Read An Introduction to Pollen Analysis

An Introduction to Pollen Analysis

G. Erdtman

4.9/5 (14325 ratings)

Description: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 ami 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 com pletely 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 hltle 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...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with An Introduction to Pollen Analysis. To get started finding An Introduction to Pollen Analysis, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

Pages: 248

Format: PDF, EPUB & Kindle Edition

Publisher: Morison Press

Release: 2013

ISBN: 1447494768

Description: 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 ami 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 com pletely 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 hltle 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...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with An Introduction to Pollen Analysis. To get started finding An Introduction to Pollen Analysis, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

Special Offer | $0.00

Special Offer! | $0.00

An Introduction to Pollen Analysis

An Introduction to Pollen Analysis

More Books

An Introduction to Pollen Analysis (New Series of Plant Science Books) by G. Erdtman (2007-03-15)

An Introduction to Pollen Analysis (New Series of Plant Science Books) by G. Erdtman (2007-03-15)

An Introduction To Pollen Analysis by G Erdtman (2015-08-08)

An Introduction To Pollen Analysis by G Erdtman (2015-08-08)

[An Introduction to Pollen Analysis (New Series of Plant Science Books)] [By: Erdtman, G.] [March, 2007]

[An Introduction to Pollen Analysis (New Series of Plant Science Books)] [By: Erdtman, G.] [March, 2007]

Pollen Morphology and Plant Taxonomy: Angiosperms (an Introduction to Palynology)

Pollen Morphology and Plant Taxonomy: Angiosperms (an Introduction to Palynology)

An Introduction to Pollen Analysis (New Series of Plant Science Books)

An Introduction to Pollen Analysis (New Series of Plant Science Books)

Handbook of Palynology, Morphology, Taxonomy Ecology

Handbook of Palynology, Morphology, Taxonomy Ecology

An introduction to a Scandinavian pollen flora,

An introduction to a Scandinavian pollen flora,

Pollen Morphology and Plant Taxonomy (Pollen Morphology and Plant Taxonomy, Volume I & II)

Pollen Morphology and Plant Taxonomy (Pollen Morphology and Plant Taxonomy, Volume I & II)

INTERNATIONAL GEOLOGICAL CONGRESS REPORT OF THE TWENTY-FIRST SESSION, NORDEN, 1960: PART VI - PROCEEDINGS OF SECTION 6: PRE-QUATERNARY MICROPALEONTOLOGY

INTERNATIONAL GEOLOGICAL CONGRESS REPORT OF THE TWENTY-FIRST SESSION, NORDEN, 1960: PART VI - PROCEEDINGS OF SECTION 6: PRE-QUATERNARY MICROPALEONTOLOGY