the aim of this study was to develop an optimal sustainable forest plantation based on goal programming and analytic hierarchy process (ahp) methods. this study was carried out in guilan province, north of iran. first of all, the ecological capability of the study area for plantation establishment/maintenance was evaluated based on multi-factor method and specific ecological makhdoum model by m...

 Itacorubi, Ratones, Rio Tavares and Saco Grande are natural mangrove forests in the western part of Santa Catarina Island, in southern Brazil. Thirty-three basidiomycetes were identified during a survey of xylophilous basidiomycetes in these mangrove forests from May 2005 to August 2006. The species are distributed among 9 families and 24 genera. Fifteen species are new records from mangrove ...

The use of remote sensing techniques as a suitable solution to estimate the levels of species diversity is of high importance for the sustainable management of forests. In order to investigate the potential of using sensor data from Landsat 7 ETM+ to estimate species diversity in the Zagros forests, digital data related to the August 7, 2002 from forests in the Qalajeh Kermanshah Province were ...

Physiological factors have effects on most forest parameters such as forest classification so that understanding knowledge about this subject is important to manage forests. The forests of Sorkhake-sanjabi village with area of 1645 ha located in Eslam Abad city, Kermanshah province, Iran were selected. 23 sample plots with rectangular shape (40m*50m) were selected and the species, origin of spe...

The goal of this study is to analyze the floristic patterns and the structure of disturbed and undisturbed upland forests, in Permanent Preservation Areas (PPAs) along the Moju river, in the Brazilian state of Pará. Trees with a diameter equal to or larger than 10cm at 1.30m from the ground (DBH) ≥10cm were analyzed for the upper stratum. For the middle stratum, individuals with DBH between 4.9...

The redwood forests support an unknown but large number of invertebrate species and, over all seasons, more than two hundred species of vertebrates (A. Cooperrider, unpub. comp.). Beyond this, knowledge of the redwoods fauna is surprisingly limited. Despite the enormous public attention that has been focused on redwood forests in recent years, comparatively little has been written about the eco...

We tested the heterogeneity/productivity hypothesis with respect to the abundance and richness of birds and the vegetation density hypothesis with respect to birds' nest predation rates, and determined the relative importance of forested vegetation formations for the conservation of birds in the Pantanal. We estimated the apparent nesting success, and the abundance and richness of nesting birds...

Within-stand species richness of tropical rain forests is typically high, so that it is not unusual for more than 200 species, including more than 100 tree species, to coexist within 1 ha of tropical rain forest (Whitmore, 1984; Gentry, 1988). However, not all tropical forests have high species richness. Forests growing in suboptimal environments can have reduced richness of higher plants, some...

Mapping forest extent and cover classification are important for the assessment of resources in socio-economic as well ecological terms. Novel developments availability remotely sensed data, computational resources, advances areas statistical learning have enabled fusion multi-sensor often yielding superior results. Most former studies nemoral forests fusing multi-temporal data been limited spa...