نتایج جستجو برای: forestry management
تعداد نتایج: 859308 فیلتر نتایج به سال:
ce. Gen. Tech. Rep. PNW-GTR-635. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 389p. O'HARA, K. L., R. S. SEYMOUR, S. D. TESCH and J. M. GULDIN (1994): Silviculture and our changing profession: leadership for shifting paradigms. J. For. 92(1): 8-13 PETERSON, C. E. and D. A. MAGUIRE (eds). (2005): Balancing ecosystem values: innovative experime...
The New Zealand Resource Management Act emphasises, among other things, the evaluation of the effects of forestry operations, and the inclusion of those affected into the decision making process. Visual images are a useful method for displaying the effects of planned forestry activities, and are easily understood by most of the general public. While the creation of fully accurate photo-realisti...
© WILDLIFE BIOLOGY · 9:4 (2003) Biodiversity concerns are now seen as crucial factors in Finnish forestry, also outside nature reserves, i.e. in commercial forests. Foresters and other people earning their living from forestry are often rural people, and hunting is their axiomatic activity or has been a hobby since their youth. This is perhaps why forest professionals in Finland have always bee...
Forest management practices such as clearcutting, site preparation, ditching, and ditch network maintenance increase nitrogen (N) load to streams. In environmentally sustainable forestry, water protection actions are required to decrease the nutrient loading. These include e.g. use of uncut buffer zones between a clear-cut area and a waterbody, sedimentation ponds in the ditch network and overl...
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