Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Records 1 - 18 / 18

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    Landschapsbedrijven als middel tot opheffing van onontwikkelde streken in Nederlandsch-Indie
    Dijk, L.J. van - \ 1942
    Wageningen University. Promotor(en): A. te Wechel. - Wageningen : Zomer & Keunings - 201
    landbouw - economische situatie - bosbouw - bosbeheer - bosbedrijfsvoering - ondernemingen - harsen - terpentijn - bomen - plattelandsplanning - plattelandsontwikkeling - sociale economie - papoea-nieuw-guinea - economische productie - economische planning - nederlands indië - agriculture - economic situation - forestry - forest administration - forest management - enterprises - resins - turpentine - trees - rural planning - rural development - socioeconomics - papua new guinea - economic production - economic planning - netherlands east indies
    The study was of the island of Japen north of Western New Guinea, a wild and undeveloped part of the East Indies.
    The island had vast forests; in the past some attempts to develop forestry and agriculture failed.

    The author suggested exploitation of forest by-product copal, obtained by tapping Agathis, a coniferous tree. The natives were already familiar with the tapping of this tree in a very primitive way but organisation had failed. The author suggested growing artificial plantations of Agathis. Transport costs for the Agathis timber seemed too high.

    Government supervision, organisation and financial support were needed.
    De Landbouwhoogeschool
    Minderhoud, G. ; Sprenger, A.M. ; Stok, J.E. van der; Wechel, A. te - \ 1941
    Wageningen : Veenman - 40
    hogere agrarische scholen - universiteiten - nederland - veluwe - gelderland - agricultural colleges - universities - netherlands - veluwe - gelderland
    Hoema's, hoemablokken en boschreserves in de residentie Bantam
    Kools, J.F. - \ 1935
    Wageningen University. Promotor(en): A. te Wechel. - Wageningen : Veenman - 187
    bosbouw - zwerflandbouw - java - nederlands indië - forestry - shifting cultivation - java - netherlands east indies
    The conflict whether certain districts of indigenous forest should be assigned to agriculture or forestry, had been more heated in Bantam than in all the outlying provinces of the Netherlands East Indies. At the beginning of this century an abortive attempt was made to eliminate shifting (ladang or hoema) cultivation. To evaluate the advantages and disadvantages of the hoema system with special reference to forest reservation, the author studied the hoema cultivation as an agricultural system, its consequences for local people and for other land use, crop yields, the traditional (adat) law and the legal hoema regulations in Bantam. Kools arrived at the conclusion that the aims in the hoema region should be: 1. Establishment of field crops between young forest tree seedlings (Taungya system) to provide immediate relief; 2. research into intensification of the hoema cultivation; 3. rigorous checks against illegal reclamation.

    Hoema cultivation must be considered as a primitive extensive agricultural system, which did not need to exhaust the soil, but usually did. It was recommended that shifting cultivation be restricted to particular forest blocks, also in the rest of Java and in Madoera.

    Houtverlies tengevolge van het schillen van iepenhout op de opslagplaatsen
    Wechel, A. te - \ 1934
    Nederlands Bosbouwtijdschrift 7 (1934)3. - ISSN 0028-2057 - p. 64 - 72.
    bosbouw - bosbeheer - forestry - forest administration
    De economische beteekenis van het bosch voor Nederland
    Sprangers, A.A.C. - \ 1933
    Wageningen University. Promotor(en): A. te Wechel. - Arnhem : Nederlandsche Heidemaatschappij - 303
    bosbouw - bossen - economische impact - nederland - forestry - forests - economic impact - netherlands
    The history of forests in the Netherlands was described. In more recent times Dutch forests supplied a modest but interesting portion of Dutch timber. They supplied all agricultural timber, stakes and poles for horticultural and agricultural crops, almost all firewood, a third of the pit props and most of the wood for protecting stream banks. Poles had many uses. The wood of the Canadian poplars satisfied the whole need for clog making and for matches, and there was a surplus for export. Secondary uses were important: tannins, bilberries, tree seeds and hunting rents.

    The forests also attracted tourists and were thus of aesthetic and economic value.

    Despite the replacement of forest by agriculture the forest area was being increased by the afforestation of waste lands. The reclamation of waste lands principally for afforestation needed active promotion, although cost had to be considered. Management had to be based on production. Grading and volume measurement of felled timber, culture of Canadian poplar, and the sale of different timbers needed more attention.

    De stichting van een boschbedrijf in Andalusie : een bedrijfsanalyse
    Burgers, P.H. - \ 1931
    Wageningen University. Promotor(en): A. te Wechel. - Den Haag : Zuid-Holl. Boek- en Handelsdrukkerij - 166
    bosbouw - bosbedrijfsvoering - bosbouweconomie - spanje - forestry - forest management - forest economics - spain
    The author described his search for the most profitable way of bringing into culture 5000 ha in Andalusia, west-south-west of Seville, on an extensive sand plateau probably of diluvial origin. By appraisal of the trees and crops already thriving in Andalusia, he settled for Eucalyptus globulus, taking into account that there would be a ready demand for young heart-free wood for the paper industry.
    The most profitable exploitation was as coppice on a rotation of 8-10 years. There was also possible scope as timber for Spain and other countries. The manufacture of wood waste to charcoal also needed study. Other possible outlets were as tar products and leaf oil.

    E. globulus could also be grown profitably and without risks in other regions of Spain, in other Mediterranean countries and in other continents where there was sufficient water and a rather loose soil and there was sufficient cheap labour.
    Kapitaal en arbeid in het boschbedrijf
    Wechel, A. te - \ 1929
    Nederlands Bosbouwtijdschrift 2 (1929)3. - ISSN 0028-2057 - p. 75 - 85.
    bosbouw - bosbeheer - forestry - forest administration
    Wechel, A. te - \ 1929
    Nederlands Bosbouwtijdschrift 2 (1929)1. - ISSN 0028-2057 - p. 14 - 17.
    bosbouw - bosbeheer - forestry - forest administration
    Wechel, A. te - \ 1928
    Nederlands Bosbouwtijdschrift 1 (1928)2. - ISSN 0028-2057 - p. 18 - 21.
    bosbouw - bosbeheer - forestry - forest administration
    Cijfers die te denken geven
    Wechel, A. te - \ 1928
    Nederlands Bosbouwtijdschrift 1 (1928)5. - ISSN 0028-2057 - p. 57 - 61.
    bosbouw - bosbeheer - forestry - forest administration
    Wechel, A. te - \ 1928
    Nederlands Bosbouwtijdschrift 1 (1928)12. - ISSN 0028-2057 - p. 165 - 171.
    bosbouw - bosbeheer - forestry - forest administration
    Het studiejaar 1926-1927
    Wechel, A. te - \ 1927
    Wageningen : LH - 14
    Opbrengstvermeerdering in den boschbouw
    Wechel, A. te - \ 1927
    Wageningen : Veenman - 21
    velling - bosbedrijfsvoering - colleges (hoorcolleges) - opbrengstregeling - opbrengsten - felling - forest management - lectures - yield regulation - yields
    De micrografische identificatie van hout
    Beversluis, J.R. - \ 1925
    Wageningen University. Promotor(en): A. te Wechel. - S.l. : S.n. - 132
    bosbouw - hout - schors, bomen - houteigenschappen - meting - experimenten - statistiek - simulatie - forestry - wood - bark - wood properties - measurement - experiments - statistics - simulation
    The timber of dicotyledonous trees could not be classified on microscopic features in harmony with taxonomic practice because botanical systems were still faulty and not generally recognized, and because microscopic descriptions of timber were not uniform enough for compilation. To find whether timber features could be conformed with a botanic taxonomy, a scheme was drafted for the description of secondary wood of dicotyledonous trees based on definite, uniform and comparable characteristics.

    On this basis short descriptions were compiled of the timber of 93 species and a table was composed of species identical in microscopic structure. The 24 most important characteristics of the 42 families represented were described. Families and species were indexed.

    Onderzoek naar de vooruitzichten van de houtverkolingsindustrie in Nederlandsch-Indie
    Wind Hzn, R. - \ 1925
    Landbouwhogeschool Wageningen. Promotor(en): A. te Wechel. - Wageningen : Veenman - 211
    bosbouw - houtskool - eigenschappen - nederlands indië - forestry - charcoal - properties - netherlands east indies
    Despite the increase in substitutes for wood the world consumption of wood had increased. The principal timber-producing countries could not raise their production so that tropical forests would have to supply more of the world's timber. Tropical exploitation of timber however involved many difficulties and the supply may be more suitable for pulping or processing into wood cellulose, acetic acid, methanol, tar and charcoal.

    The charcoal industry in the Netherlands East Indies would be most successful if there was a ready market for the charcoal, as for tin-smelting or blast furnaces. The sale of other products such as acetic acid for coagulation of latex could help to promote the industry. Decline of the United States charcoal industry by competition with synthetic methanol might improve the market in countries where methanol was not a principal product. In the Netherlands East Indies the sale of acetic acid, wood tar and charcoal seemed secure for the charcoal industry and perhaps there was scope for export.

    Het looistofvraagstuk in Nederlandsch-Indie
    Wind, R. - \ 1924
    Wageningen University. Promotor(en): A. te Wechel. - Leipzig : Metzger & Wittig - 301
    looizuurleverende planten - bosbouw - schors, bomen - tanninen - leerverwerkende industrie - tanstuffs - bosproducten anders dan hout - nederlands indië - tan plants - forestry - bark - tannins - leather industry - tanstuffs - non-wood forest products - netherlands east indies
    To improve the East Indian leather industry a search was made for tan barks and other tanning products, and their suitability and productivity per ha were assessed. At first (1917-1924) the study concentrated on tanning products already locally used, including those from mangrove forest, but considered also some promising local and exotic (some well known) products. For all species considered botanical data, geographic distribution and, where possible, information on bark production and quality, and on culture of the trees were discussed.

    Other topics were trade in leather and tanning substances in the Netherlands East Indies, trade in mangrove bark and catch and tanned hides in the Malayan Straits Settlements, leather dressing and working in the Netherlands East Indies, research on tanning substances, experiments on practical tanning and on methods of collecting bark. Finally followed the main conclusions for supply of tanning substances for the home industry. An appendix included a key to the tree species of mangrove forest.

    Over het krimpen van geschilde en ongeschilde stammen na de velling
    Wechel, A. te - \ 1923
    Wageningen : Veenman (Mededeelingen van de Landbouwhoogeschool dl. 27, no. 1)
    bijlen - ontschorsen - velling - bosbouw - handzagen - primaire bewerking - krimp - opzwellen - hout - houteigenschappen - axes - barking - felling - forestry - hand saws - primary conversion - shrinkage - swelling - wood - wood properties
    De beteekenis van het bosch in onze Oost-Indische koloniën : openbare voordracht gehouden ter opening van de lessen in de boschhuishoudkunde aand de Rijks Hoogere Land-, Tuin-, en Boschbouwschool te Wageningen den 8sten October 1915
    Wechel, A. te - \ 1916
    Wageningen : Veenman (Mededeelingen van de Rijks Hoogere Land-, Tuin- en Boschbouwschool en van de daaraan verbonden instituten dl. 9, [verh. 2])
    bosproducten - bosbouw - bossen - indonesië - nederlands indië - forest products - forestry - forests - indonesia - netherlands east indies
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