(boreas) Boreas Te-8 Aspen Bark Chemistry Data
(boreas) Boreas Te-8 Aspen Bark Chemistry Data

Author: National Aeronautics and Space Administration (NASA)

Publisher: Createspace Independent Publishing Platform

Published: 2018-06-16

Total Pages: 36

ISBN-13: 9781721240937

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The BOREAS TE-8 team collected pigment density data from aspen bark and leaves from four sites within the BOREAS SSA from 24-May-1994 to 16-Jun-1994 (IFC-1), 19-Jul-1994 to 08-Aug- 1994 (IFC-2), and 30-Aug-1994 to 19-Sep-1994 (IFC-3). One to nine trees from each site were sampled during the three IFCs. Each tree was sampled in five different locations for bark pigment properties: basal stem section, which was any bark sample taken below one-half the tree height; upper stem section, which was any bark sample taken from the main stem above one-half the tree height; bark taken from branches up to 3 years old; a 2-year-old branch segment, and a 1-year-old branch segment. Additionally, a limited number of leaves were collected. Bark samples were removed from the stem of the tree, placed in ziplock bags, and transported to UNH, where they were processed and analyzed by a spectrophotometer. In each data file, samples are identified by Site, Date, Tree#, and Sample Location (see I st paragraph above. Pigment density values are normalized to mg/m2. Density values for the following pigments are provided: Chi a, Chi b, Total Chi (Chi a+b), Carotenoids, Chi a to b ratio, and the Total Chi to carotenoids ratio. The data are stored in ASCII files. The data files are available on a CD-ROM (see document number 20010000884), or from the Oak Ridge National Laboratory (ORNL) Distrobuted Activity Archive Center (DAAC). Hall, Forrest G. (Editor) and Papagno, Andrea (Editor) and Spencer, Shannon L. and Rock, Barrett N. Goddard Space Flight Center NASA/TM-2000-209891/VOL151, Rept-2000-03136-0/VOL151, NAS 1.15:209891/VOL151

Poplars and Willows
Poplars and Willows

Author: Jud G. Isebrands

Publisher: CABI

Published: 2014-02-12

Total Pages: 700

ISBN-13: 1780641087

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Poplars and willows form an important component of forestry and agricultural systems, providing a wide range of wood and non-wood products. This book synthesizes research on poplars and willows, providing a practical worldwide overview and guide to their basic characteristics, cultivation and use, issues, problems and trends. Prominence is given to environmental benefits and the importance of poplar and willow cultivation in meeting the needs of people and communities, sustainable livelihoods, land use and development.

Fundamentals of Tree Ring Research
Fundamentals of Tree Ring Research

Author: James H. Speer

Publisher: University of Arizona Press

Published: 2010

Total Pages: 360

ISBN-13: 0816526850

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This comprehensive text addresses all of the subjects that a reader who is new to the field will need to know and will be a welcome reference for practitioners at all levels. It includes a history of the discipline, biological and ecological background, principles of the field, basic scientific information on the structure and growth of trees, the complete range of dendrochronology methods, and a full description of each of the relevant subdisciplines.

Conservation by Proxy
Conservation by Proxy

Author: Tim Caro

Publisher: Island Press

Published: 2010-06-23

Total Pages: 394

ISBN-13: 159726959X

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The vast scope of conservation problems has forced biologists and managers to rely on "surrogate" species to serve as shortcuts to guide their decision making. These species-known by a host of different terms, including indicator, umbrella, and flagship species-act as proxies to represent larger conservation issues, such as the location of biodiversity hotspots or general ecosystem health. Synthesizing an immense body of literature, conservation biologist and field researcher Tim Caro offers systematic definitions of surrogate species concepts, explores biological theories that underlie them, considers how surrogate species are chosen, critically examines evidence for and against their utility, and makes recommendations for their continued use. The book clarifies terminology and contrasts how different terms are used in the real world considers the ecological, taxonomic, and political underpinnings of these shortcuts identifies criteria that make for good surrogate species outlines the circumstances where the application of the surrogate species concept shows promise Conservation by Proxy is a benchmark reference that provides clear definitions and common understanding of the evidence and theory behind surrogate species. It is the first book to review and bring together literature on more than fifteen types of surrogate species, enabling us to assess their role in conservation and offering guidelines on how they can be used most effectively.

The Iceman and his Natural Environment
The Iceman and his Natural Environment

Author: Sigmar Bortenschlager

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 196

ISBN-13: 3709167582

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Before the discovery of the "Man in the Ice" in temporal context. On the other hand the reconstruc tion of the Iceman's life-style as derived from data September 1991, little was known about the Neolithic obtained from the site has to be correlated with inde period in the Central Alps. Suddenly and without precedent, here was the very well preserved corpse of pendent data sets. For that purpose pollen analysis was a man who had lived more than 5,000 years ago with his performed on peat-bogs in the vicinity of the find and clothing and equipment almost intact. The discovery further afield to obtain precise data on the vegetation was not just deservedly a world-wide sensation but a cover and climate in the Neolithic. Pollen analysis was unique opportunity for the scientific community to in performed for a vertical transect extending from the vestigate the life and death of a human from such very timber line almost up to the nival zone. The results of ancient times. It opened up wholly new horizons in the analyses reveal changes to the vegetation patterns prehistoric research, and with the help of a full range caused by pastoral farming long before the time of the of modern research techniques an attempt was made Iceman.

The Youth Guide to Forests
The Youth Guide to Forests

Author: Food and Agriculture Organization of the United Nations

Publisher: Food & Agriculture Org.

Published: 2018-06-06

Total Pages: 240

ISBN-13: 9251084351

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This fact-filled guide explores forests from the equator to the frozen poles, the depths of the rainforest to the mountain forests at high altitudes. It also demonstrates the many benefits that forests provide us with, discusses the negative impacts that humans unfortunately have on forests and explains how good management can help protect and conserve forests and forest biodiversity. At the end of the guide, inspiring examples of youth-led initiatives and an easy-to-follow action plan will help young people develop their own forest conservation activities and projects.