| 项目编号: | 1420978
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| 项目名称: | Using the Tools of Conservation Paleobiology to Assess the Impact of the Engineered Spring-Flood of the Colorado River |
| 作者: | Gregory Dietl
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| 承担单位: | Paleontological Research Institute
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| 批准年: | 2013
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| 开始日期: | 2014-03-01
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| 结束日期: | 2016-02-29
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| 资助金额: | USD16185
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | colorado river
; engineered spring-flood
; early spring
; natural annual river discharge
; conservation paleobiology
; conservation paleobiologist
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| 英文摘要: | Using the Tools of Conservation Paleobiology to Assess the Impact of the Engineered Spring-Flood of the Colorado River
By
Gregory P. Dietl, Paleontological Research Institute, EAR-1420978
ABSTRACT
The over allocation of the Colorado River's water has led to the ecological devastation of its delta and lowermost channel. The Colorado River annually delivered over fifteen million acre-feet (~1.85x1010 m3) of water to its delta but in recent years that number has been zero. In 2012, via a bi-national agreement known as Minute 319, environmental pulse flows equal to approximately 1% of the natural annual river discharge were negotiated by the United States and Mexico to be released over a five-year trial period. While this engineered environmental flow has the potential to be a restoration success story, there is a crucial gap in our knowledge: no studies on the ecology of the molluscan community in the lowermost channel of the river are available to provide a benchmark for evaluating the success of this restoration effort. The first pulse will be released in the early spring of 2014, providing a small window in which to establish a baseline for current conditions. This proposal thus seeks support to use a relatively simple community-based approach - comparison of molluscan living and time-averaged death assemblages - developed by conservation paleobiologists to establish a baseline. The samples collected will provide a unique perspective on the composition of the pre-pulse-flow community that is not available from any other source, which will allow the asking of future questions about the success of the pulse flows. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/97334
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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| Recommended Citation: | |
Gregory Dietl. Using the Tools of Conservation Paleobiology to Assess the Impact of the Engineered Spring-Flood of the Colorado River. 2013-01-01.
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