Fiscal Year ... Program Report
Author : Wyoming Water Resources Center
Publisher :
Page : 428 pages
File Size : 37,89 MB
Release : 1990
Category : Water resources development
ISBN :
Author : Wyoming Water Resources Center
Publisher :
Page : 428 pages
File Size : 37,89 MB
Release : 1990
Category : Water resources development
ISBN :
Author : National Research Council
Publisher : National Academies Press
Page : 580 pages
File Size : 46,94 MB
Release : 1992-01-01
Category : Technology & Engineering
ISBN : 9780309045346
Aldo Leopold, father of the "land ethic," once said, "The time has come for science to busy itself with the earth itself. The first step is to reconstruct a sample of what we had to begin with." The concept he expressedâ€"restorationâ€"is defined in this comprehensive new volume that examines the prospects for repairing the damage society has done to the nation's aquatic resources: lakes, rivers and streams, and wetlands. Restoration of Aquatic Ecosystems outlines a national strategy for aquatic restoration, with practical recommendations, and features case studies of aquatic restoration activities around the country. The committee examines: Key concepts and techniques used in restoration. Common factors in successful restoration efforts. Threats to the health of the nation's aquatic ecosystems. Approaches to evaluation before, during, and after a restoration project. The emerging specialties of restoration and landscape ecology.
Author :
Publisher :
Page : 218 pages
File Size : 50,92 MB
Release : 2003
Category : Groundwater
ISBN :
Author :
Publisher :
Page : 4 pages
File Size : 42,85 MB
Release : 1986
Category : Riparian areas
ISBN :
Defines riparian areas in laymen's terms and provides a brief overview of the value of riparian areas, and how the Bureau of Land management manages them.
Author : National Research Council
Publisher : National Academies Press
Page : 449 pages
File Size : 23,44 MB
Release : 2002-10-10
Category : Science
ISBN : 0309082951
The Clean Water Act (CWA) requires that wetlands be protected from degradation because of their important ecological functions including maintenance of high water quality and provision of fish and wildlife habitat. However, this protection generally does not encompass riparian areasâ€"the lands bordering rivers and lakesâ€"even though they often provide the same functions as wetlands. Growing recognition of the similarities in wetland and riparian area functioning and the differences in their legal protection led the NRC in 1999 to undertake a study of riparian areas, which has culminated in Riparian Areas: Functioning and Strategies for Management. The report is intended to heighten awareness of riparian areas commensurate with their ecological and societal values. The primary conclusion is that, because riparian areas perform a disproportionate number of biological and physical functions on a unit area basis, restoration of riparian functions along America's waterbodies should be a national goal.
Author :
Publisher :
Page : 18 pages
File Size : 32,60 MB
Release : 1995
Category : HEC-6 (Computer program)
ISBN :
Author : Mohamed Meddi
Publisher : MDPI
Page : 212 pages
File Size : 29,51 MB
Release : 2019-09-17
Category : Technology & Engineering
ISBN : 3039214314
Climate and anthropogenic changes impact the conditions of erosion and sediment transport in rivers. Rainfall variability and, in many places, the increase of rainfall intensity have a direct impact on rainfall erosivity. Increasing changes in demography have led to the acceleration of land cover changes in natural areas, as well as in cultivated areas, and, sometimes, in degraded areas and desertified landscapes. These anthropogenized landscapes are more sensitive to erosion. On the other hand, the increase in the number of dams in watersheds traps a great portion of sediment fluxes, which do not reach the sea in the same amount, nor at the same quality, with consequences on coastal geomorphodynamics. This book is dedicated to studies on sediment fluxes from continental areas to coastal areas, as well as observation, modeling, and impact analysis at different scales from watershed slopes to the outputs of large river basins. This book is concentrated on a number of keywords: “erosion” and “sediment transport”, “model” and “practice”, and “change”. The keywords are briefly discussed with respect to the relevant literature. The contributions in this book address observations and models based on laboratory and field data, allowing researchers to make use of such resources in practice under changing conditions.
Author :
Publisher :
Page : 540 pages
File Size : 48,34 MB
Release : 1985
Category : Ecosystem management
ISBN :
Author : Samuel Safran
Publisher :
Page : 228 pages
File Size : 32,23 MB
Release : 2017-01-31
Category : Science
ISBN : 9780990898597
The Tijuana River Valley Historical Ecology Investigation synthesizes hundreds of historical maps, photographs, and texts to reconstruct the ecological, hydrological, and geomorphic conditions of the Tijuana River valley prior to major European-American landscape modification. How did the valley look and function before there was the state of California, the city of Tijuana, or an international border? What habitat types and wildlife were found there? How have these habitat types and the physical processes that shaped them changed over time? And finally, what can the valley's ecological past tell us about its present and future? In answering these fundamental questions, this richly-illustrated study provides scientists, managers, and residents in the valley with information designed to support and inspire ongoing management and restoration activities.
Author : Garnett P. Williams
Publisher :
Page : 96 pages
File Size : 43,76 MB
Release : 1984
Category : Alluvial streams
ISBN :