Watershed Hydrology


Book Description




Hydrologic Data for Experimental Agricultural Watersheds in the United States, 1969


Book Description

This publication presents selected hydrologic data for the calendar year 1969 and earlier years for some watersheds. It includes data include monthly precipitation and runoff, annual maximum discharges and annual maximum discharge and volume of runoff for 204 intervals of 1, 2, 6, and 12 hours and for 1, 2, and 8 days for 167 watersheds; daily precipitation for 165 watersheds; daily maximum and minimum air temperatures for 16 watersheds; and detailed information for 1 or more selected typical storm events for 143 watersheds.




Urban Stormwater Management in the United States


Book Description

The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.










Forest Hydrology


Book Description

Forests cover approximately 26% of the world's land surface area and represent a distinct biotic community. They interact with water and soil in a variety of ways, providing canopy surfaces which trap precipitation and allow evaporation back into the atmosphere, thus regulating how much water reaches the forest floor as through fall, as well as pull water from the soil for transpiration. The discipline "forest hydrology" has been developed throughout the 20th century. During that time human intervention in natural landscapes has increased, and land use and management practices have intensified. The book will be useful for graduate students, professionals, land managers, practitioners, and researchers with a good understanding of the basic principles of hydrology and hydrologic processes.




Agricultural Practices and Water Quality


Book Description

SEDIMENT AS A WATER POLLUTANT; PLANT NUTRIENTS AS WATER POLLUTANTS; PESTICIDES AS WATER POLLUTANTS; ANIMAL WASTES AS WATER POLLUTANTS; AGRICULTURAL POLLUTION IMPLICATIONS; AGRICULTURE'S INVOLVEMENT IN POLLUTED AND CLEAN WATER.




Hydrologic Data for Experimental Agricultural Watersheds in the United States, 1956-59


Book Description

This publication presents basic data on monthly precipitation and runoff; annual maximum discharges and volumes of runoff; and selected runoff events with associated data on rainfall, land use, and antecedent conditions for agricultural watersheds where research studies were in progress in the period 1956-59. Its presentation is a continuation of the activity of processing and releasing hydrologic data of general interest gathered cooperatively with other agencies.




Restoration of Aquatic Ecosystems


Book Description

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.