Site Selection Factors Research Articles

Land Treatment Site Evaluation in Southeastern Mountainous Areas

Research Article| August 01, 1981 Land Treatment Site Evaluation in Southeastern Mountainous Areas GLENN L. TAYLOR, JR. GLENN L. TAYLOR, JR. Land Treatment Specialist Law Engineering Testing Company, 2749 Delk Road, SE Marietta, GA 30067 Search for other works by this author on: GSW Google Scholar Environmental & Engineering Geoscience (1981) xviii (3): 261–266. https://doi.org/10.2113/gseegeosci.xviii.3.261 Article history first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation GLENN L. TAYLOR; Land Treatment Site Evaluation in Southeastern Mountainous Areas. Environmental & Engineering Geoscience 1981;; xviii (3): 261–266. doi: https://doi.org/10.2113/gseegeosci.xviii.3.261 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEnvironmental & Engineering Geoscience Search Advanced Search Abstract Land treatment of municipal wastewater is a viable alternative to in-plant treatment and eliminates the environmental impact of direct discharge to surface waters. The design must be site specific to incorporate climatic, soil, geologic, hydrologic, and vegetation factors. The major processes in evaluating a land treatment site can be divided into two major phases: site evaluation and hydrologic budget evaluation. A site investigation is first completed to aid in the selection of a site and to assess its feasibility for land treatment. Seventeen site selection factors are identified and divided into two groups based on their impact to the site selection process. Once the general feasibility of the site has been determined, the hydrologic budget evaluation is used to estimate the wastewater hydraulic loading. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.

Economic production of estuary grouper, Epinephelus salmoides Maxwell, reared in floating net cages

The factors affecting production of estuary grouper, Epinephelus salmoides, in floating net cages are discussed. The concept of economic production in cage culture is outlined. Economic production of estuary grouper could be achieved by providing a suitable culture site with good water quality; ensuring proper farm management and regular maintenance of cages; preventing disease and ensuring efficient treatment; providing optimum stocking density, a balanced diet, optimal feeding frequency; manipulating fish behaviour by providing artificial hides; and manipulating physiological characteristics, e.g. by the use of growth promoters. The paper futher describes environmental parameters, such as dissolved oxygen content, water temperature, salinity, water current, bacteria count, pH, and bottom sediments, as important factors in site selection. Their effects on the growth and production of fish are discussed and their optimal levels determined. The problems involving management and maintenance of the farm are also outlined. The main problem in cage culture is fouling which demands considerable labour and money for cage maintenance. Other problems such as predators, poaching, and cannibalism are discussed at length. It is suggested that by manipulation of stocking density, production could be increased. The optimal stocking rate was found to be 60 fish/m 3 which gives a high yield of marketable fish. Stocking could be further intensified by providing artificial hides using used car tyres. The net production could be increased by 230% if hiding space of 251 cm 3 per fish was provided and the stocking density increased to 156 fish/m 3. Although formulated feeds enhanced growth by 27.1% over that of groupers fed on trash fish, the production cost was much higher, rendering the use of formulated feeds alone uneconomical for commercial fish culture. Growth promoters such as 17α-methyltestosterone and nitrovin have been found to promote growth of young estuary grouper by 43.4 and 62.8%, respectively. Using various combinations of culture techniques, it was shown that net production could be increased from 23.76 kg/m 3 using conventional culture methods to 136.75 kg/m 3 with a combination of hiding space, heavy stocking, appropriate feeding frequency and formulated feeds incorporating growth promoters. The production time was also shortened considerably from 6 months to 2.7 months. Cost-benefit analysis of the eight culture techniques tested indicated that the production cost could be reduced from US$2.00/kg with conventional methods to as low as US$1.28/kg using a sophisticated method. However, based on current market proces, the conventional culture technique was still economically feasible, as the net income over total capital costs was 33.3%. Improvements of the conventional culture technique will increase the ratio of net income over total capital costs by 1–3 times.

Soil and plant characteristics as determining factors in site selection for surface coal mine reclamation

Four vegetative associations occur on surface mines located in Mercer County, Pennsylvania. Seventeen different species of grasses and legumes and 30 different species of trees and shrubs were evaluated for their ability to become established and control erosion on surface mines. The amount of organic matter and soil moisture are the principle factors regulating the establishment of vegetative cover on surface mines. Those species possessing a fibrous root system are better able to adapt for erosion control than tap rooted species. Likewise, shrubs such as bristley locust (Robina hispida) and Silver Bush or Autumn Olive (Elaeagnus umbellata) that will produce shoots when a root becomes exposed due to erosion are better adapted for erosion control than other species. The methods and species utilized during reclamation will determine, at least in part, the future use of the land and should establish conditions for natural succession to occur.

An analysis of firm relocation patterns in metropolitan Denver, 1974?76

This paper examines geographic patterns of firm relocation in the Denver metropolitan area and factors responsible for the decision to move. A sample of 106 manufacturing, commercial, and service enterprises that relocated between 1974 and 1976 are analyzed. Major relationships between selected business operational characteristics, distance moved, and reasons for relocation are discussed. A comparative analysis of firms is undertaken to examine significant differences in relocation and new site selection factors by origin-destination, type of industry, and type of operation. Firm growth is identified as the primary stimulus for relocations and as an important force limiting spatial searches for alternative locations. Market centrality, site economics, and agglomeration economies are shown to be major constraints governing the selection of new sites. Several major issues associated with governmental policy influences upon firm relocations are considered briefly within the context of the empirical results.

Exploration Strategy for Unconventional Natural Gas Resource--Devonian Shales: ABSTRACT

Exploration rationales, exploration techniques, and prospects are the key elements of EGSP's ideal exploration strategy for the Devonian shales of the Appalachian, Illinois, and Michigan basins. An exploration rationale is a theory of how several known or suspected geologic circumstances may combine to create a favorable environment for the generation and accumulation of producible hydrocarbons. The unconventional nature of the Devonian shales as a natural gas resource demands shale-specific rationales. These are characterized by a hypothesized geologic mechanism for the creation of a natural fracture system, because fracture permeability is essential to shale production. Although fractures are a necessity, they alone are not sufficient. Hence, shale-specific rationales i clude supporting information on black shale thickness, kerogen content, thermal maturity, reported shows, production history, etc. Exploration rationales are area-specific, but generally not site-specific. Prospect development is the process by which site-specific prospects issue from area-specific rationales. Exploration techniques are the means employed, short of drilling, to evaluate rationales and optimize local geologic factors in site selection. The development of seven exploration prospects associated with the Newman Ridge and Greendale synclines in eastern Tennessee and southwestern Virginia illustrates EGSP's exploration strategy. End_of_Article - Last_Page 1577------------

Wheelchairs in the Woods

Abstract A forest recreation area accessible to persons in wheelchairs can be developed on a modest budget. Simple materials are adequate. Grade is the most important factor in site selection.

Public Health Factors in Reactor Site Selection

Factors of specific concern in the design and operating characteristics of nuclear plants to Federal, State, and local health agencies include physical and demographic site characteristics, potential air, water, land, and food contamination, land use, zoning, and exposure pathways. These factors must be considered to assure that the operation of one or more reactors at the selected site will not adversely affect the population and environment surrounding the plant. Research programs at operating power reactors are being coordinated to determine the methodology and analytical techniques required for an optimum surveillance program. The nuclear facility operator in cooperation with the State health agency should have a planned and rehearsed emergency plan which can be placed into effect to minimize adverse consequences in the event of an accident.