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301 - 325 of 485 Items << < 8 9 10 11 12 13 14 15 16 17 > >>
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Effective management of its surface water resources is essential to the continued growth and prosperity of the state of Texas. Rapid population and economic growth combined with depleting ground water reserves are resulting in ever increasing...
2007-11-30
2007-11-30 1985-06-01 |
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The Seymour Aquifer of north-central Texas is known to have elevated levels of nitrates. The design of economically sound policies for reducing agriculture's nitrate contribution to the aquifer suggests a need to evaluate alternative management...
2007-11-30
2007-11-30 1994-12-01 |
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A GIS-based hydrological/water quality model called Non Point Source Model (NPSM) was used to simulate various physical, chemical and biological processes taking place in the Leon Creek Watershed, near San Antonio, Texas. The model was then used...
2007-11-20
2007-11-20 2000-12-01 |
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The work presented in this report is the basis for a portion of the author?s dissertation
research. On a grand scheme, this research will enhance the effectiveness of hydrodynamic
modeling and data development for Texas waterbodies, as well as for...
2007-11-19
2007-11-19 2024-05-19 |
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Texas Water Resources Institute and the U.S. Geological Survey under Project 5903.
2015-03-13
2015-03-13 1997-05-19 2015-03-13 |
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2010-02-22
2010-02-22 2004-05-01 2010-02-22 |
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2009-11-30
2009-11-30 1995-09-01 2009-11-30 |
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Texas Commission on Environmental Quality,
Texas Parks and Wildlife Department, and
Texas Water Development Board
2009-11-24
2009-11-24 2008-05-01 2009-11-24 |
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Forty-nine families and 268 species of fishes are known to inhabit the freshwaters of Texas. We report on the distribution and status of these fishes and provide a key to their identification. Of the native fishes originally found in Texas, five...
2009-06-26
2009-06-26 2008-07-01 2009-06-26 |
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A personal computer (PC) based decision-support system (DSS) can provide real-time information for improved flood prevention and control in the Trinity River basin in Texas. It uses specialized versions of the well-known programs HEC-1 and HEC-5...
1995-09-01
2008-11-18 2008-11-18 1995-09-01 2008-11-18 |
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In this article the authors examine the impact of recent
immigration on rates of serious property crime across communities in
Austin, Texas. The greater Austin foreign-born population has increased
by more than 580 percent since 1980, and Austin...
2013 (iso8601)
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A survey of how North Harris Montgomery Community College District (NHMCCD) advisory committee members perceived their committee's involvement in the nine state-prescribed functions of an effective advisory committee is the primary focus of this...
2008 (iso8601)
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More than any other natural resource, water holds the key to our future. Yet scarcity and competition for water, heightened environmental concerns, and the expense of new water-supply development make sound water management increasingly difficult...
2006-07-19
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Potential increased sodium loads in the Rio Grande associated with drainage from Mexican farmer fields is avoided due to the El Morillo Drain, located in Mexico. Random failures of the Drain threaten the quality of source water available to Rio...
2007-07-24
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A report on rare and endangered plants and animals in the Trinity River Basin, Texas, from the papers of Ned Fritz. During the early 1970s, Fritz was concerned with the threat to the environment posed by the construction of channels, locks, and...
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An excerpt from a bimonthly newspaper, published by Robin T. Cravey of Austin Texas. The issue features articles on the U.S. Army Corps of Engineers' projects on the Trinity River and the Sulphur River. The Trinity article reports on the...
1971-05-31
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A slide from the collection of environmentalist, Ned Fritz, depicting views of the Trinity River, Texas. In the 1970s, Fritz campaigned with the group, Citizens' Organization for a Sound Trinity, to stop the canalization of the Trinity River. This...
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The prepared statement of Henry Graeser, submitted to the Public Works Subcommittee on Appropriations during hearings in Washington, D.C., in May 1973. Graeser supported proposals for water projects in the Trinity River Basin.
1973-05-23
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There is an increasing need to strategize and plan irrigation systems under varied climatic conditions to support efficient irrigation practices while maintaining and improving the sustainability of groundwater systems. This study was undertaken...
2018-12-05
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Population expansion and water shortfalls have placed the Texas Lower Rio Grande Valley (Valley) center stage in water publicity. The unique characteristics and lack of public knowledge on how irrigation districts divert and convey water from the...
2009-01-12
2009-01-12 2007-12-01 |
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2013-12-03
2013-12-03 2024-05-19 |
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Agriculture is a major income-producing sector in the Texas economy and a large part of this economic activity originates in irrigated crop production. For example, in 1973, 50% of all grain sorghum and 46% of all cotton in Texas were produced on...
2011-07-01
2011-07-01 1976-06-01 |
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2011-07-07
2011-07-07 2006-10-01 |
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This report summarizes the results of the research project, Development of Optimization - Systems Analysis Techniques for Texas Water Resources.
Several analytical models which were obtained and modified for use in evaluating water resource...
2011-06-30
2011-06-30 1969-02-01 |
