Keyword: soil
- Research Branch Project: E.P. 1193
http://www.for.gov.bc.ca/hre/projects/projects/0006.htm
Relative growth rate and biomass allocation of paper birch (Betula papyrifera) populations under different soil moisture and nutrient regimes ...
- Research Branch Project: E.P. 1204
http://www.for.gov.bc.ca/hre/projects/projects/0009.htm
Both Armillaria species were identified in all of the subzones sampled and from all but one of the sites surveyed in 1996. Armillaria ostoyae was found in the wetter variants of the dry subzones and in the dryer variants of the wet subzones. Conversely, A. sinapina was found in almost all subzones and variants. Armillaria ostoyae was isolated most commonly from the dead roots of conifers (61%) or lesions on conifer roots (17%). Only 13% of A. ostoyae isolates were from rhizomorphs. By contrast Armillaria sinapina was isolated most commonly as rhizomorphs on roots (39%), or from the soil (21%). A further 27% of the isolates were from dead roots and 12% were isolated from small lesions ( ...
- Research Branch Project: E.P. 1121.01
http://www.for.gov.bc.ca/hre/projects/projects/1073.htm
Marking of plot boundaries and installation of additional signs is required to prevent accidental brushing of the research plots. During 1995 red alder in a portion of one plot (plot 7) at East Wilson Creek was cut by a brushing crew. In this plot approximately 50% of the cut trees resprouted during 1996. Dead trees were replaced with seedlings in November 1996. Fill planting has been done during the first 5 years to ensure that no major gaps exist in treatment plots. Experience to date indicates a need for good manual screening of planting spots for red alder, since survival is poor when seedlings are planted in undisturbed soil organic horizons (LFH). In addition, red alder seedlings are seriously damaged by any overtopping vegetation. Fifth year height growth of red alder was similar for the 3 sites planted in 1992 (East Wilson, Gough, and Waterloo). Year three height of red alder at Holt Creek is substantially smaller than that observed at the other sites. This difference results largely from ...
- Research Branch Project: E.P. 1148
http://www.for.gov.bc.ca/hre/projects/projects/1123.htm
E.P. 1148 - Long-term soil productivity study ...
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