'Growth rings' presentation slideshows

Dendro chrono logy

Dendro chrono logy. 4. 3. 2. 1. Radial Growth. White Oak Tree Rings. 1970. 1972. 1971. 1973. Growth Rings. Periodical activity of vascular cambium Represent one year of growth. 1970. 1971. 1972. Growth rings: Early wood and late wood. E. Tree rings; Annual rings

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Tree

Tree. A tree is a perennial woody plant. Definition. A minimum height specification at maturity is cited by some authors, varying from 3 m to 6 m; some authors set a minimum of 10 cm trunk diameter.

435 views • 23 slides

Dissection of the Clam

Dissection of the Clam. Venus mercenaria. Modified from : http://www.biologyjunction.com. Bivalve Mollusks. Soft bodies invertebrates Have a muscular foot that can be extended for movement Two part, hinged shell Complete, one-way digestive tract with a mouth & anus Separate sexes.

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Angiosperms VI

400 views • 18 slides

535 views • 17 slides

DENDROCHRONOLOGY

DENDROCHRONOLOGY. What is dendrochronology?. Dendrochronology : ology : the study of chronos : time, or more specifically events in past time dendros : using trees, or more specifically the growth rings of trees. What is dendrochronology?. Tree-rings: Each ring is a year of growth

779 views • 12 slides

My Life as a Tree

My Life as a Tree. By: Melanie Davis and Chelsea Watts Science Mini-Lesson SCE 3310. TREES. -Woody plant that can grow from a few inches to thousands of feet tall. .

238 views • 6 slides

Aloe dichotoma

Aloe dichotoma. Tree Ring Dating. What are growth rings? How are they obtained? How are they counted?. Cross Dating. What happens if rings are missing? Why does this happen? How is this problem overcome?. X-Rays. What happens if there is a complete lack of visible rings?

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2010 White pine ( pinus strobus ) needle cast event

2010 White pine ( pinus strobus ) needle cast event Brendan Fagan, Forestry, Natural Resources, bji78@wildcats.unh.edu. Fig. 2 Reflectance data for first-year needles. Introduction

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Does the growth rate of postlarval gag grouper vary with local weather and diet?

Does the growth rate of postlarval gag grouper vary with local weather and diet? S. Bourgoin*, D. Thistle*, C. Koenig*, and S. Harter # *Florida State University, # NOAA Fisheries. 1. Context Gag are commercially important. Gag are threatened by over fishing. Stations

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Prevent Your Wood from Cracking and Splitting with Log Cabin Wood Sealer

Cracking and splitting naturally occur to wood when it is constantly exposed to different weather conditions. The phenomenon is also known as u2018checksu2019, and it happens when the wood dries and shrinks in the process. Shrinking can occur around twice as much around the growth rings compared to the amount across the rings, and the unevenness causes cracks and splits to develop. It can be difficult to tell where checks will appear on your log cabin, but you can prevent them when the wood is properly sealed. Just be sure to look for a specially formulated log cabin wood sealer that is EPA-registered and designed to control the growth and presence of decay-controlling organisms such as termites, powder post beetles, and mold.

22 views • 1 slides