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Articles 8461 - 8490 of 8582

Full-Text Articles in Physical Sciences and Mathematics

Rural Residential Water Demand In Kentucky: An Econometric And Simulation Analysis, Orlen C. Grunewald, C. T. Haan, David L. Debertin, D. I. Carey Dec 1975

Rural Residential Water Demand In Kentucky: An Econometric And Simulation Analysis, Orlen C. Grunewald, C. T. Haan, David L. Debertin, D. I. Carey

KWRRI Research Reports

This study proposed that demand management through pricing policies can be used in conjunction with supply management to solve water supply problems in Kentucky. Economic principles were shown to apply to rural residential water use. From the economic model, a hyperbolic demand function was theorized. The mathematical form of this function used quantity of water as a function of price, income, value of residence, evaporation, and persons per residence. This function was estimated using ordinary least squares regression. A log-linear model was found to be a satisfactory representation of the demand function. Price was the only independent variable which was …


Socioeconomic Impacts Of The Second Stage Of The Southern Nevada Water Project And Its Alternatives, William T. White, Bernard Malamud, John E. Nixon Aug 1975

Socioeconomic Impacts Of The Second Stage Of The Southern Nevada Water Project And Its Alternatives, William T. White, Bernard Malamud, John E. Nixon

Publications (WR)

This study evaluates the socioeconomic impacts of the Second Stage of the Southern Nevada Water Project of the United States Bureau of Reclamation, comparing that project with the alternatives of importing water from Nevada areas somewhat removed from the Las Vegas Valley and of leaving the water supply of the Valley basically as it is, the no project alternative.

The study follows, with adaptations and extensions, the general methodology for socioeconomic impact studies as developed and still being evolved in successive socioeconomic analyses of Bureau of Reclamation water projects. The methodology recognizes that the complexity of modern society and water …


Evaluation Of A Recreational Lake Rehabilitation Project, Clyde Brashier Aug 1975

Evaluation Of A Recreational Lake Rehabilitation Project, Clyde Brashier

2019: Dr. Clyde Brashier

Lake Herman, a recreational, shallow, warm water prairie lake near Madison, South Dakota drain in extensively cultivated watershed and acts as a siltation basin for a chain of four lakes. The lake is more than half silted in and since 1968 various rehabilitation efforts have been made, including the construction of silt traps and lake dredging.

Continuation of the monitoring of twenty plus chemical levels and biological populations of green algae, blue-green algae and diatoms has revealed two major changes: (1) ortho phosphate and total phosphorus levels (which increased markedly with the beginning of dredging) have decreased since dredging has …


The Law Of Water Allocation In Kentucky, Richard C. Ausness, Bill H. Flynn Jul 1975

The Law Of Water Allocation In Kentucky, Richard C. Ausness, Bill H. Flynn

KWRRI Research Reports

This study discusses navigability concepts, consumptive rights to surface and ground waters, the disposal of diffused surface waters and the administration of Kentucky's statutory water allocation system.

Federal regulatory powers are based on navigability as is state ownership of submerged lands. Kentucky uses the ebb-and-flow test of navigability to determine title to submerged lands but uses a navigability-in-fact test to determine the scope of state regulatory authority. Consumptive uses of water in Kentucky are governed by the riparian landowner to use as much water as he needs as long as his use does not interfere with the legitimate uses of …


Vegetation Development In Relation To Age Of River Stabilization Structures Along A Channelized Segment Of The Missouri River, John Arthur Vaubel Jun 1975

Vegetation Development In Relation To Age Of River Stabilization Structures Along A Channelized Segment Of The Missouri River, John Arthur Vaubel

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

During the summer of 1974, I sampled sites of vegetation representative of successional trends in plant communities along the Missouri River floodplain from Sioux City, Iowa, to Rulo, Nebraska. Five district community types listed from youngest to oldest are as follows: Salix spp. – dominated, Populus deltoides – dominated, Platanus occidentalis-Ulmus rubra – dominated, Tilia americana-Quercus rubra – dominated, and Quercus macrocarpa-Carya ovata – dominated vegetation.

The technique of relating vegetation succession to age of river stabilization structures was found to be useful and offered a quite precise method of developing a timescale …


An Evaluation Of The Fishery Resources Of The Thames River Watershed, Connecticut, Connecticut Department Of Environmental Protection May 1975

An Evaluation Of The Fishery Resources Of The Thames River Watershed, Connecticut, Connecticut Department Of Environmental Protection

Storrs Agricultural Experiment Station

No abstract provided.


Seasonal And Spatial Variation In Primary Productivity In Boulder Basin, Lake Mead, Clark County, Nevada, Isamu Aoki May 1975

Seasonal And Spatial Variation In Primary Productivity In Boulder Basin, Lake Mead, Clark County, Nevada, Isamu Aoki

Publications (WR)

The 14C light and dark bottle technique for measurement of primary production was utilized as a means of assessing the amount of inorganic carbon being converted Into organic form by the photosynthesis of phytoplankton populations In the Boulder Basin of Lake Mead.

Spatial and time series changes of productivity levels observed at eight sampling locations within Boulder Basin Indicate that the Influence of treated municipal arts' industrial effluent flowing into Les Vegas Bay is contributing high levels of available nutrients at Las Vegas Wash Inlet to cause productivity to approximate those levels associated with polluted waters.

Productivity levels at …


Marine Orientation In The Republic Of South Africa, D. A. Bonvouloir Apr 1975

Marine Orientation In The Republic Of South Africa, D. A. Bonvouloir

Marine Affairs Theses and Major Papers

Discusses marine orientation in The Republic of South Africa through the following topics; inputs (geography, population, fisheries); input processing (governmental structure, economic development, maritime utilization); decision making processes (Value System as Filter); marine-related decisions (pollution, shipbuilding); and outputs (treaties and agreements, domestic status, conflicts).


Maritime Environment: A Systems Approach, Peter A. Roche Apr 1975

Maritime Environment: A Systems Approach, Peter A. Roche

Marine Affairs Theses and Major Papers

Some maritime activities may be independent of each other but most are in competition and some are supportive in one way or other with most other maritime activities. Fisheries and merchant vessels rarely are at odds over matters of ocean traffic. However, both those activities may object to obstructions related to offshore oil drilling. Both municipalities and fisheries complain of merchant vessel pollution. Companies of different, states compete for offshoreoil lease rights. On the other hand, synergy and sublimation sometimes result from interworkings of maritime activities. Complexes of offshore platforms increase fish congregations. Powerplant cooling ponds transmute thermal pollution into …


A Joint Action Model For Semi-Enclosed Seas: A First Cut, Arthur W. Tate Jr. Apr 1975

A Joint Action Model For Semi-Enclosed Seas: A First Cut, Arthur W. Tate Jr.

Marine Affairs Theses and Major Papers

Dr. Lewis Alexander of the University of Rhode Island authored a most informative and incisive paper concerning the relationship of regionalism and the Law of the Sea. In this paper Alexander focused on the special case of the semi-enclosed sea and suggested that the potential for joint action of nations surrounding these seas is worthy of special interest and study. Even a cursory review of a geographic atlas reveals that the 25 seas under consideration constitute rather definitive, logical, potential regions. Nations bordering a particular semi-enclosed sea assume at least one commonality immediately-the bordered sea. Such commonality theoretically infers that …


The Prediction Of Lake Huron Lake-Effect Snowfall Systems, Kenneth F. Dewey Jan 1975

The Prediction Of Lake Huron Lake-Effect Snowfall Systems, Kenneth F. Dewey

School of Natural Resources: Faculty Publications

Data was collected during the 1971-72 snowfall season for the Lake Huron basin. The bulk aerodynamic approach, as formulated by Priestly, was utilized to estimate the daily average flux of heat and moisture over the lake. It was hypothesized that discriminant analysis could be employed to determine the threshold value (discriminant index) of the energy flux which is necessary for the occurrence of the lake-effect snowfall system. To determine the validity of this threshold value, the discriminant index was applied to a series of historical data. The results of this analysis indicated that the discriminant index could be utilized to …


Accuracy Of Lysimetric, Energy Balance, And Stability-Corrected Aerodynamic Methods Of Estimating Above-Canopy Flux Of Co2, S. B. Verma, N. J. Rosenberg Jan 1975

Accuracy Of Lysimetric, Energy Balance, And Stability-Corrected Aerodynamic Methods Of Estimating Above-Canopy Flux Of Co2, S. B. Verma, N. J. Rosenberg

School of Natural Resources: Faculty Publications

No abstract provided.


Fisheries Report No 19 - The Western Rock Lobster Fishery 1973 - 1974, G. R. Morgan, E H. Barker Jan 1975

Fisheries Report No 19 - The Western Rock Lobster Fishery 1973 - 1974, G. R. Morgan, E H. Barker

Fisheries Research Reports

The fishery for the western rock lobster* is one of the most important single fisheries in Australia and an important export earner for the State. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and which are designed to limit the total effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both to ensure that the effort is remaining within the accepted limits and that the regulations are adequately performing their function of maintaining reasonably stable catches. Inherent …


Historical Survey Of The Van Duzen River Basin, Susie Van Kirk Jan 1975

Historical Survey Of The Van Duzen River Basin, Susie Van Kirk

Susie Van Kirk Papers

This paper is an edited version of two separate reports. The first, Van Duzen Basin Atlas, California State Department of Water Resources and the County of Humboldt, was prepared under the direction of Don Tuttle, Resources Analyst for Humboldt County (listed as "Van Duzen Basin Study: Historical Research on Houses in Hydesville-Carlotta Area"). This version, Van Duzen Management Plan, California Department of fish and Game, was directed by Environmental Research Consultants, Inc., Arcata.


Van Duzen Basin Study: Historical Research On Houses In Hydesville-Carlotta Area, Susie Van Kirk Jan 1975

Van Duzen Basin Study: Historical Research On Houses In Hydesville-Carlotta Area, Susie Van Kirk

Susie Van Kirk Papers

This paper is an edited version of two separate reports. This report, Van Duzen Basin Atlas, California State Department of Water Resources and the County of Humboldt, was prepared under the direction of Don Tuttle, Resources Analyst for Humboldt County (listed as "Van Duzen Basin Study: Historical Research on Houses in Hydesville-Carlotta Area"). The second report, Van Duzen Management Plan, California Department of fish and Game, was directed by Environmental Research Consultants, Inc., Arcata (listed as "Historical Survey of Van Duzen River Basin").


Fisheries Report No 18 - Tuna Survey In Waters Off The Western Australian Coast During The Period August 1973 To August 1974, J. P. Robins Jan 1975

Fisheries Report No 18 - Tuna Survey In Waters Off The Western Australian Coast During The Period August 1973 To August 1974, J. P. Robins

Fisheries Research Reports

In September 1972, Markwell Ross Fisheries Pty Ltd (a subsidiary fishing division of Q.U.F. Industries Ltd) approached the Western Australian Department of Fisheries and Fauna (now Department of Fisheries and Wildlife) for assistance in the development and carrying out of a purse seining programme using the 25m rock lob­ster vessel F.B. Western Star.

Negotiation and agreement was reached, with the objective to under­take and carry out an investigation into the feasibility of developing a purse seine fishery for tuna in Western Australian waters. The Department of Fisheries and Wildlife (Development Section) supplied, on loan, capital fishing equipment (purse seine net, …


Fisheries Report No 16 - Notes On The Wildlife Of A Proposed Nature Reserve Around Lake Grace And Lake Chinokup, Western Australia, N. L. Mckenzie, W. K. Youngson Jan 1975

Fisheries Report No 16 - Notes On The Wildlife Of A Proposed Nature Reserve Around Lake Grace And Lake Chinokup, Western Australia, N. L. Mckenzie, W. K. Youngson

Fisheries Research Reports

During 1972 and 1973 plants and vertebrate animals were collected and recorded from a proposed 22 000 ha nature reserve centred on a chain of salt lakes in south-western Western Australia (33° 10' S - 33° 35' 8 and 118° 19' B - 118° 29' E).

The dominant plant species were collected, the structural formations desert bed and a vegetation map produced. Seven species of native terrestrial mammal and three species of bat were recorded.

Three of the terrestrial species are endemic to southwestern Western Australia, and two of these - Pseudomys occidentalis and Sminthopsis granulipes - are regarded as …


Fisheries Report No 17 - Some Aspects Of Tuna And Its Potential In The Oceanic Waters Off Western Australia, J. P. Robins Jan 1975

Fisheries Report No 17 - Some Aspects Of Tuna And Its Potential In The Oceanic Waters Off Western Australia, J. P. Robins

Fisheries Research Reports

In this report an endeavour has been made to describe very briefly the growth of the tuna fishery in Australia, world production, utilisation, price and future demand, tuna species descriptions, species occurrence around the Australian coast and the results of two aerial surveys for tuna off. the west and north-west coasts of Western Australia.


A Survey Of Land Suitable For Townsville Stylo In The North Kimberley Of W.A. 1973, A Kubicki, J. Beer Jan 1975

A Survey Of Land Suitable For Townsville Stylo In The North Kimberley Of W.A. 1973, A Kubicki, J. Beer

Books & book chapters

The aims of the survey were to -

(a) define the extent and actual location of country suitable for the production of non-indigenous pastures; in particular to classify the land for its suitability for Townsville stylo (Styioaanthes hurniiia).

(b) map the areas so defined on a land system basis.

The area surveyed covered approximately 88 000 sq.km (33 968 sq.miles) and included most of the catchments of the Carson, Drysdale, King Edward, Prince Regent, Charnley, Isdell and Chapman Rivers. It covered the country between latitude 14°S and 17°S and longitude 124°30'E and 127°30'E.


Biological Inventory In Conjunction With The Las Vegas Wash Unit, Colorado River Basin Salinity Control Act Title Ii (P.L. 93-320), W. Glen Bradley, J. Scott Miller Jan 1975

Biological Inventory In Conjunction With The Las Vegas Wash Unit, Colorado River Basin Salinity Control Act Title Ii (P.L. 93-320), W. Glen Bradley, J. Scott Miller

Publications (WR)

The present report is a biological inventory in conjunction with the Las Vegas Wash Unit, Colorado River Basin Salinity Control Act, Title II. The boundaries of the project encompass sections of North Las Vegas, Las Vegas, East Las Vegas and areas along Las Vegas Wash extending to its drainage point in Las Vegas Bay in Lake Mead. Therefore, it encompasses a wide array of ecological situations and landscapes ranging from essentially natural to various stages of urban development. This biological inventory presents basic ecological classifications, descriptions of vegetation, lists of vascular plants and vertebrates known to occur in the area. …


Raising Wood Ducks, Richard L. Nelson Jan 1975

Raising Wood Ducks, Richard L. Nelson

Nebraska Game and Parks Commission: Publications

Numbered among Nature's most colorful creatures, wood ducks willingly accept a helping hand from man in establishing new homes. These birds adapt well to suitable habitat, and you can play an important part in bringing the wood duck to locations where they do not now nest. For groups or individuals who are willing to expend the effort necessary to undertake a wood duck restoration project anti see it to completion, it is an exceptional gift from today's generation to those of decades and centuries to come. Many areas in Nebraska provide suitable wood duck habitat, but do not have a …


Bulletin 3933 - Trickle Irrigation For Home Gardens, K Cole Nov 1974

Bulletin 3933 - Trickle Irrigation For Home Gardens, K Cole

Bulletins - 3000 - 3999

The use of trickle irrigation in the home garden can save money, time and water.

Trickle irrigation is a concept first used in glasshouses in England, then applied to field crops in Israel and developed and refined in Australia and America. Today it is widely used in orchards, vineyards, vegetable gardens and now has gained wide acceptance in the growing of ornamental plants.

Any good trickle system uses small quantities of water over an extended period of time. In the home garden, flows of 2.25 litres to 4.5 litres per hour are usual though for small shrubs lesser amounts may …


The European Economic Community: Example Of Regionalization Of The Sea?, B. Deniaux Jul 1974

The European Economic Community: Example Of Regionalization Of The Sea?, B. Deniaux

Marine Affairs Theses and Major Papers

The European Law and power has not such a world-wide application nowadays, and it is rather against the rules created by the old European order that the nations formed during the second part of this century have begun a rebellion process. One can address the following questions: what exactly is nowadays the action of the European Community at sea: is there a common policy of the common Market toward marine related problems? If there is one, what is the actual impact of this policy at the international level, and especially these days, in regards of the Law of the Sea …


Fisheries Report No 14 - Wilson Inlet - A Seasonally Closed Western Australian South Coast Estuary, R C.J. Lenanton Jun 1974

Fisheries Report No 14 - Wilson Inlet - A Seasonally Closed Western Australian South Coast Estuary, R C.J. Lenanton

Fisheries Research Reports

Considerable conflict has existed for many years between professional fishing, recreational usage and development in the west and south coast estuaries of Western Australia. One of the areas where intense conflict exists is Wilson Inlet.

The Government's task of advising the various interests concerned in these conflicts has been difficult, due to the lack of knowledge of estuarine fauna and environment in relation to usage and development.

The objective of this report is to present a preliminary description of the Wilson Inlet environment, to record the history of netting closures in the Inlet, and to discuss the history of the …


The Dilemma Of Deep Ocean Mining, Paul W. Dillingham Jr. Apr 1974

The Dilemma Of Deep Ocean Mining, Paul W. Dillingham Jr.

Marine Affairs Theses and Major Papers

Mineral substances and materials derived from them, whether in the form of fuels, construction materials, metals for farbication, tools, chemicals, or fertilizers, are the foundation of our technological civilization. The modern industrial civilization depends upon the continued availability of mineral raw materials. The problem is not one of actual scarcity ; the raw materials are there in the ground and in the sea in great supply. The question and the uncertainty is economic; How will these resources be recovered and by whom? This proposition becomes the central force in order to adjust to the new resources climate.


Bulletin No 3883 - Dairying In W.A., Western Australian Department Of Agriculture Apr 1974

Bulletin No 3883 - Dairying In W.A., Western Australian Department Of Agriculture

Bulletins - 3000 - 3999

Western Australia has a small dairy industry compared with its other rural production. However, the industry has consolidated over recent years.

Tree clearing and pasture development on existing holdings and the amalgamation of small dairy farms has led to a rapid increase in the area of pasture per farm. The trend in Western Australia is towards bigger herds, more efficient dairies, more fodder conservation and increasing production per cow and per· hectare.


Fisheries Report No 15 - The Western Rock Lobster Fishery 1972 - 1973, G. R. Morgan, E H. Barker Jan 1974

Fisheries Report No 15 - The Western Rock Lobster Fishery 1972 - 1973, G. R. Morgan, E H. Barker

Fisheries Research Reports

The fishery for the western rock lobster* is one of the most important single fisheries in Australia and an important export earner for the State. The fishery is governed by a complex set of regulations which have been reviewed by Bowen (1971) and which are designed to limit the total effort to acceptable levels and to enforce a legal minimum size. It is thus important to constantly monitor the state of the fishery both to ensure that the effort is remaining within the accepted limits and that the regulations are adequately performing their function of maintaining reasonably stable catches. Inherent …


The Gulf-Atlantic Waterway: Instrument To Increase Profit Margins In The Jacksonville Area, Jacksonville Area Chamber Of Commerce Research Department, Jay A. Smith Jan 1974

The Gulf-Atlantic Waterway: Instrument To Increase Profit Margins In The Jacksonville Area, Jacksonville Area Chamber Of Commerce Research Department, Jay A. Smith

Waterways and wildlife

The purpose of this report is to reassess the economic value that the Gulf-Atlantic Waterway will have on Duval county. This will show the direct relationship on the Port and the indirect benefits to other segments in our economy. This is needed for three reasons: 1. The last economic study was completed by the Corps of Engineers with the assistance of Arthur D. Little, Inc., a national consulting firm, in 1962. So, it has been almost twelve years since an economic report has been started from scratch. 2. The economic reports in the past have been mainly concerned with cost/benefit, …


Evaluation And Impact Of Planning And Development Under The Washington State Shoreline Management Act, Donald S. Skone Jan 1974

Evaluation And Impact Of Planning And Development Under The Washington State Shoreline Management Act, Donald S. Skone

All Master's Theses

The Shoreline Management Act of 1971, ballot proposition 43B, was approved by the voters of the State of Washington on November 7, 1972. The Act is designed to prevent uncoordinated and piecemeal development of the shorelines in Washington State. This study focuses on the impact of the Shoreline Management Act on development of the shorelines. Emphasis is placed on the non-development nature and intent of the Act. Included is a sample study of implementation of the Act under the Guidelines.


Land Systems Of The Brockman River Catchments, S. Porritt Jan 1974

Land Systems Of The Brockman River Catchments, S. Porritt

Natural resources published reports

The survey was conducted to gain basic information about the agricultural land use of the Brockman River Catchment. The University of Western Australia Faculty of Agriculture was interested in the area as a compact, agriculturally diverse area close to Perth which was, therefore, suitable for filed studies. The Department of Agriculture, Moora Office was interested in this study as a framework within which to improve its extension services in the area.

Both parties cooperated in investigations of the area by providing data and equipment. Field work was carried out in summer 1973-74 and data compiled by an agricultural science student …