Effects of Air Pollution:
Ozone, Acid Rain, and Excess
Emmett, B.A. 2007. Nitrogen saturation of terrestrial
ecosystems: some recent findings and their implictions for
our conceptual framework.
Water, Air and Soil Pollution: Focus 7:99-10
LECTURES 11 and 12
A. INTRODUCTION TO MYCORRHIZAS
Coleman et al. (text) Chapter 2
Articles by Steve Trudell (class web site)
The belowground ecosystem where are the mycorrhizas?
Mycorrhizal fungi are associated with fine roots
Restoration to Soil Ecology
Definition: The return of an ecosystem to a
self-sustaining entity in which natural
ecological processes ope
MICROBIAL ECOLOGY AND
MICROBIAL ECOLOGY THEORIES
A. Environmental Influences on Soil Organisms
B. Concepts and theories in microbial ecology
Coleman et al. Text -Chapters 6 and 7
Ohtonen et al. 1997
Zak et al. 1994
Prosser et al. 2007
Clearcutting effects on Soil Ecology
Prescott, C.E., L.L. Blevins, and C.L. Staley. 2000. Effects of clear-cutting on
decomposition rates of litter and forest floor in forests of British Columbia.
Can. J. For. Res. 30: 1751-1757.
How long do cl
Climate change influence on
decomposition and soil microbes
Pendall, Elise, Lindsey Rustad, Josh Schimel. 2008. Towards a predictive
understanding of belowground process responses to climate change: have we
moved any closer? Functional
SOIL MICROBES AND THE NITROGEN CYCLE
1. General nitrogen cycle
2. Nitrogen mineralization and immobilization
3. Nitrogen fixation
Decomp of Organic N producing Inorgan
LECTURE 2 - AN OVERVIEW OF SOIL ORGANISMS
Reading: Coleman et al. Chapters 3 and 4
What organisms live on or in the soil?
1. Vascular plant roots
2. Algae, lichens
3. Microbes - Archae, Bacteria ( including actinomycetes),
soil health & bioindicators
the minimization of the number and activity of
soilborne plant disease organisms and
soilborne insect pests.
Soil health is the cap
Decomposition studies in
the Pacific Northwest
Reading: Edmonds (1991); Prescott (2005)
Why study forest litter decomposition in the Pacific Northwest?
In the 1970s not much known about decomposition rates of
different susbtrates, c
Text: Chapters 2 and 3
http:/botit.botany.wisc.edu/toms_fungi - Tom Volk, U of Wisc.
http:/www.fungi.com - Fungi Perfecti company _ Paul Stamets