Productivity of first and second rotation stands of radiata pine on sandy soils II. Height and volume growth at five years

Changes in total carbon and nutrients in soil profiles and accumulation in biomass after a 30-year rotation of Pinus radiata on podzolized sands: Impacts of intensive harvesting on soil resources

“…Productivity during the first rotation was relatively high on these infertile coastal sands but growth of the second rotation established after clear-felling and burning residues declined by 25-30% (Keeves, 1966). Subsequently studies showed that inter-rotational management of the forest floor and harvesting residues aimed at conserving organic matter and nutrients was critical to maintain the productive capacity of these soils Farrell, 1984;Squire et al, 1985;Smethurst and Nambiar, 1990a,b). These studies showed that burning of harvesting residues after the first rotation did cause a decline in productivity of the second rotation while retention of residues was shown to maintain or enhance early growth of radiata pine.…”

Modelling the Sustainability of Forest Production and Yield for a Changing and Uncertain Future

“…Lundmark 1977, Andersson 1984, Squire 1983, Messina etal. 1985, Squire et a/. 1985, Dyck and Skinner 1990, abundant evidence of slower tree growth on infertile sites than on fertile sites, and evidence that tree growth is limited by nutrient shortages in all the forest regions of Canada (Mahendrappa et a/.…”

Site Preparation and Fertilization Effects on Growth of Slash Pine for Two Rotations

“…In Australia, the productivity of the second compared with the first rotation of an introduced species, radiata pine (Pinus rudiuru D. Don), has been reported to be less (Keeves, 1966), the same (Gentle et al, 1986), or more (Squire et al, 1985). Identified or suspected causes of changes in productivity include damage from site preparation burning (Keeves, 1966), nutrient depletion (Squire et al, 1985)) and weather conditions at time of planting (Boardman, 1978).…”

“…Identified or suspected causes of changes in productivity include damage from site preparation burning (Keeves, 1966), nutrient depletion (Squire et al, 1985)) and weather conditions at time of planting (Boardman, 1978). When the same site is used to compare productivity between successive rotations, difficulties may arise because of variations in genotype, establishment techniques, and weather (Squire et al, 1985).…”

“…However, using the same site does eliminate variation in the soil and site. Because of the above studies, declines due to specific management practices (Keeves, 1966) have been corrected, leading to increased productivity (Squire et al, 1985).…”