Results 271 to 280 of about 2,302,708 (308)

Strategy to convert an even-aged stratified stand to an uneven-aged mixed species stand

2009
This thesis is the initial step of a long term study to evaluate and monitor a selection silviculture system applied to a 38.9 hectares private woodlot in the Golden moist-warm variant, of the Interior Cedar Hemlock (ICHmw1) zone. It establishes the selection silviculture parameters designed to convert an even-aged stratified mixed species stand ...
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Ageing with long-standing hearing impairment and deafness

International Journal of Rehabilitation Research, 2000
Until recently, ageing with a long-standing disability had not been a major consideration for governments around the world. Policy and planning for this substantial subgroup had not kept abreast with developments in regard to the growing numbers of older people in general. Consultations held in Australia provided information and recommendations for use
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Stand and tree dynamics in uneven-aged interior Douglas-fir stands

2009
The Interior Douglas-fir Biogeoclimatic Zone covers 4 million hectares in the southern interior of British Columbia. This zone is dominated by interior Douglas-fir forests which are valued for their timber, wildlife, range and recreational values. Interior Douglas-fir can be found growing naturally in uneven-aged structured stands; a structure that ...
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Size-Class Models for Even-Aged Stands

2012
Size-class models make use of information from inventories of trees by diameter classes avoiding the necessity of assuming a particular distribution for tree diameters. Tree populations can be divided into groups, commonly called cohorts, based on species, diameter, height or a combination of these and other characteristics.
Harold E. Burkhart, Margarida Tomé
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Dynamics of an Uneven-Aged Forest Stand

Forest Science, 1972
Abstract The components of net growth for number of trees and basal area are described as a system of first-order, ordinary differential equations for an uneven-aged forest stand. Data from a 6-year period are utilized to estimate coefficients for the governing equations. Thirteen successive years of historical data are subsequently used
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Individual-Tree Models for Even-Aged Stands

2012
Individual-tree models consist of a system of equations to simulate stand dynamics by incrementing each tree during a growth period in relation to its growing conditions. Tree growth and mortality are aggregated to provide estimates of stand growth and yield.
Harold E. Burkhart, Margarida Tomé
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Diameter-Distribution Models for Even-Aged Stands

2012
Overall stand volume is sufficient for many purposes, but effective forest management and planning often requires information about the distribution of volume by size and product classes. This chapter provides an in-depth treatment of techniques for estimating yields by size class using a distribution function approach.
Harold E. Burkhart, Margarida Tomé
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Even-Aged Development of Mixed-Species Stands

Journal of Forestry, 1980
Abstract Forests in the eastern and northwestern United States often develop in even-aged patterns, with certain species predictably forming the upper canopy and others relegated to lower strata. The vertical sorting (or stratification) by species and broad ranges of diameters has sometimes led foresters and ecologists to assume these ...
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Modern developments in germline pharmacogenomics for oncology prescribing

Ca-A Cancer Journal for Clinicians, 2022
Natalie M Reizine, Peter H O'donnell
exaly  

Integration of two-dimensional materials-based perovskite solar panels into a stand-alone solar farm

Nature Energy, 2022
Sara Pescetelli, Antonio Agresti, Georgios M Viskadouros   +2 more
exaly