| Reconciling environmental and flood control goals on an arid-zone river: case study of the limitrophe region of the lower colorado river in the United States and Mexico. | |
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MedLine Citation:
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PMID: 18167018 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Arid zone rivers have highly variable flow rates, and flood control projects are needed to protect adjacent property from flood damage. On the other hand, riparian corridors provide important wildlife habitat, especially for birds, and riparian vegetation is adapted to the natural variability in flows on these rivers. While environmental and flood control goals might appear to be at odds, we show that both goals can be accommodated in the Limitrophe Region (the shared border between the United States and Mexico) on the Lower Colorado River. In 1999, the International Boundary and Water Commission proposed a routine maintenance project to clear vegetation and create a pilot channel within the Limitrophe Region to improve flow capacity and delineate the border. In 2000, however, Minute 306 to the international water treaty was adopted, which calls for consideration of environmental effects of IBWC actions. We conducted vegetation and bird surveys within the Limitrophe and found that this river segment is unusually rich in native cottonwood and willow trees, marsh habitat, and resident and migratory birds compared to flow-regulated segments of river. A flood-frequency analysis showed that the existing levee system can easily contain a 100 year flood even if vegetation is not removed, and the existing braided channel system has greater carrying capacity than the proposed pilot channel. |
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Authors:
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Edward P Glenn; Kate Hucklebridge; Osvel Hinojosa-Huerta; Pamela L Nagler; Jennifer Pitt |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: Environmental management Volume: 41 ISSN: 0364-152X ISO Abbreviation: Environ Manage Publication Date: 2008 Mar |
Date Detail:
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Created Date: 2008-02-14 Completed Date: 2008-07-31 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 7703893 Medline TA: Environ Manage Country: United States |
Other Details:
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Languages: eng Pagination: 322-35 Citation Subset: IM |
Affiliation:
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Environmental Research Laboratory, Tucson, AZ 85706, USA. eglenn@ag.arizona.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Birds Calibration Disasters* Geographic Information Systems Mexico Plants Rivers* United States |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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