Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (2862)
- University of Colorado Law School (1477)
- Department of Primary Industries and Regional Development, Western Australia (540)
- William & Mary (489)
- University of Nevada, Las Vegas (226)
-
- SIT Graduate Institute/SIT Study Abroad (184)
- Portland State University (138)
- Nova Southeastern University (122)
- University of Rhode Island (112)
- Selected Works (109)
- Utah State University (94)
- South Dakota State University (91)
- The University of Maine (90)
- University of Tennessee, Knoxville (88)
- Iowa State University (84)
- University of Vermont (74)
- Bridgewater State University (73)
- University of Kentucky (72)
- Grand Valley State University (70)
- SelectedWorks (65)
- Wilfrid Laurier University (54)
- Central Washington University (52)
- The University of San Francisco (52)
- University of Southern Maine (48)
- University of Montana (47)
- Chinese Academy of Sciences (44)
- Cal Poly Humboldt (43)
- University of Arkansas, Fayetteville (39)
- University of New Mexico (36)
- California Polytechnic State University, San Luis Obispo (34)
- Keyword
-
- United States (451)
- Western Australia (333)
- Colorado (301)
- Research and Technical Reports (245)
- Groundwater (233)
-
- Climate change (223)
- Management (202)
- California (197)
- Natural resources (195)
- Water quality (190)
- Conservation (188)
- GIS (187)
- Nebraska (185)
- Virginia (176)
- Water (164)
- West (164)
- Salinity (156)
- Agriculture (152)
- New Mexico (145)
- Wyoming (142)
- Arizona (136)
- Land use (134)
- Drought (130)
- Shoreline Inventories (129)
- Utah (126)
- Endangered Species Act (123)
- Sustainability (122)
- BLM (117)
- Public lands (116)
- Irrigation (111)
- Publication Year
- Publication
-
- School of Natural Resources: Faculty Publications (1220)
- United States Department of Agriculture Wildlife Services: Staff Publications (494)
- Reports (355)
- School of Natural Resources: Dissertations, Theses, and Student Research (247)
- Resource management technical reports (234)
-
- Independent Study Project (ISP) Collection (171)
- JFSP Research Project Reports (160)
- Daugherty Water for Food Global Institute: Faculty Publications (109)
- Marine Affairs Theses and Major Papers (108)
- United States National Park Service: Publications (108)
- Electronic Theses and Dissertations (107)
- Books, Reports, and Studies (91)
- Data (73)
- The OTEC Liaison (70)
- High Plains Regional Climate Center: Personnel Publications (64)
- National Quail Symposium Proceedings (64)
- Allocating and Managing Water for a Sustainable Future: Lessons from Around the World (Summer Conference, June 11-14) (60)
- Fisheries research reports (60)
- Graduate College Dissertations and Theses (60)
- Publications (WR) (59)
- Droughtscape, Quarterly Newsletter of NDMC, 2007- (54)
- Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002) (53)
- Theses and Dissertations (Comprehensive) (53)
- AWRI Reviews (51)
- Steven P. Bradbury (51)
- Fisheries management papers (49)
- Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts (49)
- Dissertations, Theses, and Masters Projects (47)
- Bulletin of Chinese Academy of Sciences (Chinese Version) (44)
- Master's Projects and Capstones (44)
- Publication Type
Articles 8491 - 8520 of 8565
Full-Text Articles in Physical Sciences and Mathematics
Comprehensive Land Use Planning: Its Development And Potential Impact On Coastal Zone Management, Raymond A. Siuta
Comprehensive Land Use Planning: Its Development And Potential Impact On Coastal Zone Management, Raymond A. Siuta
Marine Affairs Theses and Major Papers
Presently, the United States is in the midst of a "revolution" concerning the management and use regulation of its land resources. This peaceful "revolution" is occurring as a consequence of local government's inability to properly enforce land use controls and to adequately cope with rapid land development. However, this paper in discussing land use controls comments only on those comprehensive efforts directly affecting the coastal zone or indirectly affecting it through all-inclusive land manage regulations. This narrow discussion should not indicate to the reader that specific land use proposals have not been introduce for impact on other physiographic regions.
A Study Of The Dickey-Lincoln Hydroelectric Project And Its Impact On The Resources Of The Upper Saint John River Valley, Rosemary M. Manning, Sierra Club, New England Chapter
A Study Of The Dickey-Lincoln Hydroelectric Project And Its Impact On The Resources Of The Upper Saint John River Valley, Rosemary M. Manning, Sierra Club, New England Chapter
Dickey-Lincoln School Lakes Project
This report was under-taken primarily to evaluate the impact that the construction of the Dickey-Lincoln project would have upon the resources of the Upper St. John River, and to examine the assertion that the Dickey-Lincoln project constitutes a wise use of the public's environmental and economic resources. Since the case that has been made for the construction of the Dickey-Lincoln project rest primarily on the justification of the project in economic terms, this aspect of the project proposal will be intensively explored.
Changes In Polysomes Of Black Locust Seedlings During Dehydration-Rehydration Cycles, James R. Brandle, P.D. Schnare, T.M. Hinckley, G.N. Brown
Changes In Polysomes Of Black Locust Seedlings During Dehydration-Rehydration Cycles, James R. Brandle, P.D. Schnare, T.M. Hinckley, G.N. Brown
School of Natural Resources: Faculty Publications
No abstract provided.
The Soil Conservation Service : Its Basis Of Co-Operation With Landowners, G W. Spencer, J. E. Watson
The Soil Conservation Service : Its Basis Of Co-Operation With Landowners, G W. Spencer, J. E. Watson
Journal of the Department of Agriculture, Western Australia, Series 4
The Soil Conservation Act of 1945 set up within the Department of Agriculture a Soil Conservation Service under the control of a Commissioner of Soil Conservation.
The Service aims to promote types of land use which will conserve the soil and prevent or overcome soil erosion. It also aims to educate landholders and the public generally in the aims and practice of soil conservation.
This article relates mainly to farm land activities, and in particular the co-operation of the Service with individual primary producer landholders for the prevention and control of erosion on their land.
Growth Rate And Nesting Aspects For The Glossy Ibis In Virginia, 1972, John William Williams
Growth Rate And Nesting Aspects For The Glossy Ibis In Virginia, 1972, John William Williams
Dissertations, Theses, and Masters Projects
No abstract provided.
Model Legislation For The Administration Of Subaqueous Hard Mineral Resources Within Virginia Waters, William Jeffery Wardrop
Model Legislation For The Administration Of Subaqueous Hard Mineral Resources Within Virginia Waters, William Jeffery Wardrop
Dissertations, Theses, and Masters Projects
No abstract provided.
Marine And Estuarine Sanctuaries - Proceedings, National Workshop On Sanctuaries (Washington, D.C.)
Marine And Estuarine Sanctuaries - Proceedings, National Workshop On Sanctuaries (Washington, D.C.)
Reports
No abstract provided.
Oyster Spatfall On Shellstrings In Virginia Rivers: 1972 Annual Summary, Virginia Institute Of Marine Science
Oyster Spatfall On Shellstrings In Virginia Rivers: 1972 Annual Summary, Virginia Institute Of Marine Science
Reports
Oyster setting in Virginia river systems dipped to the lowest levels on record during 1972, according to scientists at the Virginia Institute of Marine Science who regularly monitor oyster grounds for set. A heavy set occurred on the seaside of Virginia's Eastern Shore and limited setting was observed in tributary rivers of the Mobjack Bay, but elsewhere the number of oysters setting on shellstrings and on the bottom in lower Chesapeake Bay in 1972 was far lower than for the previous year, and the lowest overall set ever recorded.
Oil Pollution And The Coastal State, J. T. O'Brien
Oil Pollution And The Coastal State, J. T. O'Brien
Marine Affairs Theses and Major Papers
It will be the purpose of this paper to pose and answer this question...How has the legal competence of a coastal state been strengthened with respect to that state's ability to prevent marine oil pollution? The question by implication presupposes that a certain change in legal competence is in fact occurring. The legal and historical baseline from which to gauge this gradual change will be established by reviewing past milestones in oil pollution law. A closer examination will then be made of recent evolutionary changes in both international and national oil pollution law subsequent to the Torrey Canyon Disaster of …
External States And The Indian Ocean: The Potential For Confrontation, James P. Cartwright
External States And The Indian Ocean: The Potential For Confrontation, James P. Cartwright
Marine Affairs Theses and Major Papers
A study of the common interests of internal and external states in the Indian Ocean and identification of the methods, and their potential for confrontation, employed by external powers in pursuit of their interests. The historical interests of external powers in the Indian Ocean are depicted. Common interests, which have commanded the attention of internal states and external powers during recent years, are identified. The Indian Ocean is divided into five regions, each region characterized by the aforementioned common interests. The assets, mutual relations and interests of the littoral states comprising each region are described. The interests and methods of …
Digital Video Display System Using Cathode-Ray Tube, George M. Low, Arthur I. Zygielbaum, Warren L. Martin, Alexander Engel
Digital Video Display System Using Cathode-Ray Tube, George M. Low, Arthur I. Zygielbaum, Warren L. Martin, Alexander Engel
School of Natural Resources: Faculty Publications
A digital video display system (DWDS) is disclosed for display of image, alphanumeric and other data on a cathode-ray tube (CRT) with sequential raster scan and two, four or eight gray shades. The DVDS includes a central processing unit for ac tivating the system, selecting the X (horizontal axis) and Z (in tensity modulation) modes, and designating the starting loca tion of two successive rasters of data from a memory accessed by a data multiplexer subsystem (DMS). At the end of each raster, the DMS interrupts the computer for a new starting lo cation of a raster of data to …
Communications Link For Computers, Thomas O. Paine, Arthur I. Zygielbaum, James W. Layland, Warren L. Martin
Communications Link For Computers, Thomas O. Paine, Arthur I. Zygielbaum, James W. Layland, Warren L. Martin
School of Natural Resources: Faculty Publications
A system is disclosed for a computer to communicate with a selected one of a plurality of other computers through two identical communications links associated with the communicating computers. A single channel connects the two links which operate at a clock rate independent of the computers. Binary digits and clock pulses are combined and converted into a three-level signal for serial transmission over the single channel. Both control messages and data words may be transmitted. Each message and word transmitted is checked for error by the receiving link before it is accepted and the receiving computer is interrupted. If error …
Simultaneous Determination Of Short-Period Photosynthesis And Evapotranspiration (Horticulture And Forestry Progress Report No. 91), Norman J. Rosenberg
Simultaneous Determination Of Short-Period Photosynthesis And Evapotranspiration (Horticulture And Forestry Progress Report No. 91), Norman J. Rosenberg
School of Natural Resources: Faculty Publications
No abstract provided.
Agriculture And Pollution In Western Australia. Part 2. Pollution Problems In W.A, C V. Malcolm
Agriculture And Pollution In Western Australia. Part 2. Pollution Problems In W.A, C V. Malcolm
Journal of the Department of Agriculture, Western Australia, Series 4
In Part I pollution was defined as a reduction in the usefulness of a resource and its significance in relation to resource fragility was discussed. Pollution problems in Western Australia are here considered in broad geographical regions with further subdivision into pollution types.
A Report On The Condition Of The Gascoyne Catchment, D G. Wilcox, E A. Mckinnon
A Report On The Condition Of The Gascoyne Catchment, D G. Wilcox, E A. Mckinnon
Resource management technical reports
Severe flooding in Carnarvon followed heavy rains on the Gascoyne Catchment in February 1961. The flooding and erosion were extensive enough to suggest that run-off from the catchment was excessive. Lightfoot (1961)* reported that excess run-off was due to degradation of the catchment area. This report will describe the catchment area in terms of the degradation of its rangeland and its susceptibility to erosion.
Special Purpose Areas In Virginia's Coastal Zone, J. B. Pleasants
Special Purpose Areas In Virginia's Coastal Zone, J. B. Pleasants
Reports
The Virginia Institute of Marine Science is charged with the responsibility of advising state management agencies on matters relating to the environments and resources of the coastal zone of Virginia. Under this broad requirement, we have been specifically assigned the task of recommending an ocean-dumping policy for the Commonwealth. This paper, a survey of specially designated areas in coastal waters of the state, is designed to provide some of the background material required in the development of such a policy.
Response Of Fraxinus Pennsylvanica M. Provenances To Daylength And Temperature, Cheng-Chun Ying
Response Of Fraxinus Pennsylvanica M. Provenances To Daylength And Temperature, Cheng-Chun Ying
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency
Report On Water Pollution Problems In Las Vegas Wash And Las Vegas Bay, Environmental Protection Agency
Publications (WR)
This report was prepared by the Federal Water- Quality Administration, Pacific Southwest Region, now the Environmental Protection Agency (EPA), Region IX, at the request of the State of Nevada, Department of Health, Welfare, and rehabilitation. In a letter, dated December 5, 1969, this agency asked for technical assistance, as authorized by the Federal Water Pollution Control Act, in developing discharge standards appropriate for Las Vegas Bay, Lake Mead, and the Lower Colorado River. The subsequent study was performed by EPA from January through August, 1970. The establishment of Nevada State Water Quality Standards for these waters will enable responsible officials …
Measurement Of Currents In Lake Mead With The Deep Water Isotopic Current Analyzer (Dwica), J. J. Sartoris, D. A. Hoffman, Bureau Of Reclamation
Measurement Of Currents In Lake Mead With The Deep Water Isotopic Current Analyzer (Dwica), J. J. Sartoris, D. A. Hoffman, Bureau Of Reclamation
Publications (WR)
In Nov 1967, a Deep Water Isotopic Current Analyzer (DWICA) was used to study current patterns in the Boulder Basin of Lake Mead to determine if low-quality water from Las Vegas Bay might enter the Southern Nevada Water Project intake on Saddle Island. Secondary objectives were to study the general current patterns in Boulder Basin and the effect of power discharges at Hoover Dam on these currents. Results of current measurements at 3 stations in Boulder Basin are given. Observations indicate a definite possibility that low-quality water from Las Vegas Bay might enter the water intake on Saddle Island. Current …
A Study Of The Limnetic Zooplankton Of Five Flood Control Reservoirs, Glen R. Helzer
A Study Of The Limnetic Zooplankton Of Five Flood Control Reservoirs, Glen R. Helzer
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Numerical Computer Perpheral Interactive Device With Manual Controls, James C. Fletcher, Arthur I. Zygielbaum, Stanley S. Brokl
Numerical Computer Perpheral Interactive Device With Manual Controls, James C. Fletcher, Arthur I. Zygielbaum, Stanley S. Brokl
School of Natural Resources: Faculty Publications
A computer peripheral device is disclosed which in cludes a joystick whose displacement from a center position along two axes X and Y in either a plus (+) or a minus (-) direction is sensed. The displacement magnitude in either direction controls the rate of clock pulses provided by a variable frequency clock. The clock pulses from the two clocks are accumulated in two separate counters, whose contents are dis played. The contents of the counters are suppliable to a computer to update the contents of specific cells which define the position of a cursor on a display which is …
Irrigation In South-Western Australia, K S. Cole
Irrigation In South-Western Australia, K S. Cole
Journal of the Department of Agriculture, Western Australia, Series 4
THE pattern of irrigation in South-Western Australia is constantly changing, At present, the main increase is in the private sector.
In the past century, there has been a see-saw effect from private to Government to private schemes.
Micronutrients And Biological Patterns In Lake Mead, Hasan K. Qashu, Lorne G. Everett, J. S. Carlson, Bureau Of Reclamation
Micronutrients And Biological Patterns In Lake Mead, Hasan K. Qashu, Lorne G. Everett, J. S. Carlson, Bureau Of Reclamation
Publications (WR)
Progressive increases in concentration of dissolved solids in the Colorado River water from Lake Powell to Imperial Dam seem to alter plankton dynamics and biological productivity of the river. Also, changes in biological productivity and micronutrients concentrations occur within the same reservoir. Development of a digital simulation model to predict micronutrients concentrations and biological productivity is necessary for diagnosing changes in plankton population and effluent-carrying capacity of the system.
The objectives of the study are: (1) to determine trace metal balance at different locations in Lake Mead, (2) to measure biological productivity and conduct plankton population counts at each sampling …
The Effect Of Las Vegas Wash Effluent Upon The Water Quality In Lake Mead, D. A. Hoffman, P. R. Tramutt, F. C. Heller, Bureau Of Reclamation
The Effect Of Las Vegas Wash Effluent Upon The Water Quality In Lake Mead, D. A. Hoffman, P. R. Tramutt, F. C. Heller, Bureau Of Reclamation
Publications (WR)
This study developed from observations made during an earlier study on Lake Mead which was reported in CHE-70, Water Quality Study of Lake Mead. Results from that study indicated that poor-quality water was flowing into the Las Vegas Bay reach of Boulder Basin, Lake Mead. Also reports of deteriorating water quality, resulting in taste and odors in domestic water supplies taken from Boulder Basin as well as a reduction in the attractiveness of Las Vegas Bay for recreational uses caused by aquatic plants and algae blooms, indicated a need for a concentrated study concerning the effects of flows from Las …
Population Dynamics Of Ospreys In Tidewater Virginia, Robert Senior Kennedy
Population Dynamics Of Ospreys In Tidewater Virginia, Robert Senior Kennedy
Dissertations, Theses, and Masters Projects
No abstract provided.
A Study Of The Exotic Game Bird Introduction Program In The Sandy Point Area Of Virginia 1970-1971, Hans Wachtmeister
A Study Of The Exotic Game Bird Introduction Program In The Sandy Point Area Of Virginia 1970-1971, Hans Wachtmeister
Dissertations, Theses, and Masters Projects
No abstract provided.
Catfish Management In The James River, Virginia, James A. Lanier
Catfish Management In The James River, Virginia, James A. Lanier
Dissertations, Theses, and Masters Projects
No abstract provided.
The Environmental, Resource-Use And Management Needs Of The Coast Zone, A Compendium, William J. Hargis Jr., Beverly L. Laird
The Environmental, Resource-Use And Management Needs Of The Coast Zone, A Compendium, William J. Hargis Jr., Beverly L. Laird
Reports
As part of art extensive effort to develop a better understanding and evaluation of the problems imposed upon the Chesapeake Bay System by the activities of man and the management and informational needs related to their solution, we decided to examine a number of documents of ranging authorship and origin. The reports, papers, and manuscripts, comprising the resource materials utilized, range from the massive study entitled National Estuary Study -- recently completed by the United States Fish and Wildlife Service of the U. S. Department of the Interior, to internal study manuscripts of the Institute, itself. Included were studies. aimed …
Oyster Spatfall On Shellstrings In Virginia Rivers: 1970 Annual Summary, Dexter S. Haven
Oyster Spatfall On Shellstrings In Virginia Rivers: 1970 Annual Summary, Dexter S. Haven
Reports
The Applied Biology Department in the VIMS Division of Applied Marine Science and Ocean Engineering conducts. weekly surveys of oyster "setting" in Virginia rivers from the end of May through early October each year. Starting at the mouth of each river and proceeding upstream to the limits of oyster setting, the collecting areas a.re established on public and private beds. Spat counts are obtained from oyster shells strung on wire and suspended from stakes. The number of spat which set in one week on the smooth side of ea.ch shell on the string are tabulated.
Ecological Planning Workshop Poster April, 1970, Ian Mcharg, Risd Archives
Ecological Planning Workshop Poster April, 1970, Ian Mcharg, Risd Archives
Ecology and Environment
Ecological Planning Workshop Poster by Ian McHarg. April 24, 1970, RISD Auditorium.