experiment in intensive cultivation of an upland heath

Results at 30 years are reported for a cultivation experiment on an upland heath with a podzolic ironpan soil with indurated subsoil. The main species tested were Scots pine and Japanese larch and lodgepole pine, the latter two species in mixture. Cultivation included two spaced furrow ploughing tre...

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Bibliographic Details
Published in:Forestry (London) 1984, Vol.57 (2), p.117-141
Main Authors: Wilson, K, Pyatt, D.G
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Cropping systems. Cultivation. Soil tillage
Forestry
forests
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
growth
growth analysis
heath podzols
heathlands
height
iron pans
Larix kaempferi
mortality
Picea abies
Picea sitchensis
Pinus contorta
Pinus sylvestris
plowing
podzolic soils
Pseudotsuga menziesii
Soil tillage. Irrigation. Drainage
tillage
Tillage. Tending. Growth control
Tsuga heterophylla
upland soils
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Summary:Results at 30 years are reported for a cultivation experiment on an upland heath with a podzolic ironpan soil with indurated subsoil. The main species tested were Scots pine and Japanese larch and lodgepole pine, the latter two species in mixture. Cultivation included two spaced furrow ploughing treatments, two shallow complete and two deep complete ploughing treatments. For the first 8 or 10 years height growth was rapid in all treatments, with the deep complete ploughing giving greatest response. In the next 10 years height growth was much slower and the order of the treatments was temporarily reversed. At 30 years height differences between treatments are small but differences in volume production between the best and the poorest treatment are about 20 per cent. In the unplanted heathland the soil above the ironpan is frequently waterlogged and has small concentrations of oxygen; under the forest waterlogging does not occur and the soil is now well areated.
ISSN:0015-752X
1464-3626
DOI:10.1093/forestry/57.2.117