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A fir tree snag among living fir trees. In forest ecology, a snag refers to a standing dead or dying tree, often missing a top or most of the smaller branches.In freshwater ecology it refers to trees, branches, and other pieces of naturally occurring wood found sunken in rivers and streams; it is also known as coarse woody debris.
Coarse woody debris (CWD) or coarse woody habitat (CWH) refers to fallen dead trees and the remains of large branches on the ground in forests [1] and in rivers or wetlands. [2] A dead standing tree – known as a snag – provides many of the same functions as coarse woody debris. The minimum size required for woody debris to be defined as ...
Salvage logging is the practice of logging trees in forest areas that have been damaged by wildfire, flood, severe wind, disease, insect infestation, or other natural disturbance in order to recover economic value that would otherwise be lost.
The management techniques within a wildlife management area include developing a habitat for wildlife along with conserving natural land resources. Land resources within a wildlife management area are conserved by not allowing the harvest of tree species or alteration of the land in any way. [37]
Forest dieback presents itself in many ways: falling off of leaves and needles, discolouration of leaves and needles, thinning of the crowns of trees, dead stands of trees of a certain age, and changes in the roots of the trees. It also has many dynamic forms. A stand of trees can exhibit mild symptoms, extreme symptoms, or even death.
Wildlife management is the management process influencing interactions among and between wildlife, its habitats and people to achieve predefined impacts. [ 1 ] [ 2 ] [ 3 ] Wildlife management can include wildlife conservation , population control , gamekeeping , wildlife contraceptive and pest control .
Active forest and fuels management may be required beyond the initial fire response in order to promote future forest resilience to disturbance and climate change. Due to fire exclusion, uncharacteristically dense patches of dead trees may contribute to high-severity reburns as they fall and create heavy surface fuel accumulations
Variable retention harvesting retains more than 15% of the original stand in both rolling and permanent pockets of untouched trees and refugia patches. Retained forest structure is composed of live and dead trees that enhance structural diversity, and provide a hospitable habitat for