نتایج جستجو برای: foresters
تعداد نتایج: 397 فیلتر نتایج به سال:
Managed forests are increasingly being used for recreation. As a result, foresters may be expected to tailor silvicultural treatments to accommodate specific recreation preferences. To better understand changes in hiking and camping quality in the years following a harvest, six sites on the Oregon State University's research forest were evaluated annually for 11 years. Multiple comparison and r...
Forest infrastructure is an important material basis for healthy forests. According to public goods theory, most forest infrastructures are quasi-public goods, with demand exceeding supply, more than one supplier, unclear responsibilities between suppliers, and a resultant free-rider problem. This study explored ways improve the supply of when government—as leader—cooperates foresters—as follow...
Two field studies were conducted in 2001-2002 and 2003 to evaluate the effectiveness and appropriate application timing of Golden Pest Spray Oil (GPSO) for destruction of gypsy moth, Lymantria dispar (L.) (Lepidoptera: Lymantriidae), egg masses in Wisconsin. GPSO is a commercially available, registered pesticide that is predominantly comprised of a soybean-oil base (93%); its primary mode of ac...
In transition to community-based forest management (CBFM) paradigm, transformation in the role of foresters from ‘controller’ to ‘facilitator ‘, is taken for granted. Given the militaristic culture of forestry agencies in most developing countries, this change is bound to face resistance. Using structural equation modeling technique, this paper examines two dimensions of resistance – disapprova...
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