جستجوی مقالات مرتبط با کلیدواژه "کهگیلویه و بویراحمد" در نشریات گروه "جنگلداری"

Iran's Zagros forests have faced with the Dieback phenomenon in the recent decade. This crisis has become a major concern for stakeholders, including rural and nomadic communities. The success of dieback management involves the participation of these communities, who depends on the forests. This paper aims to investigate participation of rural communities in the decision making, developing, monitoring and evaluation of the oak forest trees dieback management projects. In this descriptive-explanatory study, the data were collected through structured interviews. A sample of 250 rural households living in the surrounding of the damaged forests in the Kohgiluyeh and Boyer-Ahmad province were randomly selected through a multi-stage sampling technique. The content validity of the questionnaire was assessed through a panel of experts and its reliability was confirmed using a pilot study and the Alpha Chronbach Test (0.662-0.981). A confirmatory factor analysis was utilized for analyzing construct validity. Most respondents had a poor participation in decision making, monitoring and evaluation in all the stages of dieback management activities. The participants were mostly in the position of the inactive information receivers or providers at the stage of diagnosing dieback and conserving the implemented projects. The participation was significantly and positively explained by variables such as the effect of dieback damage on rural household's livelihoods, forest area proportion infected with dieback, level of education, the financial abilities and knowledge to participate in the projects, interaction between rural households and external actors, participating in extension training courses, and financial support from external organizations to enhance participation.

In recent years, fundamental changes in the ecosystems of Zagros forest structure have occurred, including the decline of brant’s oak (Quercus bratii Lindl.) that is main species in this region. So this research intends to study trees decline in relation to sylviculture, topography, and soil characteristics. For this purpose, first, parts of forest that showed oak decline were identified by field survey and three plots were selected in every land form (elevation, slope, geographic directions and different land forms). 23 plots were totally selected in Dena area. In each plot physiographic variables, sylviculture parameters were recorded and then soil samples were collected for soil physicochemical experiments. Trees were categorized in three classes including low (0-15%), medium (15-30%) and high decline (>30%). Results of topography showed that high slopes and south directions had more decline, but soil factors showed no significant correlation with decline. The sylviculture results showed that low and medium diameter classes, the greater canopy area and the lower height of trees were more declined. In the other side, correlation results showed positive significant relationship between coppices shoot and decline percentage. In fact, trees in the form of coppice had the most declines. In general, it can be said that topography and forestry factors in the studied area are among the important factors affecting distribution of oak trees decline and situation and amount of dieback especially for small and coppice trees.

Forestry makes a significant contribution to the alleviation of poverty. We examine an area in south – west of Iran in province of Kohgiloie and Boier Ahmad, watershed of Tange Tamoradi. We applied poverty and inequality measures to rural household data set to explore the impacts of forest resource extraction on household welfare. For collecting data, we used questionnaire. According to poverty line for rural areas of province of Kohgiloie and Boier Ahmad, we measure these poverty indices: Head Count Ratio, Poverty Gap ratio, FGT and Sen in two stages (with and without forest income). For measuring income inequality, Gini coefficient in two staged (with and without forest income) was used. We also used simulations of changes in the indices of poverty to explore that if the rewards from certain categories of income are raised, what will happen for poverty indices. For all simulation (are chosen based on development document of province and our observation), the income from forestry was set equal to zero. We investigated their effects on poverty indices if income of household increases from other sources increase in the price of cucumber, improving rural road condition, cultivate and collect Myrtus communis, fishery and orchard. Forest income contributed significantly to household's total income. Our findings suggested that natural resource extraction reduces both poverty and inequality, so that restricting access to forest will increase poverty. Results showed that increases in household income from all scenarios take a significant number of households above the poverty line and significant effect on poverty indices. The results of this study can help to improve rural household welfare and forest conservation.