The ecology of even-aged forest plantations
نویسندگان
چکیده
منابع مشابه
Spatial Variability of Turbulent Fluxes in the Roughness Sublayer of an Even-aged Pine Forest
The spatial variability of turbulent flow statistics in the roughness sublayer (RSL) of a uniform even-aged 14 m (= h) tall loblolly pine forest was investigated experimentally. Using seven existing walkup towers at this stand, high frequency velocity, temperature, water vapour and carbon dioxide concentrations were measured at 15.5 m above the ground surface from October 6 to 10 in 1997. These...
متن کاملThe Application of Bayesian Model Averaging in Compatibility of Stand Basal Area for Even-Aged Plantations in Southern China
Stand growth-and-yield models include whole-stand models, individual-tree models, and diameter distribution models. Based on the growth data of Chinese fir (Cunninghamia lanceolata [Lamb.] Hook.) in Fenyi County, Jiangxi Province, in southern China, Bayesian model averaging (BMA) was used to forecast stand basal areas by combining these three types of models into a single predictive model. BMA ...
متن کاملevaluation variation trend in qualitative measures in natural even-aged stand in kheyroud forest
in this research with using of obtained information from a natural fraxinus the variation of quantities and qualitative measures of current stand in an 8 year period was conducted in chelir part of kheyroud forest. data collection was conducted by full callipering method in two periods of 1384 and 1392. during the period of study the parameters of dominant mean height and relative crown height ...
متن کاملa study on the dimensional characters of even-aged and mixed fraxinus excelsior stand (case study: chelir district, kheyrud forest)
knowing and conducting studies on size characters of trees is essential for assessing the tree volumeand/or other statistical parameters and also forest management. the characteristics of 529 treesincluding diameter at breast height (dbh) and total height were measured in an even-aged fraxinusstand for two periods from 2005 to 2012 in chelir district, a part of experimental kheyrud forest.resul...
متن کاملForest Ecology
Fire is a potentially powerful tool for achieving desired conditions of forest ecosystems. From an ecological perspective, the use of fire requires affirmative answers to either of the following questions: (1) Does it increase ecosystem health and sustainability? and (2) Does it preserve or restore unique species or habitats? Health and sustainability can be measured and defined in terms of: (1...
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ژورنال
عنوان ژورنال: Forest Ecology and Management
سال: 1979
ISSN: 0378-1127
DOI: 10.1016/0378-1127(79)90058-6