Author: Knut FÆGRI (and IVERSEN (Johannes))
Publisher:
ISBN:
Category :
Languages : en
Pages : 237
Book Description
Textbook of Modern Pollen Analysis. Textbook of Pollen Analysis. Second Revised Edition ... With a Chapter ... by H.T. Waterbolk. With Illustrations.
Author: Knut FÆGRI (and IVERSEN (Johannes))
Publisher:
ISBN:
Category :
Languages : en
Pages : 237
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 237
Book Description
Textbook of Pollen Analysis, by Knut Faegri [and] Johs. Iversen. With a Chapter on Pre-Quaternary Pollen Analysis by H.T. Waterbolk
Author: Knut Faegri
Publisher:
ISBN:
Category : Pollen
Languages : en
Pages : 237
Book Description
Publisher:
ISBN:
Category : Pollen
Languages : en
Pages : 237
Book Description
General Catalogue of Printed Books
Author: British Museum. Department of Printed Books
Publisher:
ISBN:
Category : English imprints
Languages : en
Pages : 1138
Book Description
Publisher:
ISBN:
Category : English imprints
Languages : en
Pages : 1138
Book Description
Text-book of Modern Pollen Analysis
Author: Knut Faegri
Publisher:
ISBN:
Category : Palynology
Languages : en
Pages : 180
Book Description
Taxonomie und Nomenklatur, Palynologie, Pollenanalyse.
Publisher:
ISBN:
Category : Palynology
Languages : en
Pages : 180
Book Description
Taxonomie und Nomenklatur, Palynologie, Pollenanalyse.
General Catalogue of Printed Books
Author: British Museum. Department of Printed Books
Publisher:
ISBN:
Category : Bibliography
Languages : en
Pages : 552
Book Description
Publisher:
ISBN:
Category : Bibliography
Languages : en
Pages : 552
Book Description
Textbook of Pollen Analysis
Author: Knut Faegri
Publisher:
ISBN:
Category : Paleobotany
Languages : en
Pages : 248
Book Description
Publisher:
ISBN:
Category : Paleobotany
Languages : en
Pages : 248
Book Description
Textbook of Pollen Analysis
Author: Knut Faegri
Publisher:
ISBN:
Category : Palynology
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category : Palynology
Languages : en
Pages : 0
Book Description
Textbook of Pollen Analysis
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An Introduction to Pollen Analysis
Author: G. Erdtman
Publisher: Read Books Ltd
ISBN: 1447494768
Category : Science
Languages : en
Pages : 424
Book Description
It has long been the custom among those making pollen surveys to expose microscope slides coated with a suitable adhesive and examine them for the pollen grains caught. The counts of the various species are tabulated each day and at the end of the season drawn into a graph or pollen spectrum, as it is called , which gives a clear picture of the relative amounts of the different kinds of pollen which are floating in the air from day to day throughout the growing season If done in the north temperate zone such a spectrum will show the pollen of the early flowering trees, at first a trickle, as the junipers, alders and hazels flower, then a deluge as the birches, oaks and pines and many other trees cast their pollen to the air. This is generally followed by a long stream of grass pollen, fluctuating from week to week as the various species come into flower, reach their zenith, then die out giving way to succeeding species And toward the end of the summer pollens of the late flowering weeds make their appearance, nowadays in most places completely dominated by that of the ragweed. If the record is repeated the following year the spectrum will be nearly the same The succession can be counted on to repeat itself with subtle change from year to year for many years to come, unless some cataclysm changes the surrounding vegetation which contributes to the pollen spectrum, for it is always a faithful representation of the surrounding vegetation.
Publisher: Read Books Ltd
ISBN: 1447494768
Category : Science
Languages : en
Pages : 424
Book Description
It has long been the custom among those making pollen surveys to expose microscope slides coated with a suitable adhesive and examine them for the pollen grains caught. The counts of the various species are tabulated each day and at the end of the season drawn into a graph or pollen spectrum, as it is called , which gives a clear picture of the relative amounts of the different kinds of pollen which are floating in the air from day to day throughout the growing season If done in the north temperate zone such a spectrum will show the pollen of the early flowering trees, at first a trickle, as the junipers, alders and hazels flower, then a deluge as the birches, oaks and pines and many other trees cast their pollen to the air. This is generally followed by a long stream of grass pollen, fluctuating from week to week as the various species come into flower, reach their zenith, then die out giving way to succeeding species And toward the end of the summer pollens of the late flowering weeds make their appearance, nowadays in most places completely dominated by that of the ragweed. If the record is repeated the following year the spectrum will be nearly the same The succession can be counted on to repeat itself with subtle change from year to year for many years to come, unless some cataclysm changes the surrounding vegetation which contributes to the pollen spectrum, for it is always a faithful representation of the surrounding vegetation.
Textbook of Pollen Analysis [by] Knut Faegri [and] Johs. Iversen. With a Chapter on Pre-Quaternary Pollen Analysis
Author: Knut Faegri
Publisher:
ISBN:
Category : Palynology
Languages : en
Pages : 236
Book Description
Publisher:
ISBN:
Category : Palynology
Languages : en
Pages : 236
Book Description