Browse by Archive
The TAMU Digital Repository
|
During the past 150 years, several Texas watersheds have undergone significant changes that affect land use, the amount of water flowing through these systems, water quality, and the numbers and types of fish and aquatic species that live in...
2007-11-20
2007-11-20 2003-12-01 |
|
The Texas Water Resources Institute (TWRI), and many other agencies and organizations, have worked with Ralph Wurbs over the years to develop WRAP (the Water Rights Analysis Package). The WRAP model simulates management of the water resources of a...
2007-11-20
2007-11-20 2003-08-01 |
|
The Texas Water Resources Institute (TWRI), and many other agencies and organizations, have worked with Ralph Wurbs over the years to develop WRAP (the Water Rights Analysis Package). The WRAP model simulates management of the water resources of a...
2007-11-20
2007-11-20 2003-08-01 |
|
I used a conceptual model proposed by Schlosser (1987) to compare channelized
and unchannelized reaches of the South Sulphur River, Texas. This model suggests that
fish assemblage structure can be predicted based on the level of habitat heteroge...
2007-11-20
2007-11-20 2003-08-01 |
|
Large floodplain rivers are spatially heterogeneous and temporally dynamic ecosystems. However, few studies have quantified the variation or species-environment relationships of fish assemblages in the main-channel of large rivers. Fishes were...
2007-11-20
2007-11-20 2003-12-01 |
|
The book describes the performance of pecan trees; water testing; determining how water quality may affect tree growth; improving drainage; selecting an irrigation system, and water conditioning to manage nutrients. It also describes how to...
2007-11-20
2007-11-20 2002-03-01 |
|
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 |
|
With the current population boom, the number of Texas residents will almost double by 2030. With the expected increase in demand for water, the scarcity of water is an urgent issue and research is being conducted to find ways to improve water...
2007-11-20
2007-11-20 2002-08-14 |
|
Texas faces a formidable challenge in meeting the water needs of its citizens as its population doubles over the next fifty years. To meet this challenge and to provide necessary flows of water for the environment, Texas will need to rely upon...
2007-11-26
2007-11-26 2002-09-01 |
|
With the settlement of Texas and establishment of ranchers to produce cattle, there was an effort to maximize beef production. This caused serious overgrazing. In addition, there was a reduced incidence of fires across the landscape to clear out...
2007-11-28
2007-11-28 2002-11-01 |
|
Initial construction costs and net annual changes in operating and maintenance expenses are identified for the capital renovation project proposed by Harlingen Irrigation District Cameron County No. 1 to the North American Development Bank...
2007-11-28
2007-11-28 2002-10-01 |
|
A mathematical discourse is provided, documenting the economic and financial methods used in RGIDECON, an Excel spreadsheet capital investment evaluation model focused on irrigation district-level pumping and delivery systems. These methods and...
2007-11-28
2007-11-28 2002-10-01 |
|
Initial construction costs and net annual changes in operating and maintenance expenses are identified for the capital renovation project proposed by Edinburg Irrigation District Hidalgo County No. 1 to the North American Development Bank...
2007-11-28
2007-11-28 2002-11-01 |
|
This report was completed for the Senate Bill 1 Rio Grande Regional Water Planning Project (Region M) by the District Management System (DMS) team under the direction of Dr. Guy Fipps. Funding was provided through the Texas Agricultural Experiment...
2007-11-28
2007-11-28 2001-08-01 |
|
This study estimates the regional and statewide economic impacts of recreational and commercial fishing and bay and estuary related recreational activities in the six bay and estuary systems along the Texas Gulf Coast.
The study area covers six...
2007-11-28
2007-11-28 2001-05-01 |
|
A 23-site monitoring well network located in the Trinity Aquifer region of Central Texas, with all wells penetrating the Middle Trinity Aquifer, was used with available values of aquifer storativity and specific yield to estimate recharge to the...
2007-11-28
2007-11-28 2001-10-01 |
|
Currently, sections of Harris and Montgomery counties located North and Northeast of Houston use groundwater almost exclusively. These areas have witnessed substantial population growth and associated increases in water demand. In 1999...
2007-11-28
2007-11-28 2001-10-01 |
|
The Rio Grande originates in the southern Colorado Rocky Mountains, flows through New Mexico, and forms the border between the U.S. and Mexico on its way to the Gulf of Mexico. Serving over one-million acres of irrigated land and the municipal and...
2007-11-28
2007-11-28 2001-02-01 |
|
An interdisciplinary research team, working in collaboration with and under the auspices of the Institute for Science, Technology and Public Policy in the George Bush School of Government and Public Service at Texas A&M University, conducted a...
2007-11-28
2007-11-28 2000-09-25 |
|
The investigation documented by this report consists of identifying, developing, and evaluating alternative approaches for estimating sequences of monthly naturalized streamflows at ungaged sites based on known naturalized flows at gaged...
2007-11-28
2007-11-28 1999-08-01 |
|
The EAA implemented a pilot irrigation suspension program in 1997 on 9,669 acres mainly in Medina and Uvalde counties with the objective of increasing springflow at Comal Springs, and providing relief to municipalities in meeting Critical Period...
2007-11-28
2007-11-28 1998-02-01 |
|
This study investigated the economics of an Edwards Aquifer region "dry-year option" buyout directed toward decreasing agricultural water use in an effort to augment springflow. The research involved several phases. First, we applied crop growth...
2007-11-29
2007-11-29 1997-04-01 |
|
Metal pollution of surface water resources in Texas is a significant problem, and is caused by the inflow of sediments from oil fields, old mines and industrial sites, and by the discharge of metal contaminated sewage and industrial effluents. In...
2007-11-29
2007-11-29 1997-06-01 |
|
The evolution of the Water Rights Analysis Package (WRAP) is outlined in the "Model Development Background" section of Chapter 1 of this report. The model was developed in conjunction with a series of university research projects sponsored by the...
2007-11-29
2007-11-29 1996-10-01 |
