Spatial pattern and disease severity of charcoal canker in Hyrcanian forests, north of Iran
نویسندگان
چکیده
منابع مشابه
Morphotypes of Tilia spp. fruits in Hyrcanian forests
Variations in fruits morphology of Tilia spp. were studied along longitudinal and altitudinal range. Ten populations of Tilia spp.from Golestan, Mazandaran and Gilan Provinces (N. Iran) were selected. After biometrical measurements and Scanning Electron Microscopic (SEM), Cluster Analysis divided the population into seven groups. Discriminat Analysis showed that among all traits studied, size o...
متن کاملan investigation on the forest structure and trees spatial pattern in fagusorientalis stands of hyrcanian forests of iran (case study: gorazbon district of kheyrud forest)
beech forests in midland areas of hyrcanian forests of iran are the most important forests having the highest degree of naturalness. these forests are the valuable source of wood production and other forest products. one of the most important characteristics of plant communities is the spatial pattern of trees. ecological process in forest ecosystems are directly influenced by the spatial patte...
متن کاملModeling the Degradation of Hyrcanian Forests Using Logestic Regression Method (Case Study: Shenrood Forests, Guilan)
Having accurate quantitative and qualitative information about the state of forest stands, is necessary for any basic management and planning, to reduce the effects of forest degradation. The current study aimed to model the destruction of Hyrcanian forests under the effects of density and volume (per hectare) variables, using logistic regression. In total, 252 plots of 1000 m2 area were measur...
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ژورنال
عنوان ژورنال: Journal of Forest Science
سال: 2016
ISSN: 1212-4834,1805-935X
DOI: 10.17221/4/2015-jfs