Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Environmental Sciences

Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 5431 - 5460 of 5811

Full-Text Articles in Entire DC Network

Water Current, Volume 22, April 1990 Apr 1990

Water Current, Volume 22, April 1990

Water Current Newsletter

Environmental Studies Part of Geography Department, Jeanne Kay
Twentieth Annual Earth Day Observed April 22
NATO Advanced Research Workshop to be Held at UNL in September
First Irrigation Day Held February 22
Just Give Us a Call for Water Seminar Proceedings
Festival Highlights Importance of Nebraska's Groundwater
Prevention Key to Pollution
Assessment Atlas Now Available
Water Conference Council Awards
Agency Cooperation Urged at Water Conference
90s Exciting Times in Water Resources
Nebraska Counties Included in High Plains Irrigation Research
Mid-Nebraska Water Quality Demo Project Combines State and Federal Agencies to Research Irrigation Efficiency
Irrigation Bolsters Nebraska's Economy
First Nebraska Instream …


Edward Miles's Review Of Hanns J. Buchholz's Law Of The Sea Zones In The Pacific Ocean, Edward Miles Mar 1990

Edward Miles's Review Of Hanns J. Buchholz's Law Of The Sea Zones In The Pacific Ocean, Edward Miles

Pacific Studies

No abstract provided.


Using Water Naturally, Holmes Rolston, Iii, University Of Colorado Boulder. Natural Resources Law Center Jan 1990

Using Water Naturally, Holmes Rolston, Iii, University Of Colorado Boulder. Natural Resources Law Center

Books, Reports, and Studies

[ii], 26 p. ; 28 cm


Should The Ports Of New Orleans And Mobile Be United Under A Single Port Authority, Charles E. Dorsett Jan 1990

Should The Ports Of New Orleans And Mobile Be United Under A Single Port Authority, Charles E. Dorsett

Marine Affairs Theses and Major Papers

United States ports along the coast of the Gulf of Mexico are engaged in fierce competition among themselves to attract existing and future trade. This competition has served to force modernization and expansion of facilities in all the ports. The effort is running into the billions of dollars and there are concerns that there is too much duplication of costly facilities. The Port of New Orleans benefits from its location at the southern terminus of the Mississippi River System. Until five years ago it was the sole significant transhipment node between the nation's midsection and its customers and suppliers. In …


The Effect Of Industrial Development On The Sediment Contamination Of Apponaug Cove, A Historical Analysis, Marina Havan-Orumieh Jan 1990

The Effect Of Industrial Development On The Sediment Contamination Of Apponaug Cove, A Historical Analysis, Marina Havan-Orumieh

Marine Affairs Theses and Major Papers

Sediment cores have long been used to formulate the chronology of environmental contamination. This paper will investigate the utility of sediment cores in determining the chronology of trace metal contamination in Apponaug Cove, Rhode Island. A meter-long sediment core taken from the Cove was analyzed for chromium, copper, lead, zinc and nickel as well as organic pollutants coprostanol, polyaromatic hydrocarbons, benzotriazole and clorobenzotriazole. The core represents a close to 200 year record of sediments in Apponaug Cove. The cultural/economic changes in the Watershed in addition to environmental laws composed in the State and Federal levels which may have correlated with …


Pflanzengesellchaften Der Mongolei, Werner Hilbig Jan 1990

Pflanzengesellchaften Der Mongolei, Werner Hilbig

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

First paragraphs of the introduction:

In Fortführung der Forschungsreisen der russischen Floristen und Pflanzengeouraphen im vorigen und Anfang dieses Jahrhunderts wurden erste Expeditionen zur systematischen Erforschung der Naturressourcen der Mongolei in den 20er und 30er Jahren durchgeführt. Sie wurden von der Akademie der Wissenschaften der UdSSR und der Akademie der Wissenschaften der MVR (vorher Wissenschaftliches Komitee der MVR) organisiert. Auch die von der Geographischen GeselIschaft und der Akademie der Wissenschaften der UdSSR durchgeführten Expeditionen zur Erforschung der natürlichen Bedingungen und der Landwirtschaft in der Mongolei schufen Möglichkeiten zur Entwicklung der geobotanischen Forschungsrichtung (vgl. GUBANOV u. HILBIG 1989).

Als erste eigenständi"e …


Title Page, Verso Of The Title Page, And Contents For Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 8, Michael Stubbe Jan 1990

Title Page, Verso Of The Title Page, And Contents For Erforschung Biologischer Ressourcen Der Mongolischen Volksrepublik, Band 8, Michael Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Title page, verso of the title page, and contents of Erforschung biologischer Ressourcen der Mongolischen Volksrepublik, Band 8 (1990).


Mining In Maine : Past, Present, And Future, Carolyn A. Lepage Jan 1990

Mining In Maine : Past, Present, And Future, Carolyn A. Lepage

Maine Collection

Mining in Maine : Past, Present, and Future

by Carolyn A. Lepage, Michael E. Foley, and Woodrow B. Thompson

Maine Geological Survey, Department of Conservation, Augusta, Me., 1990.

Contents: Introduction / The Early Years: Pre-Civil War / The Civil War to World War II / The War Years of the 1940's / The Postwar Years: 1940's to 1960 / The 1960's / The 1970's / Maine Mineral Resources Association / The 1980's / Current Mining and Exploration / Future Potential / Acknowledgments / References


Effects Of Lake Management On Chemical, Physical, And Phycological Characteristics Of A Hypereutrophic Reservoir, Kaye J. Surratt Jan 1990

Effects Of Lake Management On Chemical, Physical, And Phycological Characteristics Of A Hypereutrophic Reservoir, Kaye J. Surratt

Masters Theses

Lake Charleston is a 1.1 billion gallon capacity side channel reservoir which was constructed in 1982 as a public drinking water supply for the City of Charleston in Coles County, Illinois. Past studies of the lake indicated an increase in eutrophication and the capacity to support large algal populations. Recent lake management practices include copper sulfate applications as an algicide and aeration to reduce flavor and odor.

In order to assess present lake status and to evaluate the effectiveness of lake management practices, two lake sites were sampled on a weekly basis from May to October, 1989. Chemical, physical, and …


A Recycling Proposal For The Vashon Island School District, John Turner Green Jan 1990

A Recycling Proposal For The Vashon Island School District, John Turner Green

All Graduate Projects

The purpose of this study was to identify a process by which the Vashon Island School District could reduce its waste stream and involve and educate students in an environmental ethic that actively seeks to reduce and recycle wastes. A search of the general and educational literature was made. An extensive research of state and local agencies helped to identify appropriate goals and actions for the Vashon School District. The proposal calls for seven specific actions to be taken.


Water Current, Volume 22, January 1990 Jan 1990

Water Current, Volume 22, January 1990

Water Current Newsletter

Gold Accepts Position at Texas A&M University
Platte River Policy
Congresswoman Smith Receives Water Statesman of the Year Award
Risks Not Always Easy to Measure
One Word or Two?
First Northeast Nebraska Water Quality Day Attracts 250 Persons
Who Wil Get the Water?
Water Qualty Priority of Nebraska Water Conference Council
Water Quality Outlook for the 90s Topic for Conference
Forum Addresses State Water Issues


Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes Dec 1989

Reproductive Biology Of Pinus Sylvestris L.: Seed Yield, Flower Phenology, The Response Of Young Seedlings To Ga 4/7, And Developmental Anatomy, Teresa K. Boes

School of Natural Resources: Dissertations, Theses, and Student Research

No abstract provided.


Within The Hundredth Meridian: Western States And Their River Basins In A Time Of Transition, John M. Volkman, Kai N. Lee Jun 1989

Within The Hundredth Meridian: Western States And Their River Basins In A Time Of Transition, John M. Volkman, Kai N. Lee

Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)

29 pages.

Contains footnotes.


Allocating Groundwater Among Nations, States And Tribes, Ann Berkley Rodgers, Carolyn J. Abeita Jun 1989

Allocating Groundwater Among Nations, States And Tribes, Ann Berkley Rodgers, Carolyn J. Abeita

Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)

70 pages.


Arkansas River Controversy, David W. Robbins Jun 1989

Arkansas River Controversy, David W. Robbins

Boundaries and Water: Allocation and Use of a Shared Resource (Summer Conference, June 5-7)

14 pages.


Jim Bindon's Review Of Tsuguyoshi Suzuki And Ryutaro Ohtsuka's Human Ecology Of Health And Survival In Asia And The South Pacific, Jim Bindon Mar 1989

Jim Bindon's Review Of Tsuguyoshi Suzuki And Ryutaro Ohtsuka's Human Ecology Of Health And Survival In Asia And The South Pacific, Jim Bindon

Pacific Studies

No abstract provided.


Recent Geologic History Of Mud-Dominated Sediments In Hillsborough Bay, Florida - Phase I Report, Gregg R. Brooks, Larry J. Doyle Feb 1989

Recent Geologic History Of Mud-Dominated Sediments In Hillsborough Bay, Florida - Phase I Report, Gregg R. Brooks, Larry J. Doyle

Reports

The primary objective of this project, one phase of a potentially larger investigation on sediments of Hillsborough Bay, was to determine vertical distribution patterns of mud-dominated sediments. Vertical distribution patterns represent the recent geologic history of the study area. For this project the term 'recent geologic history' refers to the past several thousand years, or the period since being flooded by the Holocene rise of sea level.


Formulation Of A Management Scheme For The Swordfish Fishery Of The Eastern Caribbean, Harold F. Upton Jan 1989

Formulation Of A Management Scheme For The Swordfish Fishery Of The Eastern Caribbean, Harold F. Upton

Marine Affairs Theses and Major Papers

During the 1983 season, two U.S. longline vessels initiated the first attempts at the commercial exploitation of swordfish in the Eastern Caribbean. In 1986, the number of U.S. vessels participating in the fishery surpassed 40 with landings of nearly two million pounds per season. The sudden influx of participants and technology to the region has resulted in a variety of user conflicts and associated policy issues. Major areas of concern involve the conservation of a heavily exploited resource and the distribution of benefits which accrue from resource exploitation among the resource-adjacent island states and U.S. fishing operations. This study examines …


North Carolina Ports: A Search For Identity, Clifford S. Sharpe Jan 1989

North Carolina Ports: A Search For Identity, Clifford S. Sharpe

Marine Affairs Theses and Major Papers

North Carolina's development in colonial times and in the early stages of statehood was greatly affected by her coastline. An abundant coastline did not translate into an abundance of good ports, in fact, difficult coastal and inland navigation hampered early commercial development. North Carolina's barrier islands and numerous inlets served as a haven for pirates in colonial days, for privateers during the Revolution, and later defied the North's blockade during the Civil War. There were several attempts by individuals to encourage maritime trade in the late nineteenth and early twentieth century. Shortly after World War II the state mobilized to …


Geographical Constraints To Soviet Maritime Power, Brian Needham Jan 1989

Geographical Constraints To Soviet Maritime Power, Brian Needham

Marine Affairs Theses and Major Papers

The aim of this paper is to identify the geographical constraints to Soviet marine power, assess their impact and explore alternatives that may be considered to reduce their detrimental effects. The paper will provide a background by addressing the recent history, status and current missions of the Soviet Navy, which is the vehicle for maritime power. The nature of the geographical constraints will then be discussed before assessing individually the impacts on the four Soviet Fleets: Northern, Baltic, Black Sea, and Pacific. Finally, some alternatives will be explored to counter the vulnerability of maritime power to those geographic constraints. It …


Resources For Inventorying Plants In The Southeast Asian Tropics: Plans For The Future, J.S. Burley, P.F. Stevens, E.A. Wood Jan 1989

Resources For Inventorying Plants In The Southeast Asian Tropics: Plans For The Future, J.S. Burley, P.F. Stevens, E.A. Wood

Biology Department Faculty Works

We aimed to cover two issues in this workshop; the third arose during the course of the discussion: 1. The need for an increased rate of collecting in the Southeast Asian tropical area (‘Malesia’ for short) if taxonomic decisions in the ‘Flora Malesiana’ and other taxonomic projects are to be soundly based and, more generally, if there are to be materials adequate for the future needs of taxonomy. 2. The likelihood that any attempt to increase collecting, or even simply to continue collecting at the present rate, without paying adequate attention to the distribution, mounting, and preservation of the specimens …


Mineral Summaries Of Bureau Of Land Management Wilderness Study Areas In Utah, Intermountain Field Operations Center; U.S. Bureau Of Mines, Denver, Co, Central Mineral Resources; U.S. Geological Survey, Denver, Co Jan 1989

Mineral Summaries Of Bureau Of Land Management Wilderness Study Areas In Utah, Intermountain Field Operations Center; U.S. Bureau Of Mines, Denver, Co, Central Mineral Resources; U.S. Geological Survey, Denver, Co

Elusive Documents

No abstract provided.


Pflanzenarten Der Mvr Als Quelle Biologisch Aktiver Verbindungen, L. M. Belenovskaja, L. P. Marakova, T. P. Nadežina, G. A. Kuznecova, V. S. Sinickij Jan 1989

Pflanzenarten Der Mvr Als Quelle Biologisch Aktiver Verbindungen, L. M. Belenovskaja, L. P. Marakova, T. P. Nadežina, G. A. Kuznecova, V. S. Sinickij

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Es wurde der Gehalt an Flavonoiden und Kumarinen von 250 Pflanzenarten, die zu 38 Gattungen, 35 Familien der Flora der \ MVR gehören. untersucht. Bei 50 Arten der Familien Asteraceae, Fabaceae, Lamiaceae wurde ein beträchtlicher Gehalt an Flavoiden festgestellt. Kumarine sind für 60 Arten (17 Familien) nachgewiesen. Ausführlich wurde die Zusammensetzung der Flavonoidc für einzelne Arten der Familie Asteraceae und die der Kumarine für Arten der Familie .Apiaceae untersucht. Es wurden für die Gewinnung biologisch aktiver Flavonoide und Kumarine aussichtsreiche Pflanzenarten gefunden, die die Grundlage für die Herstellung originaler Arzneimittel von einem breiten Wirkungsspektrum bilden können.

Untersucht wurde auljerdem die …


Systematische Übersicht Der Gattung Artemisia L. In Der Mongolischen Volksrepublik. - Untergattung Dracunculus (Bess.) Peterm., T. G. Leonova Jan 1989

Systematische Übersicht Der Gattung Artemisia L. In Der Mongolischen Volksrepublik. - Untergattung Dracunculus (Bess.) Peterm., T. G. Leonova

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Zu den Beifufjarten der MVR zählen 65 Arten, darunter 5 endemische und 7 subelldemische. ::>ie Arten gehören zu 3 Untergattungen: Artemisia (39 Arten), Dracullculus (BESS.) PETERM. (19 Arten) und Seriphidium (BESS.) PETERM. (7 Arten).

Es wird auf die Unterscheidungsmerkmale von 19 Arten der Untergattung Dracunculus eingegangen, die besonders grolje Schwierigkeiten bei der Bestimmung bereiten. Es wird angenommen, dalj die Stammformen der Untergattung Dracunculus, sowie der ganzen Gattung Artemisia, die ausdauernden krautartigen Wald-und Wiesenpflanzen mit geschlitzten Blättern aus der Sektion Campestres KOROBKOV sind, von denen sowohl einjährige Arten und Halbsträucher der Sektion Campestres, als auch ausdauernde krautige Pflanzen mit ungeteilten …


Surface Sediments And Their Relationship To Water Quality In Hillsborough Bay, A Highly Impacted Subdivision Of Tampa Bay, Florida, J.O.R. Johansson, A.P. Squires Jan 1989

Surface Sediments And Their Relationship To Water Quality In Hillsborough Bay, A Highly Impacted Subdivision Of Tampa Bay, Florida, J.O.R. Johansson, A.P. Squires

Reports

This paper will summarize the composition of surface sediment and sediment oxygen demand rated in Hillsborough Bay. Also, a first attempt is made to relate the nutrients released from these sediments to the phytoplankton, the dominant primary producers of the bay.


Neue Literatur (Page 68)., Martin-Luther-Universität Jan 1989

Neue Literatur (Page 68)., Martin-Luther-Universität

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Neue Literatur listed on page 68 of Erforschung biologischer Ressourcen der Mongolischen Volsrepublik, Band 6 (1985/1986).

In der Zeitschrift Appl. Anim. Behav. Sci. 21 (1/2) erschienen 1988 folgende Beiträge.


Endemismus In Der Flora Der Mongolei, V. I. Grubov Jan 1989

Endemismus In Der Flora Der Mongolei, V. I. Grubov

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Im Grad des Endemismus spiegelt sich die Eigentümlichkeit und die Eigenart der Flora iedes Landes und in der Zusammensetzung der Endemiten das Alter dieser Flora sowie ihre verwandtschaftlichen Beziehungen und ihre Entstehung wider. Besonders anschaulich kommen die verwandtschaftlichen Beziehungen der Flora eines Landes zu den Floren der angrenzenden Territorien zum Vorschein, wenn man die Angaben analysiert die die Subendemiten betreffen.

1. Der Endemismus in der Flora der Mongolei ist nicht bedeutend. Nur 10.1 % (229 Arten) von der Gesamtartenzahl (2272) können als Endemiten betrachtet werden. Dabei machen die Endemiten im engeren Sinne nur 3,8 % (86 Arten) und die Subendemiten …


Faunistische Untersuchungen Und Erfahrungen In Der Ektoparasitenbekämpfung Bei Landwirtschaftlichen Nutztieren In Der Mongolischen Volksrepublik, Th. Hiepe, H. Splisteser, G. Ilchmann, Regine Ribbeck Jan 1989

Faunistische Untersuchungen Und Erfahrungen In Der Ektoparasitenbekämpfung Bei Landwirtschaftlichen Nutztieren In Der Mongolischen Volksrepublik, Th. Hiepe, H. Splisteser, G. Ilchmann, Regine Ribbeck

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Die bedeutsamen Ektoparasitosen der Nutztierbestände in der Mongolischen Volksrepublik - Hypodermose bei Rind und Yak, Räude bei Rind, Yak und Schaf, Östrose beim Schaf, Gasterophilose beim Pferd sowie Zeckenbefall und Vermipsyllose bei Rind, Yak, Schaf und Ziege werden an Hand eigener Untersuchungen hinsichtlich Erregerspektrum, Schadwirkung und Bekämpfung vorgestellt.

Животноводству мнР эктопаразиты приносят значительный ущерб. Экономические потери выражаютая в снижении производства шерсти, мяса и молока у пораженных животных, а также в повреждении кожевенного сырья. Кроме того, эктопереэиты играют роль как возбудители зоонозов. С 1970 г. по проекту из Г ДР и с участием специалистов из Г ДР производится плановая борьба с …


Dr. Zoltán Kaszab (1915-1986), István Matskási Jan 1989

Dr. Zoltán Kaszab (1915-1986), István Matskási

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Obituary of scientist Dr. Zoltán Kaszab (born 1915, died April 4, 1986).


Inhalt Of Erforschung Biologischer Ressourcen Der Mongolei Volksrepublik, Band 6 (1985/1986), Martin-Luther-Universität Jan 1989

Inhalt Of Erforschung Biologischer Ressourcen Der Mongolei Volksrepublik, Band 6 (1985/1986), Martin-Luther-Universität

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Table of contents of Erforschung biologischer Ressourcen der Mongolischen Volsrepublik, Band 6 (1985/1986).