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Results 1 - 6 from 6 for presettlement trees in 0.239 sec.
Restoring Ecosystem Health in Ponderosa Pine Forests of the Southwest (Page 2 of 2)
Although some thinning of postsettlement ponderosa pine trees was accomplished ... resistance and presettlement trees. Grasses, forbs, and shrubs are responding favorably as well, indicating a shift away from a net primary productivity dominated by pine trees toward ...
www.cpluhna.nau.edu
Within the Beauty Strip: Forest Management as if Salmon Mattered
Maine's presettlement forest landscape ensured: pure, clean water, with minimal silt; cool water from ground waters sheltered ... are from soil disturbance from trails, yards, and roads, rather than the cutting down of trees. • Herbicides and insecticides can ...
www.meepi.org
Riparian Areas on the Colorado Plateau
Common native trees and shrubs, depending on location and elevation, include narrowleaf cottonwood (Populus angustifolia), box-elder ( ... feet, spread rapidly throughout the system via wind-dispersed seeds. Overall, a 90% loss of presettlement riparian ecosystems has occurred in Arizona and New Mexico. For an essay on the ...
www.cpluhna.nau.edu
Protect Our Woods: Conservationist’s Alternative Section 3. Need for Change: Specific Management Issues
In 1996, national forest system timber sales cost taxpayers $791 million. Trees sold from public forests also compete with privately-owned timber, ... in the forest by the falling over of large mature trees. Larger openings created by major storm events occur less frequently ... of natural fire. Even fires set by Native Americans in presettlement times for villages and agricultural sites were small in scope ...
protectourwoods.org
Dogwood Alliance - Endangered Forests Types
The community reproduces in small-scale patches resulting from wind disturbance. The presettlement extent of the Southern Appalachian spruce-fir community has been estimated as 30,000 ... maple sweetgum, black walnut, and pine. Vegetative composition and structure vary with flooding duration. Trees are vulnerable to prolonged changes in hydrology and are characterized by rapid growth. ...
dogwoodalliance.org
Dogwood Alliance - Endangered Forests Types
The community reproduces in small-scale patches resulting from wind disturbance. The presettlement extent of the Southern Appalachian spruce-fir community has been estimated as 30,000 ... maple sweetgum, black walnut, and pine. Vegetative composition and structure vary with flooding duration. Trees are vulnerable to prolonged changes in hydrology and are characterized by rapid growth. ...
dogwoodalliance.org
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