 16 Lebanon oak (Quercus libani Oliv.) trees in the Armardeh forest in the Kurdistan Province, western Iran, distributed in five family territories (as an indicator of how local owners treat their own forest) from different diameters were cut. The width of annual rings of the cross-sectional discs, which were taken from the trees, were measured via a LINTAB table equipped by a binocular with a precision of 0.01 mm. Results showed that mean annual increment (1.78 mm) was not significantly different amongst various diameters nor amongst different owners. Mean comparisons of diameter increment in the years after Galazani indicated that the increment in the first year after Galazani (1.34 mm) was significantly less than the second (2.11 mm), third (2.76 mm) and fourth (3.19 mm) years. The trend of diameter increment enhances the tree stability and supports forest structure in order to improve the tree growth. Furthermore, it is necessary to both extend Galazani rotation to at least five years and to limit its maximum allowable diameter. Based on our findings, practicing Galazani in large diameter trees (30 to 35 cm) significantly reduces diameter increment.

Agroforestry is one of the most important forms of utilization in Zagros forests. In the present study, Gandoman, Mirhesam, and Kokh-e Mamo allotments located in Armardeh region, in Baneh city of Kurdistan province, were selected. Strengths, weaknesses, opportunities, and threats (SWOT) were applied to provide the policy and planning of forest functions and services. SWOT was performed in internal system (strengths and weaknesses) and external system (opportunities and threats). Statistical population included 12 individuals of local people and 18 individuals of experts. According to the results of SWOT and Space Matrix, the appropriate strategy (aggressive, competitive, defensive or conservative) was identified and determined for non-wood products. The results of agroforestry systems indicated that local communities emphasized on long time reliance on forest (the most important weakness) and lack of compatibility with formal management programs (the most important threat), while experts (non-local communities) emphasized on reduction of high forest reproduction (the most important weakness), and decrease of biodiversity (the most important threat). In addition, local communities stated that the most important strength and opportunity of agroforestry systems were acceptance of local communities and reduction of rural-urban migration, respectively. Based on all stakeholders’ opinions, conservative management strategy was proposed for agrosilviculture, silvopastoral and agrosilvopastoral. To practice conservative management strategy, the opportunities should be applied and the weaknesses should be vanished.