Vegetation Dynamics by R. Knapp (auth.), R. Knapp (eds.)

By R. Knapp (auth.), R. Knapp (eds.)

During the overseas Botanical Congress in Edinburgh, 1964, Mrs. 1. M. WEISBACH-J UNK of The Hague mentioned a plan for instruction via her publishing corporation (Dr. W. Junk b.v.) of a world instruction manual of plants technological know-how. She proposed a chain that are supposed to supply a complete survey of the various instructions inside this technology, and their achievements up to now in addition to their targets for the longer term. The problem of such an company, and its obvious price for the additional improvement of crops examine, brought on the undersigned after a few attention to simply accept the provide of the honorable but additionally burdensome activity of common Editor. the choice was once inspired by way of a good formulated and targeted define for the instruction manual labored out by means of the Dutch phytosociolo­ gists J. J. BARKMAN and V. WESTHOFF. A circle of students from quite a few international locations was once invited via the Dr. Junk Publishing Com­ pany to The Hague in January 1966 to attract up a listing of editors and members for the components of the guide. the description and checklist have served when you consider that for the association of the guide, without having for significant switch. the several burdens of editors and authors have pressured rather varied timings for of entirety of the person sections.

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By R. Knapp (auth.), R. Knapp (eds.)

During the overseas Botanical Congress in Edinburgh, 1964, Mrs. 1. M. WEISBACH-J UNK of The Hague mentioned a plan for instruction via her publishing corporation (Dr. W. Junk b.v.) of a world instruction manual of plants technological know-how. She proposed a chain that are supposed to supply a complete survey of the various instructions inside this technology, and their achievements up to now in addition to their targets for the longer term. The problem of such an company, and its obvious price for the additional improvement of crops examine, brought on the undersigned after a few attention to simply accept the provide of the honorable but additionally burdensome activity of common Editor. the choice was once inspired by way of a good formulated and targeted define for the instruction manual labored out by means of the Dutch phytosociolo­ gists J. J. BARKMAN and V. WESTHOFF. A circle of students from quite a few international locations was once invited via the Dr. Junk Publishing Com­ pany to The Hague in January 1966 to attract up a listing of editors and members for the components of the guide. the description and checklist have served when you consider that for the association of the guide, without having for significant switch. the several burdens of editors and authors have pressured rather varied timings for of entirety of the person sections.

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Vegetation Dynamics

Throughout the foreign Botanical Congress in Edinburgh, 1964, Mrs. 1. M. WEISBACH-J UNK of The Hague mentioned a plan for practise by way of her publishing corporation (Dr. W. Junk b. v. ) of a global guide of plants technological know-how. She proposed a chain that are meant to provide a complete survey of the various instructions inside this technological know-how, and their achievements up to now in addition to their targets for the longer term.

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By means of pollen analysis, some secular successions could be well confirmed. In marsh and bog vegetation in a number of cases, replacement of basiphilous vegetation by acidophilous plant communities has been found in studies applying these methods. Some cases of secular successions from eutrophic forest associations to dystrophic acidophilous woody vegetation by influences of humid oceanic climate seem to be well proved in the same way. Since plant communities and certain macro-morphological characters of soil profiles are coinciding, it is possible to recognize the local vegetation living at the time of the formation of a fossile soil profile.

ERDTMAN 1921, BERTSCH 1933, 1935, HESMER 1933, PFAFFENBERG u. HASSENKAMP 1934, POHL 1937, REMPE 1937, MOTHES et al. ). Bei Godthaab in West-Gron1and verglich IVERSEN (1947) den Pollen-Niedersch1ag in rezenter Gyttja mit der prozentualen ArtenBetei1igung in der heutigen Pflanzendecke. T. erheblich. B. JANSSEN 1967b, 1970, ANDERSEN 1970 und VAN ZEIST 1970) erorterten unter kritischer Beriicksichtigung alterer Versuthe einen Korrektur-Faktor (R-Wert), mit dem die gefundenen Pollen-Mengen multip1iziert die wahren Nlengen-Antei1e der Pollenspender an der Pflanzendecke wiedergeben sollen.

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