Zobrazeno 1 - 10
of 15
pro vyhledávání: '"J. D. Gagnon"'
Publikováno v:
Journal of Vegetation Science. 4:783-790
To assess the effects of site type, forest initiation periods and fire regimes on the dynamics of Pinus banksiana (Jack pine), the age structure of 69 populations of the species was analyzed. Two landscapes with different fire regimes were selected i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3569e58a837107c329bb98e792022ecc
https://doi.org/10.2307/3235615
https://doi.org/10.2307/3235615
Publikováno v:
The Forestry Chronicle. 52:26-29
The profitability of an aerial fertilization, in the Grand'Mère white spruce plantations, is considered in the light of results from a 10-year manual fertilization trial (1962-1972). In the fall of 1972, the additional wood volume associated with th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43d072849d8f6c1b98dc1db211ca4e62
https://doi.org/10.5558/tfc52026-1
https://doi.org/10.5558/tfc52026-1
Autor:
J. D. Gagnon, M. R. Roberge
Publikováno v:
Canadian Journal of Forest Research. 4:482-490
In September 1973, an aerial spraying of 336 kg/ha of urea was made over an area of 34 ha covered by firs 20–70 years old. Within the 35 permanent sample plots each comprising 0.04 ha and established at random on equidistant lines every 100 m, open
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::280e6f72b42dd3424e2021436955c4c3
https://doi.org/10.1139/x74-071
https://doi.org/10.1139/x74-071
Publikováno v:
The Forestry Chronicle. 52:53-56
A study was carried out in the Grand'Mère plantations on the 10-year growth response from a fertilization trial with various levels of nitrogen and potassium. There was a growth response to potassium at the end of the experiment, while the effect of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::462ec70e1d1a43d65d2c9f28930a8cf0
https://doi.org/10.5558/tfc52053-2
https://doi.org/10.5558/tfc52053-2
Autor:
K. Hunt, J. D. Gagnon
Publikováno v:
Canadian Journal of Forest Research. 5:399-402
Samples of five pairs of fertilized and non-fertilized 60-year-old natural balsam fir (Abiesbalsamea (L.) Mill.) growing in the Quebec boreal forest region were pulped by the kraft process and the specific gravity was measured. Analyses carried out 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abd24f180629e41c43b13fc223fc59e5
https://doi.org/10.1139/x75-054
https://doi.org/10.1139/x75-054
Autor:
Par J. D. Gagnon
Publikováno v:
The Forestry Chronicle. 46:206-209
About nine square miles of the Proulx Block white spruce plantations at Grand-Mère were inventoried in 1946, 1956, 1961 and 1966. Results of these inventories show that on about 20% of the studied area characterized by the Calliergon forest type, gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e025a2bf1fc34e0c5fb7b4e517ebad83
https://doi.org/10.5558/tfc46206-3
https://doi.org/10.5558/tfc46206-3
Autor:
J. D. Gagnon
Publikováno v:
The Forestry Chronicle. 41:290-294
The fertilizers, Mg at a rate of 100 lbs/acre and K at 200 lbs/acre, were applied around each of 15 red pine (Pinus resinosa Ait.) to promote increased growth in a 20-year-old plantation which had failed to fulfil growth expectations. Successive meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3e86456b92a3d79fb2276f01839fa7b
https://doi.org/10.5558/tfc41290-3
https://doi.org/10.5558/tfc41290-3
Autor:
J. D. Gagnon
Publikováno v:
Plant and Soil. 30:23-33
Scarification of a cleared Cladonia-Polytrichum site type on a deteriorated sandy area resulted, after 3 years, in a marked increase in height of white spruce (Picea glauca (Moench) Voss) transplants. This increase was presumably due to the incorpora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91fdcb671daadbc343186ed5d19fde89
https://doi.org/10.1007/bf01885257
https://doi.org/10.1007/bf01885257
Autor:
J. D. Gagnon
Publikováno v:
The Forestry Chronicle. 40:169-174
The concentration of nitrogen in current year lateral needles of 122 mature dominant and codominant black spruce trees (Picea mariana Mill.) growing on different site qualities has been studied. Analyses carried out on needles collected at the end of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4828c8d7fd544799f9f5dd4c31348e0b
https://doi.org/10.5558/tfc40169-2
https://doi.org/10.5558/tfc40169-2
Autor:
J. D. Gagnon
Publikováno v:
Plant and Soil. 23:49-59
Visual symptoms of malnutrition associated with the unsatisfactory development of natural and planted black spruce seedlings in a 20-year-old burn suggested low supply and uptake of nitrogen, phosphorus, and possibly other nutrients as the primarily
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9909c3043124db8d0bc3e56afce7e52
https://doi.org/10.1007/bf01349118
https://doi.org/10.1007/bf01349118