The role of feedback mechanisms in historic channel changes of the lower Rio Grande in the Big Bend region
Dean DJ and Schmidt JC. 2010. The role of feedback mechanisms in historic channel changes of the lower Rio Grande in the Big Bend region. Science Direct. 126(3-4):333-349
Large-scale water development of the upper Rio Grande in the U.S. and Mexico, and of the Rio Conchos in Mexico over the last 100 years has resulted in progressive channel narrowing of the lower Rio Grande in the Big Bend region. Multiple spacial and temporal scales as well as hydrologic and historic data were used in analysis of rate, magnitude and processes that led to channel narrowing. Flooding between 1900 and 1940's allowed for mantenance of wide, sandy, multi-threaded river. Later reductions in water flow after 1940's and invasions of non-native species (Tamarix spp., Arundo donax) stimulated channel narrowing.
- Type
- Journal Article
- Authors
- Dean, David; Schmidt, John
- Units
- BIBE
- Keywords
- Aquatic Studies, channel narrowing, Exotic/Invasive Species-Plants, Feedback mechanism, Flood Management/History, Geomorphology, Hydrology (General), Management, Physical Sciences, Plant Studies, Riparian Vegetation, Vertical accretion, Watershed Management
- Subjects
- Ecological Framework: Geology and Soils | Geomorphology | Stream/River Channel Characteristics , Ecological Framework: Water | Hydrology | Marine Hydrology , Ecological Framework: Biological Integrity | Invasive Species | Invasive/Exotic plants