For additional digital leasing and purchase options contact a media consultant at 800-257-5126 (press option 3) or firstname.lastname@example.org.
Energy flow and nutrient recycling are two important areas of ecological investigation. The purpose of these experiments is to assess the growth rate and net primary production of heather, Calluna vulgaris L., as a basis for estimating energy flow and nutrient uptake. The experiments take various measurements of specimens from different locations (though within the same area), at different phases of the plant's life cycle and subject to such differences as grazing and rotational burning. The measurements demonstrate the relationship between mean standing-crop biomass and age, the average annual increment in above ground standing-crop biomass, the effect of the formation of a closed canopy on the production of green material, and the efficiency of energy fixation by heather during the growing season. (15 minutes)
Length: 15 minutes
Copyright date: ©1990
Prices include public performance rights.
Not available to Home Video customers.
Only available in USA and Canada.
Classifying and Grouping Plants
Science of Propagation
Deadly Bite—Wildest Survival
The World of Plants
Sex & Lies (Part 2)
What Plants Can You find Outside?
The Botany Series
Introduction to Botany: Part 2—The ...
Plant Reproduction—The Botany Serie...
132 West 31st Street, 16th Floor
New York, NY 10001
P: 800.322.8755 F: 800.678.3633
Sign Up for Special Offers!
© Films Media Group. All rights reserved.