The Science of Instream Flows A Review of the Texas Instream Flow Program (2005) / Chapter Skim
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1 Introduction
1 Introduction
Pages 16-21
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From page 16... ...
. Population growth and associated increasing urban demands occur simultaneously with other Texas water supplies and demands: limits on the abilities to develop new supplies or re-allocate water among existing users; legal obligations to provide flows to sustain species and habitat; and greater demands for flows to support recreational, aesthetic, and related preferences.
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From page 17... ...
During the 1980s and 1990s, these three Texas state agencies began to develop programs designed to provide specific flow rates or "instream flows," in Texas streams and rivers in order to balance competing needs for limited flows. In Texas, instream flow describes "a flow regime adequate to maintain an ecologically sound environment in streams and rivers including riparian and floodplain features and necessary for maintaining the diversity and productivity of ecologically characteristic fish and wildlife and the living resources on which they depend" or flows needed to "support economically and aesthetically important activities ...
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From page 18... ...
The PWP identifies the goals of an instream flow study to "determine an appropriate flow regime (quantity and timing of water in a stream or river) that conserves fish and wildlife resources while providing sustained benefits for other human uses of water resources." Eight components give structure to Texas instream flow studies: study design, hydrology and hydraulics, biology, physical processes, water quality evaluations, integration and interpretation, study report, and monitoring and evaluation activities.
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From page 19... ...
The NRC study and this report are directly responsive to the needs and the request for assistance of the three Texas agencies, but this report may apply to instream flow issues beyond the borders of Texas. In Texas and other western states, demands of growth tax water supply and quality and fair water appropriation.
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From page 20... ...
3. Evaluate findings and recommendations of Tasks 1 and 2 for consi tency with the requirements of Texas law for the study of instream flows description of Texas river environments across the large state, current efforts and agency programs that provide the programmatic context for the instream flow study program, and Texas water code and legislation that frame the instream flow program.
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From page 21... ...
Introduction 21 the bulk of the report, findings, and recommendations. The final chapter of the report focuses on implementation aspects of the instream flow program, challenges of implementing an instream flow program in Texas, and integration of the instream flow program with existing water-related state programs.
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