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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 20 of 30 for “"Management Zones"”.
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Nutrient Movement in Streamside Management Zones and Piedmont Streams Following Forest Fertilization
Many states' Best Management Practices (BMP) programs established Streamside Management Zone (SMZ) widths based on limited or inadequate data with regard to nutrient fluxes from silvicultural activities. Previous studies in forested watersheds have shown slight post-harvest increases of several …
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Utilizing Remotely Piloted Air Systems in the Delineation of Functional Land Management Zones
… provides an avenue to achieve this and management zones are essential to precision agriculture. Traditional methods of sampling to gather soil information are labor intensive and time consuming; it is necessary to find faster alternatives. Remote sensing and digital soil mapping (DSM) …
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Arthropod damage in corn across site-specific management zones and differing water and nitrogen levels
Site-specific insect management has the potential to make pest management more efficient, but has yet to be implemented. One method of implementing site-specific management would be to make decisions at the management zone level. Management zones are homogenous subregions within a field that can be …
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Effects of Forestry Streamside Management Zones on Stream Water Quality, Channel Geometry, Soil Erosion, and Timber Management in the Virginia Piedmont
… include determining if a 50-foot streamside management zone (SMZ) as described in the Virginia BMP Manual (VDOF 2002) is generally sufficient to protect stream water quality, riparian soils, and stream bank integrity in headwater streams where forest harvesting has taken place, as well as …
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Movement behaviour of the Green Jobfish (Aprion virescens), the Potato Bass (Epinephelus tukula) and the Giant Trevally (Caranx ignobilis), on South Africa's coral reefs
… and to place different demands on spatial management strategies. The three species of coral reef meso-predators, potato bass (n=35), green jobfish (n=38) and giant trevally (n=9) were tagged with acoustic transmitters and released within a widespread receiver array (n=46) spanning …
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Policy memorandum Outeniqua and Langkloof mountains Southern Cape.
… agricultural land, in the Southern Cape. Active management is imperative if the ecosystems are to remain viable. An adaptive system of management is used to determine a management policy for the area. Literature and field surveys supplied data for a basic description of the ecosystems Management …
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Seasonal variation, spatial distribution and decision–making system to control of the Leucoptera coffeella in coffee arabica fields
… incidence of L. coffeella is essential to field management. The objective of this study was to evaluate the seasonality of the L. coffeella population and the factors that regulate its dynamics in coffee crops located in the Atlantic Forest and the Cerrado biomes. We aim to determine the spatial …
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Economic Tools to Improve Forest Practices' Outcomes
… three, a novel approach to design Streamside Management Zones widths that vary according to different landscape characteristics is presented, as opposed to the constant command and control width currently used in Virginia. This adaptive approach allows landowners to maximize land value, while …
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An evaluation of the pressure-leakage response of selected water distribution networks in South Africa
… distribution systems. For this reason, pressure management has become standard practice in reducing leakage in water distribution networks around the world. A range of N1 values have been published following studies of the impact of pressure management. Further studies have contributed towards …
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Loggers' perceptions of the costs of best management practices on timber harvesting operations in Virginia
… the estimated cost for implementing best management practices (BMPs) on harvested sites. BMPs analyzed in this study are pre-harvest planning, road construction, broad base dips, water turn-outs, water bars, streamside management zones, stream crossings, and site stabilization. Loggers …
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Logging in the Streamside Management Zone: Effects of Harvesting System and Intensity on Visual Soil Disturbance
Streamside management zones (SMZs) are a common and effective mechanism used to protect and maintain water quality during timber harvesting operations. In the southeastern United States timber harvesting is typically allowed inside the SMZ, but there is little information regarding suitable types …
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Effects of Forested Streamside Management Zone Widths and Thinning on Carbon Dynamics and Benthic Macroinvertebrates for Pine Plantations in the Piedmont of Virginia
… Act of 1972 promoted the establishment of Best Management Practices (BMPs) for forestry. A commonly used BMP is the reservation of Streamside Management Zones (SMZs). In this study the effectiveness of three different SMZ widths, 30.5 m (100 ft), 15.3 m (50 ft), and 7.6 m (25 ft), as well as …
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Streamside Management Zone effectiveness for protecting water quality following forestland application of biosolids
… nutrient availability. Retaining streamside management zones (SMZs) can limit nutrient pollution of streams. We delineated 15 m SMZs along three intermittent streams in an 18-year-old Pinus taeda L. plantation. We applied biosolids outside the SMZ on one side of each of the streams …
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Heat transfer, evaporation and carbon dioxide transfer in soil
… fluxes with depth in bare soil and in different management zones of a corn field and to evaluate in situ measurement techniques.</p> <p>Three-needle heat pulse sensors were used to measure subsurface soil water evaporation at depths of 3 mm and below in a bare field. The daily evaporation …
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Amphibian and Reptile Community Responses to Forest and Riparian Disturbance
<p>Riparian zones are transitional, semi-terrestrial areas regularly influenced by freshwater. These areas serve as dispersal corridors for many animal and plant species and ultimately function as important reservoirs of biodiversity in altered landscapes. While much of the riparian habitat in the …
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Operational characteristics, erosion potential, and implementation of forestry best management practices on biomass harvesting operations
… on soil erosion and implementation of Best Management Practices (BMPs) for water quality on biomass harvesting sites. Results indicate that biomass harvesting was integrated into a wide range of logging businesses. Existing biomass harvesting businesses reported total production levels …
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EVALUATING RISK OF LEAD EXPOSURE IN SCAVENGING SPECIES LINKED TO BIG-GAME HUNTING IN SASKATCHEWAN, CANADA
… mule deer varied significantly across wildlife management zones, potentially influencing exposure risks for scavengers by means of offal-derived lead. Scavenger community analyses showed that snow depth influenced community assemblage, while ecoregion and minimum daily temperature significantly …
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Assessing and Evaluating Recreational Trails on Public Lands
… associated with the trail networks by park management zones compare park management goals to the assessed attributes. Hotspot analyses highlight areas of high trail density within the park and findings provide insights regarding potential causes for development of dense informal trail …
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Relationships Between Streamside Management Zone Width and Biotic Communities of Headwater Streams in West Virginia
The importance of streamside management zones (SMZ) in minimizing the impact of non-point source pollution from silvicultural operations is recognized by the forestry Best Management Practices of most states. However, research concerning the SMZ width and harvesting intensity required to maintain …
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