Sample plots were made in the Eberstadt forest near Darmstadt to study the growth conditions in Pine woods managed under the high-forest-with-standards system. The area affected by the shade of the crowns of the standards was equal to 7-8 times the area occupied by the crowns themselves in the case ...
Citation
Deutscher Forstv. Jahresb., 1937, 1937, pp 243-57
A text-book for the use of students in civil engineering at the Swedish Royal Technical College (division for land surveyors). The book is in two parts dealing with mensuration and economics respectively. The first part contains the following 7 chapters: - estimation of single trees. estimation of ...
Publisher
Lars Hokerbergs Bokforlag, Stockholm, Sweden
Citation
Skogsuppskattning och skogsekonomi., 1937, pp 277 + 3 pp.
The importance is stressed of keeping the top soil as loose as possible, particularly in seed-beds and young plantations. Spruce is much more sensitive to a soil cover of raw humus, weeds, &c., than are Larch and Pine. in clear-cut strips of under 30 metres in width the soil cover, including forest ...
Citation
Lesnicka Prace, 1938, 17, pp 273-90
Over 90 per cent. of the logged-off lands examined were found to have an unsatisfactory stocking. Reproduction was most successful relatively in areas of unburned slash where a surface burn had occurred prior to logging. Factors influencing regeneration are discussed, and stress is laid on the need ...
Citation
Forestry Chronicle, 1938, 14, pp 61-83
It is suggested that timber merchants should themselves select the trees suitable for pulpwood (10-35 cm. diameter) from those marked by the Service for selection fellings. The aim is to increase the production of pulpwood by reducing the exploitable diameter from 60 to 50 cm. wherever this is...
Citation
Revue des Eaux et Forets, 1938, 76, pp 493-504
The technique of barking, splitting, and storage, and the factors affecting the efficiency of barking are discussed in a particularly thorough study in labour economics. The percentage of loss through 'deep' barking (Weissschalen) is assessed at 7-8 per cent. Under average conditions and with...
Author(s)
Mayer Wegelin, H.; Marschalleck, B.; Gelinsky, H.; Junack, H.
Citation
Mitteilungen aus Forstwirtschaft und Forstwissenschaft, 1938, 1938, pp 121-138
The Californian Forest and Range Experiment Station has investigated methods of stump poisoning and soil sterilization with a view to discovering economic means of maintaining firebreaks free of vegetation. The experiments show that more than 85 per cent. success in stump poisoning may be attained...
Author(s)
Ikenberry, G. J.; Bruce, H. D.; Curry, J. R.
Citation
Journal of Forestry, 1938, 36, pp 507-15
The theory of highest rate of interest on soil capital value is criticized as tending to decrease forest revenue. It is said to ignore the capital value of the growing stock and to be of no use in practical forest valuation.
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Citation
Zentralblatt fur das gesamte Forstwesen, 1938, 64, pp 173-81
Co-operation under legal compulsion is the principal measure advocated with a view to introducing rational management in the private forests of Bulgaria. These cover roughly 508, 000 hectares or about 20 per cent. of the total forest area, and consist mainly of small peasant forest holdings....
Citation
Lesowodska Missal, 1938, 7, pp 1-18
Even the most experienced forester would admit that he cannot always see the wood for the trees, the trees for the wood, or either for the demands imposed upon him by the interests of industry and the community at large. The list of things that affect forests and forestry is extensive, and there is ...
Author(s)
Thomson, T.; Jerram, M. R. K.
Publisher
Thomas Murby & Co., London, UK
Citation
An outline of forestry., 1938, pp 208 pp.