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Articles 421 - 443 of 443
Full-Text Articles in Physical Sciences and Mathematics
Microlevel Climate Change Due To Changes In Surface Features In The Ganges Delta, M. M. Adel
Microlevel Climate Change Due To Changes In Surface Features In The Ganges Delta, M. M. Adel
Journal of the Arkansas Academy of Science
The Ganges had been the world's 8th largest river in terms of the volume of water discharge of 490 km3/yr to the ocean 4 prior to 1975. Since that time, over a period of two decades, India has reduced the Ganges discharge through Bangladesh to 40% from its original annual average discharge of 1,932+7-223 m3 /s by diverting water for irrigation in her upper states. The , resulting consequences have been disastrous due to the depletion of the surface water resources. One of the devastating consequences has been the generation of extreme climate. The summertime maximum temperature has risen to …
User-Responsivity And Environment-Sensitivity Consideration For State-Funded Housing In Alain City, Nassra Saif Al Daheri
User-Responsivity And Environment-Sensitivity Consideration For State-Funded Housing In Alain City, Nassra Saif Al Daheri
Theses
Massive housing projects have shown that prospective users are rarely given the opportunity to participate in the design decisions. Subsequently, such schemes commonly fail to accommodate all their needs. In the Emirate of Abu Dhabi, the housing projects that aim at resettling of Bedouin into newly developed urban communities are state-funded. Many of these houses that were built in the late seventies and early eighties were transferred back to the state (in a very bad condition due to the users random modifications and additions) in exchange of newer better houses. The lack of an adaptive design concept that can accommodate …
Effect Of The Environmental Parameters On The Distribution Of Foraminifera In The Coastal Area Of Ras Al Khaimah, U.A.E., Naama Obaid Saif Al-Kaabi
Effect Of The Environmental Parameters On The Distribution Of Foraminifera In The Coastal Area Of Ras Al Khaimah, U.A.E., Naama Obaid Saif Al-Kaabi
Theses
Twenty samples of sea water and twenty samples of sediment were collected from the off shore area of Ras AI-Khaimah to find out the relationships between environmental parameters, abundance of foraminifera, and ratio of living to dead foraminifera.
Analysis of sea water for the environmental parameters includs, temperature, salinity and nutrient salts (nitrate, nitrite, silicate, phosphate and amonia). Organic mattar, and total carbonate were measured in the bottom sediments. Grain size analysis of the bottom sediments was done using seiving method. The foraminiferal species were picked, counted and photographed using the SEM. The ratio of dead to living forams was …
Geology Of Rock Creek Station State Historical Park, Robert F. Diffendal Jr.
Geology Of Rock Creek Station State Historical Park, Robert F. Diffendal Jr.
School of Natural Resources: Faculty Publications
Contents
Location and Facilities
Geology of the Park
Valley Floor of Rock Creek
While You Are in the Area
The Crest, Winter 1999, Virginia Institute Of Marine Science
The Crest, Winter 1999, Virginia Institute Of Marine Science
Reports
Table of Contents:
- Experimental Fishery on Georges Bank Holds Promise for the Scallop Industry
- New VIMS Center Boosts Aquafarming
- Invader Threatens Stressed Ecosystem (Rapa Whelk)
- Microscopic Phytoplankton Live Large
- Reality By the Numbers (Computer Modeling)
- Tautog Research
- Latest Returns From the Game Fish Tagging Program
- Educational Landscape Center (VIMS Teaching Marsh)
- Responding to the Chesapeake Executive Council Directive for Wetlands Protection and Restoration Goals
- Dangers to Blue Crabs Accelerating
Virginia Game Fish Tagging Program Annual Report 1998, John A. Lucy, C.M. Bain, M. D. Arendt
Virginia Game Fish Tagging Program Annual Report 1998, John A. Lucy, C.M. Bain, M. D. Arendt
Reports
The Virginia Game Fish Tagging Program (VGFTP), a cooperative project of the Virginia Marine Resources Commission and the Virginia Institute of Marine Science (VIMS), set records for fish tagged and fish recaptured during 1998, its fourth year of operation.
Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And The Coastal Bays - 1998, R J. Orth, Judith F. Nowak, David J. Wilcox, Jennifer R. Whiting, Leah S. Nagey
Distribution Of Submerged Aquatic Vegetation In The Chesapeake Bay And Tributaries And The Coastal Bays - 1998, R J. Orth, Judith F. Nowak, David J. Wilcox, Jennifer R. Whiting, Leah S. Nagey
Reports
No abstract provided.
Oyster Reef Habitat Restoration : A Synopsis And Synthesis Of Approaches; Proceedings From The Symposium, Williamsburg, Virginia, April 1995, Mark Luckenbach, Roger L. Mann, James A. Wesson
Oyster Reef Habitat Restoration : A Synopsis And Synthesis Of Approaches; Proceedings From The Symposium, Williamsburg, Virginia, April 1995, Mark Luckenbach, Roger L. Mann, James A. Wesson
Reports
This volume has its origin in a symposium held in Williamsburg, VA in April 1995, though most of the chapters have been significantly revised in the interim. The primary purpose of the symposium was to bring together state fisheries managers involved in fisheries-directed oyster enhancement and research scientists to refine approaches for enhancing oyster populations and to better develop the rationale for restoring reef habitats. We could hardly have anticipated the degree to which this been successful. In the interim between the symposium and the publication of this volume the notion that oyster reefs are valuable habitats, both for oysters …
ข่าวสิ่งแวดล้อม : ตุลาคม-ธันวาคม 2541
Social And Economic Data For Regional And Natural Resource Management In Western Australia's South West Catchment : Results Of The 2006 Landholder Survey, Department Of Agriculture And Food, Western Australia, South West Catchments Council (W.A.), Michael Hanslip, Australia. Bureau Of Rural Sciences.
Social And Economic Data For Regional And Natural Resource Management In Western Australia's South West Catchment : Results Of The 2006 Landholder Survey, Department Of Agriculture And Food, Western Australia, South West Catchments Council (W.A.), Michael Hanslip, Australia. Bureau Of Rural Sciences.
All other publications
This report presents a summary of the key findings from a mailed survey to 2,000 landholders in the South West Region of Western Australia in 2006. The survey gathered information on the key social and economic factors affecting landholder decision-making about the adoption of practices expected to improve the management of natural resources in the region. The response rate for the survey was 69.4%.
The South West Catchment Council, Western Australian Department of Agriculture and Food and the Bureau of Rural Sciences were key project partners. Funding was from a mix of national, state and regional programmes, including the Natural …
Characterization And Improvement Of Eos Land Products Using Measurements At Ameriflux Grassland And Wheat Sites In The Arm/Cart Region: Research Annual Performance Report For Period March 1, 1999- February 29, 2000., E. A. Walter-Shea, S. B. Verma
Characterization And Improvement Of Eos Land Products Using Measurements At Ameriflux Grassland And Wheat Sites In The Arm/Cart Region: Research Annual Performance Report For Period March 1, 1999- February 29, 2000., E. A. Walter-Shea, S. B. Verma
School of Natural Resources: Documents and Reviews
No abstract provided.
Molecular Organic Geochemistry Of New York Bight Sediments. Sources Of Biogenic Organic Matter And Polycyclic Aromatic Hydrocarbons, Michael A. Kruge
Molecular Organic Geochemistry Of New York Bight Sediments. Sources Of Biogenic Organic Matter And Polycyclic Aromatic Hydrocarbons, Michael A. Kruge
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
As part of a multidisciplinary evaluation of the environmental impact of waste disposal in the New York Bight, a preliminary effort was undertaken to assess the molecular geochemistry of its sedimentary organic matter (OM). For this initial phase of the study, samples were taken from two New York Bight cores collected outside the area of known dumping [in Sandy Hook Bay, NJ], to establish the environmental context for future work on sediments from within dumpsite zones. The method employed was flash pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), which is an organic microanalysis technique suitable for solid samples, in this case dried, raw …
Issues Surrounding The Valuation Of A Park: Applying Commission For National Parks And Protected Area Guidelines To Awenda Provincial Park, Ontario, Tatania E. Stroud
Issues Surrounding The Valuation Of A Park: Applying Commission For National Parks And Protected Area Guidelines To Awenda Provincial Park, Ontario, Tatania E. Stroud
Theses and Dissertations (Comprehensive)
The goals of this project are to apply and assess the applicability of the World Conservation Union (1 UCN) Commission for National Parks and Protected Area Guidelines for Economic Assessment of Protected Areas to Awenda Provincial Park, and to compare the results with existing studies on valuing protected areas. This project explores the value of tourism and recreation at Awenda Provincial Park, and the expression of the value of natural areas in economic terms through the application of the CNPPA Guidelines. This project is an initial inquiry into the applicability of the CNPPA guidelines, and is based on data from …
Regional Ecology Of The St. Elias Mountain Parks: A Synthesis With Management Implications (British Columbia, Yukon, Alaska), Ryan Kenneth Danby
Regional Ecology Of The St. Elias Mountain Parks: A Synthesis With Management Implications (British Columbia, Yukon, Alaska), Ryan Kenneth Danby
Theses and Dissertations (Comprehensive)
The St. Elias region of North America occupies portions of British Columbia, Alaska, and the Yukon Territory and comprises a network of public lands and protected areas managed by a variety of agencies. This thesis characterizes and analyzes the broad- scale, or regional, ecology of these lands and provides an assessment of the implications this has for ecosystem-based management—particularly as it relates to intergovernmental cooperation. A multi-stage, map-based, multidisciplinary process is used to synthesize information on the region’s physical, biological, and institutional environments. The fields of conservation biology and landscape ecology provide theoretical foundations for analysis. The ecological synthesis and …
Natural Disturbance And Land Cover Patterns In A Mountainous, Sub-Arctic Environment (Yukon), A. Bruce Wurtele
Natural Disturbance And Land Cover Patterns In A Mountainous, Sub-Arctic Environment (Yukon), A. Bruce Wurtele
Theses and Dissertations (Comprehensive)
The dynamics of landscape pattern and disturbance were studied in the ‘green belt’ area of Kluane National Park, Yukon. White spruce montane forests and various sub-alpine and alpine vegetation communities dominate the study area, adjoining the Kluane Ranges of the St. Elias Mountains. Combining theory on landscape structure and function, the relationships of disturbance regimes and landscape pattern are examined. The landscape mosaic was mapped from classification of multispectral Landsat Thematic Mapper imagery. Landscape pattern was measured using quantitative indices of patch, class, and landscape attributes. Natural disturbance regimes, important to land cover development in the region, include fire, insect …
Assessment Of Capacity For Water Resource Management: A Case Study Of A Small Watershed In Nepal, Bhanu Raja Neupane
Assessment Of Capacity For Water Resource Management: A Case Study Of A Small Watershed In Nepal, Bhanu Raja Neupane
Theses and Dissertations (Comprehensive)
Use of local knowledge, increased public participation, and capacity building – singly or in combination – are identified as major strategies to enhance sustainable and integrated management of water. Recently, capacity assessment has been recognized as one of the most effective means to operationalize these strategies in the context of water resource management However, the contemporary literature shows local-level capacity assessment as one of the least explored areas. The literature shows that capacity assessment still lacks conceptual clarity and an implementable framework. Efforts are being made in this direction, but very few focus below the national level. Many such efforts …
Evaluating Oral Histories For Restoration Ecology, Margaret Robertson
Evaluating Oral Histories For Restoration Ecology, Margaret Robertson
Theses : Honours
Significant ecological restoration is required in the agricultural regions of south-western Australia. Environmental history, including local knowledge based on long-term observation of the biophysical environment, can help guide this process. Scientists already use local anecdotal information because other information sources are absent or too recent, yet they are often skeptical of its veracity. This study focused on whether environmental oral histories can be evaluated for factual accuracy and their capacity to be useful in the restoration process. Some of the complexities associated with linking environmental histories with restoration ecology, and the role played by oral histories in establishing the link …
The Western Australian Environmental Protection Authority (Epa) : Its Structure, Functions And Performance 1971-1996, Vincent Cusack
The Western Australian Environmental Protection Authority (Epa) : Its Structure, Functions And Performance 1971-1996, Vincent Cusack
Theses : Honours
This study examines the effectiveness of the Western Australian Environmental Protection Authority (EPA), from its inception in 1971 to 1996. While environmental concerns have risen considerably in recent times, environmental awareness can be traced back to early historical beginnings. Yet, despite this initial awareness it took some time before environmental problems permeated the public consciousness, to occupy the political agenda. However, in the early 1970s, governments throughout the First World responded to research and heightened awareness of environmental concerns, with specific legislation to protect the environment. A common feature of the legislation, was the provision for a main administrative body …
Analytical Modeling Of Cake Filtration, Scott A. Wells
Analytical Modeling Of Cake Filtration, Scott A. Wells
Civil and Environmental Engineering Faculty Publications and Presentations
The specific resistance model of cake filtration is based on the assumption that the average cake resistance is constant over time. This implies also that the spatially average values of porosity and pressure differential are also constant over time since specific resistance is a function of both parameters.
An analytical cake filtration model based on Tiller (1975) was derived using constitutive properties of kaolin suspensions in distilled water. Constitutive properties were determined by experiments performed using high-energy X-rays and porewater pressure probes to determine the spatial and temporal distributions of porosity and porewater pressure. Using these constitutive properties, predictions were …
Assessment Of The Availability And Exploitation Of Hydric Resources In The Choquenaira Community, Luis Lizardo Iturry Urquizo
Assessment Of The Availability And Exploitation Of Hydric Resources In The Choquenaira Community, Luis Lizardo Iturry Urquizo
Theses and Dissertations
The precipitation data of the El Alto, Tambillo and Comanche stations are homogenous and consistent. The meteorological data from Irpa Chico, Collana and Viacha are consistent, but heterogeneous. The monthly precipitation in Viacha in December, January, March and April are better examples of a normal distribution in comparison to the months of October, November and February. The average annual precipitation in Viacha, in a thirty-four year time period, is 559 mm. Some 76% of this precipitation occurs in November to March. The minimum precipitation in Viacha, with an 80% probability of absence for the vegetative period, from October to April …
Coastal Land And Groundwater For Horticulture From Gingin To Augusta, Dennis Van Gool, Werner Runge
Coastal Land And Groundwater For Horticulture From Gingin To Augusta, Dennis Van Gool, Werner Runge
Resource management technical reports
Due to a variety of factors, including infrastructure needs, labour requirements and transport costs, horticulture is normally located near major urban centres. This study focuses on the coastal plain region from Gingin to Augusta. This region accomodates over 80% of Western Australia's population and includes the States major urban centres. This region also accounts for over half the State's horticultural production with a gross value of production of $244 million.
Avon And Upper Hotham Region Natural Resource Atlas, Sarah Weaving, Jason Batory
Avon And Upper Hotham Region Natural Resource Atlas, Sarah Weaving, Jason Batory
All other publications
The Avon and Upper Hotham Region Atlas is one of a series of Natural Resource Atlases covering the agricultural region of Western Australia. The purpose of the Atlas is to provide data for local people who manage or have an interest in natural resources. This includes the members of Land Conservation District Committees (LCDC), catchment groups, local government, non-government organisations, conservation groups, schools and libraries.
The aim of this publication is to bring together land and natural resource information from a number of sources and present it in a clear and accessible way. The data covers a number of topics …
A Synthesis Of Lead Isotopes In Two Millennia Of European Air, Charles Dunlap, Eiliv Steinnes, A. Russell Flegal
A Synthesis Of Lead Isotopes In Two Millennia Of European Air, Charles Dunlap, Eiliv Steinnes, A. Russell Flegal
Charles Dunlap
Four airborne particulate records from ombrotrophic peat bogs in southern Norway, extending back 300 years, have been measured for chronology, lead concentration, and lead isotope composition. Since southern Norway receives an airborne lead signal that accumulates emissions from the European continent, the trend in the four bog records can be used to correlate previously reported measurements from France, Switzerland, England, and Greenland that cover different ranges of time. When these are compiled, the integrated European record that emerges spans the last 2300 years of human influence on lead in the air over Europe and suggests human control of lead in …