-
What is Hazardus waste talk about it
-
-
Superfund (CERCLA)-what is it and how is it funded?
-
Hazardous waist disposal alternatives
-
Garbage and landfill space problems-what can we do?
-
Forest controversies and issues in the news
-
Forest values
- In 2002 $140 billion in business
- Soil Stabilization with root systems
- Biogeochemical and hydrologic pump
-
Coniferous and deciduous forests
-
Forest stand
- A group of tress in an area that are similar in species composition, age and structure and can be distinguished from adjoining forests
-
Primary and secondary ecological succession
- i.
- Primary Succession -> Old-growth forest
- If we harvest old-growth forest we set it back a few stages into secondary succession and if we leave it alone hopefully it will end up back as a climax community
-
-
Factors Influencing Forest Development
- Seeding and germination habits
- Birds and small mammals
- bird and insect pollinators
- indirect biotic impacts on forest production
- Pattern and rate of growth
- Competition for light
- Escape from herbivory
- recovery after disturbance
-
- I.
Conservation of Forest Resources
- i.
- Increasing public attention during the past few decades because
-
- loss of forest dwelling species
- Clear-cutting
- done the wrong way
-
Talk about Diseases and parasites effects on forest
- Parasitic fungi are most destructive – attack leaves, stems, branches, etc
- Viruses, bacteria, nematodes, mistletoe – can be deadly for a tree
- Larval insect defoilators
- Sucking insects like aphids
-
Pollution effects on forests
- Industrial
- urban areas in MDCs
- Acid
- rain, ozone, and SPM (dust, soot, asbestos, heavy metals)
- Leaf
- and bark damage, increase susceptibility to _____
|
|