An Introduction To Pollen Analysis
(eBook)

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Published
Read Books Ltd., 2013.
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Available Online

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Format
eBook
Language
English
ISBN
9781447494768

Citations

APA Citation, 7th Edition (style guide)

G. Erdtman., & G. Erdtman|AUTHOR. (2013). An Introduction To Pollen Analysis . Read Books Ltd..

Chicago / Turabian - Author Date Citation, 17th Edition (style guide)

G. Erdtman and G. Erdtman|AUTHOR. 2013. An Introduction To Pollen Analysis. Read Books Ltd.

Chicago / Turabian - Humanities (Notes and Bibliography) Citation, 17th Edition (style guide)

G. Erdtman and G. Erdtman|AUTHOR. An Introduction To Pollen Analysis Read Books Ltd, 2013.

MLA Citation, 9th Edition (style guide)

G. Erdtman, and G. Erdtman|AUTHOR. An Introduction To Pollen Analysis Read Books Ltd., 2013.

Note! Citations contain only title, author, edition, publisher, and year published. Citations should be used as a guideline and should be double checked for accuracy. Citation formats are based on standards as of August 2021.

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Grouped Work ID95131b5c-8301-9e4c-7c4c-ca004f9aa85f
Full titleintroduction to pollen analysis
Authorerdtman g
Grouping Categorybook
Last Update2021-09-16 18:55:42PM
Last Indexed2022-05-14 03:28:54AM

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First LoadedJul 14, 2021
Last UsedJan 12, 2022

Hoopla Extract Information

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    [synopsis] => AN INTRODUCTION TO POLLEN ANALYSIS by G. ERDTMAN. FOREWORD: 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 little 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...
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