. An assessment of the forest and range land situation in the United States. Forests and forestry United States; Forest management United States; Rangelands United States. When wildlife activities fall in this complementary part of the total scale, more can be done with a given budget. Unfortunately, there are few direct opportunities to directly improve the production of fish as a spinoff of timber harvesting or range use. Instead, multiple-use management for fish means avoiding damage from activities on the land, including avoiding the removal of streamside vegetation, physical damage to str
. An assessment of the forest and range land situation in the United States. Forests and forestry United States; Forest management United States; Rangelands United States. When wildlife activities fall in this complementary part of the total scale, more can be done with a given budget. Unfortunately, there are few direct opportunities to directly improve the production of fish as a spinoff of timber harvesting or range use. Instead, multiple-use management for fish means avoiding damage from activities on the land, including avoiding the removal of streamside vegetation, physical damage to stream- banks, excessive siltation, and the introduction of debris into water channels. Many streams that have been degraded in the past have the potential to once again become productive habitat for fish through natural processes if they are adequately protected. This process can be accelerated through management practices ranging from planting trees on streambanks or in denuded areas to mechanically altering a streambed. The maintenance of critical water levels through damming for both waterfowl and fish is an example of an activity that works to the advantage of several species. More often, changes in habitat conditions will favor some species and work against others. This is another sort of trade-off. A delicate balancing is sometimes necessary to simultaneously enhance habi- tats for species that require, say, mature forests and for species that prosper in openings. Endangered and threatened species. — Enhance- ment activities directed at endangered and threatened species vary widely because this designation includes dissimilar fauna. For some of these species, notably those restricted to limited areas, management consists of preserving the available habitat and protecting it from disruption. It is sometimes possible to extend restricted or depleted ranges by transplanting animals to presently unoccupied or newly developed habitats. Erecting artificial nests, incubating egg
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Keywords: ., book, bookcentury1900, booksubjectforestsandforestryunitedstates
