We are improving our search experience. To check which content you have full access to, or for advanced search, go back to the old search.

Search

Please fill in this field.
Filters applied:

Search Results

Showing 161-174 of 174 results
  1. Water Pollution:Wastewater

    Techniques for withdrawing, supplying, and disposing of water were already a part of early civilizations. Yet technologies for treating water and...
    Ulrich Förstner in Integrated Pollution Control
    Chapter 1998
  2. Fundamentals

    The term, pollution control technology, combines manufacturing and using “material systems”1) with natural resource protection — this includes not...
    Ulrich Förstner in Integrated Pollution Control
    Chapter 1998
  3. A metabolism-based trophic index for comparing the ecological values of shallow-water sediment habitats

    We determined fluxes of oxygen and nutrients between water and sediments at 21 sites primarily in Virginia and North Carolina estuaries, over the...

    W. M. Rizzo, S. K. Dailey, ... R. L. Wetzel in Estuaries
    Article 01 June 1996
  4. The relationships among man’s activities in watersheds and estuaries: A model of runoff effects on patterns of estuarine community metabolism

    Activities of man in rivers and their watersheds have altered enormously the timing, magnitude, and nature of inputs of materials to estuaries....

    Charles S. Hopkinson, Joseph J. Vallino in Estuaries
    Article 01 December 1995
  5. Integrated Ecosystem Research in Northern Alaska, 1947–1994

    Current research on human impacts in tundra ecosystems and landscapes builds upon a rich history of basic ecological studies carried out in Alaska...
    Chapter 1996
  6. Functional Attributes of Angiosperm Hemiparasites and Their Hosts and Predictions of Possible Effects of Global Climate Change on Such Relationships

    The 3,000 or so species and almost 200 genera of parasitic angiosperms of the world flora collectively represent an extraordinarily broad assemblage...
    Chapter 1995
  7. Land-Water Interactions: The Influence of Terrestrial Diversity on Aquatic Ecosystems

    As ecologists, we have learned much about the effects of species diversity on the biological aspects of communities. In an effort to expand our...
    Chapter 1995
  8. Nutrition of Corals

    Above it was mentioned that most scleractinian corals and more than half of the taxa of octocorals inhabiting coral reefs have algal symbionts in...
    Yuri I. Sorokin in Coral Reef Ecology
    Chapter 1995
  9. Net system production in coastal waters as a function of eutrophication, seasonality and benthic macrofaunal abundance

    Net system production ranged from 13% to 29% of apparent system production in enclosures modelling coastal marine waters. Net production was measured...

    C. A. Oviatt, P. H. Doering, ... A. Zoppini in Estuaries
    Article 01 June 1993
  10. Evolution of Matter and Energy

    Maybe during our time, at the end of the twentieth century or at the beginning of the next century, the old dream of natural sciences will become...
    Chapter 1992
  11. Biogeochemical cycling constraints on stream ecosystem recovery

    In systems where production is limited by the availability of a nutrient, nutrient input to and recycling within the system is related to the...

    D. L. DeAngelis, P. J. Mulholland, ... A. D. Steinman in Environmental Management
    Article 01 September 1990
  12. The significance of the biological sulfur cycle in rice production

    Rice is one of the world’s most important food crops, forming nearly 20 percent of the world’s food grain production [226]. It is grown on 137 × 106...
    J. R. Freney, V. A. Jacq, J. F. Baldensperger in Microbiology of Tropical Soils and Plant Productivity
    Chapter 1982
  13. Ecological perspective on water quality goals

    The central assumption of nonpoint source pollution control efforts in agricultural watersheds is that traditional erosion control programs are...

    James R. Karr, Daniel R. Dudley in Environmental Management
    Article 01 January 1981
Did you find what you were looking for? Share feedback.