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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"forest road"”.
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Geospatial Modeling of Forest Road Networks and Their Effect on Stream Macroinvertebrate Communities
Road construction and maintenance throughout the country continues to be one of the largest contributors of sediment pollution to aquatic systems. Though impacts of road networks on aquatic systems can be potentially severe, little work has been performed to evaluate the effect that road spatial …
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Modeling the Effects of Forest Road Density on Streamflow in the Blue Ridge Mountains
Forested watersheds have often been managed for flood mitigation. Studies have shown that forests have the potential to minimize peak flows during storm events, yet the relationship between forests and flooding is inexact. Forest roads, usually found in managed systems, can potentially magnify the …
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Evaluación de procesos de erosión en pistas forestales no pavimentadas: (Sistema Ibérico noroccidental, La Rioja)
… without the construction of a dense network of forest road in the world that has caused a great variety of environmental impacts, a lot of them negative, specially geomorphological impacts. Road building in mountain areas has a notable geomorphological impact. Several factors like: the breaking …
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Opportunities for coordinated road management on public lands for purposes of ecosystem management: the case of the greater Yellowstone ecosystem
This study examines opportunities for coordinated road management for purposes of ecosystem management. The coordination efforts in Greater Yellowstone provide a case study illustrating these opportunities. The study first reviews current literature about ecosystems, ecosystem management goals, …
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Effectiveness, cost, and implications of forest haul road stream crossing structures and best management practices in Virginia
Forest roads and stream crossings have the potential to be sources of sediment from forest operations. Recent litigation has renewed interest in furthering research related to forest road Best Management Practices (BMPs). Three legacy (100 year old) forest road stream crossings were monitored for …
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Location and Design of Recreational Hiking Trails: Application of GIS Technology
… facilities and resources increases. The U.S. Forest Service, National Park Service, and other recreation providers are constrained by limited time and funding to plan for, and implement, recreational facilities for the areas that they serve. Poorly located and designed recreational trails …
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Evaluating soil productivity and climate change benefits of woody biochar soil amendments for the US Interior West
… irrigation agricultural systems, and to support forest road restoration efforts. It also employs laboratory incubations and soil biogeochemical modeling to predict and to better understand the controls on biochar's greenhouse gas mitigation potential. The field studies demonstrate that this woody …
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The Effects of Stream Crossings and Associated Road Approaches on Water Quality in the Virginia Piedmont
Stream crossings are an integral component of forest road systems that provide access for timber harvesting and silvicultural activities. Stream crossings and their associated approaches are often the most critical point of concern for water quality along forest roads. Several types of crossings …
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Η ΑΝΤΟΧΗ ΚΑΙ ΟΙΚΟΝΟΜΙΚΟΤΗΤΑ ΤΩΝ ΔΑΣΙΚΩΝ ΓΕΦΥΡΩΝ ΓΙΑ ΤΙΣ ΕΛΛΗΝΙΚΕΣ ΔΑΣΙΚΕΣ ΣΥΝΘΗΚΕΣ
… HAVE BEEN COLLECTED AND ANALYSED: I. SURVEY OF FOREST DEPARTMENT. II. TRAFFIC CONDITIONS. III. TECHNICAL CHARACTERISTICS. HAVE BEEN DETERMINED: 1.THE CORRELATION BETWEEN THE NUMBER OF FOREST- BRIDGES AND ROAD DENSITY OR UTILIZATION. 2. THE TRAFFIC WHICH HAS BEEN DETERMINED IS 3-4 VEHICLE / 15' …
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Sediment Delivery from Reopened Forest Roads at Stream Crossings in the Virginia Piedmont Physiographic Region, USA
… to control surface runoff and erosion from forest roads at stream crossings are critical for the protection of aquatic ecosystems in forests. In this research, annual and event-based sediment delivery rates were estimated for reopened legacy roads at forest stream crossings in the Virginia …
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ΜΙΑ ΠΡΟΤΑΣΗ ΓΙΑ ΝΕΕΣ ΠΡΟΔΙΑΓΡΑΦΕΣ ΜΕΛΕΤΗΣ ΔΑΣΙΚΩΝ ΔΡΟΜΩΝ
THE CLASSIFICATION AND DENSITY OF FOREST ROADS IN GREECE IS DISCUSSED IN THIS DOCTORAL THESIS TOGETHER WITH SOME OTHER RELATIVE TOPICS, AS: DETERMINATION OF THE PARAMETERS AND THE RELATION ESTIMATES OF THE CHARACTERISTIC SIZE OF THE CROSS- SECTION. STUDY OF THE SIGHT DISTANCE PROBLEM GIVING TABLES …
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The effect of road crossings on stream-associated salamanders within Holly Springs National Forest
Road crossings have significant effects on wildlife, but there is limited information on how road crossings affect stream-associated salamanders. Stream-associated salamanders are vital to their ecological communities and are likely to experience the effect of roads more readily than other species …