Managing plantation density through initial spacing and commercial thinning: yield results from a 60-year-old red pine spacing trial experiment
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چکیده
منابع مشابه
Maximum growth potential in loblolly pine: results from a 47-year-old spacing study in Hawaii
Growth, allocation to woody root biomass, wood properties, leaf physiology, and shoot morphology were examined in a 47-year-old loblolly pine (Pinus taeda L.) density trial located in Maui, Hawaii, to determine if stands continued to carry the high density, basal area, and volume reported at younger ages and to identify potential factors controlling expression of maximum growth potential. Basal...
متن کاملThe effects of spacing and thinning on stand and tree characteristics of 3 g-year-old Loblolly Pine
The effects of early and continuous density control on tne characteristics of mature loblolly pine (Pinus tuedu L.) were measured at age 38 and analyzed. Trees in plots planted at spacings of 1.8x 1.8, 2.4x2.4, 2.7x2.7, 3.0x3.0, and 3.7x3.,7 m were either left unthinned or thinned every 5 years beginning at age 18, to residual basal areas of 27.5, 23.0, 18.4, and 13.8 m2 haa’. Trees thinned fro...
متن کاملEffects of initial spacing on some allometric characteristics of 12-year-old Quercus castaneifolia plantation in central Mazandaran, Iranian Caspian forests
The effects of initial spacing layout on some allometric characteristics of 12-year-old Quercus castaneifolia trees grown in Central Mazandaran, north of Iran were examined. Trees were planted in 5 different layouts (1?1, 1.5?1.5, 2?2.5, 2?3 and 4?4 m). Tree height, diameter at breast height, natural pruning height and the survival of trees were recorded in each sample plot. Tree basal area and...
متن کاملThinning in a 28-year-old Water Oak Plantation in North Louisiana: Seven-year Results’
A Pl-acre. 28-year-old water oak (Quercus nigra L.) plantation on in old-field loessial site near Winnsboro, LA. was subjected to three thinning treatments during the winter of 1987-88: (1) no thinning, (2) light thinning to 180 dominant and codominant trees per acre, and (3) heavy thinning to 90 dominant and codominant trees per acre. Prior to thinning, the plantation averaged 356 trees and 86...
متن کاملBiomass partitioning in a miniature-scale loblolly pine spacing trial
Stand conditions influence the partitioning of biomass to stem, needle, branch, and root components. Using data from 4to 6-year-old loblolly pine (Pinus taeda L.) trees grown in a miniature-scale spacing trial, this study determined the effect of initial spacing on the biomass partitioning of loblolly pine. Multivariate analysis of variance procedures concluded that row and column spacing did n...
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ژورنال
عنوان ژورنال: Canadian Journal of Forest Research
سال: 2021
ISSN: 0045-5067,1208-6037
DOI: 10.1139/cjfr-2020-0246