Results 161 to 170 of about 2,072,261 (198)
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Patch size of forest openings and arthropod populations

Oecologia, 1991
Five sizes of canopy openings (0.016 ha to 10 ha) were established in the Southern Appalachian Mountains in early 1982 to examine the initial patterns of plant and arthropod establishment across a size range of forest disturbances. Vegetation standing crop after the first growing season was considerably higher in large than small openings in apparent ...
D J, Shure, D L, Phillips
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Forested and Open Wetland Complexes

1992
In northern Sweden 3.8 million ha of the land surface is covered by mires, while another 1.7 million ha consists of moist or wet forest (i.e. forests with a high water table) (Svensson et al., 1989). The area occupied by wet forest, particularly the damp, shady type of late successional spruce, is steadily being reduced as a result of various forest ...
Kjell Sjöberg, Lars Ericson
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Effects of Linear Openings in Forests on Temperate Bird Communities

open access: yesEcology and Evolution
ABSTRACT Narrow, unpaved forest roads and paths are a ubiquitous feature of managed forest landscapes worldwide, with the potential to influence bird communities. However, compared to large roads, the effects of structural changes to the understory and canopy generated by unpaved forest roads and paths are less understood.
Mariela Yapu Alcazar   +2 more
exaly   +4 more sources

GPS moving performance on open sky and forested paths

2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2007
In this paper we present a systematic study of the performance of seven different configurations of GPS on a moving vehicle using three different GPS receivers. The seven different configurations are 1) single frequency code differential DGPS, 2) double frequency code differential DGPS, 3) RTK-GPS receiving RTCM correction from a mobile phone, 4) RTK ...
Luis Yoichi Morales Saiki   +1 more
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Forest opening issues in Croatia

1998
The paper deals with problems of Croatianforest opening and of attempts to increase the road density during the period 1991-1995. About 80 percent of Croatian forests and forest land are state forests. the public enterprise Hrvatske šume manages this national resource with its 16 Forest administrations.
Sever, Stanislav, Šunjić, Slavko
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Frost Depth in Forest and Open in Connecticut

Journal of Forestry, 1940
Abstract The question of the influence of a forest on its environment is a live and important one. More so in recent years because of extensive forestry programs to reduce soil erosion, regulate run-off, and to reduce wind velocities.
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RECOMMENDATIONS FOR LANDSCAPE IMPROVEMENT OF FOREST EDGE, OPEN AND SEMI-OPEN FOREST SITES ADJACENT TO HIGHWAYS

Materials of the All-Russian scientific and practical conference "Biotechnologies in innovative afforestation and reforestation, monitoring of forest and forest reclamation systems"
When carrying out landscaping works on highways, one should not ignore areas that pass through forests or areas that are adjacent to forests. After a number of measures, the aesthetic appearance of the forest on the road side becomes better than before. Special attention should be paid to landscape improvement of monotonous and monotonous forest edges,
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