SGER: Initial Response of Stream Biota to Catastrophic Flooding; Interaction Between Flood Magnitude, Watershed Physiography and Landscape Alteration

SGER：溪流生物群对灾难性洪水的初步响应；

• 批准号: 9526935
• 负责人: Charles Hawkins
• 金额: $ 2万
• 依托单位: Utah State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-08-15 至 1996-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9526935&HistoricalAwards=false
• 关键词: SGER; Initial; Response; Stream; Biota

Hawkins the proposed research will quantify the initial response of steam biota to catastrophic flooding in several mountainous streams of California. Our primary hypothesis is that the magnitude of effect that flooding has on biota is influenced by both naturally occurring differences among watersheds in their sensitivity to flooding and the amount of land use that has occurred within each watershed. To test this hypothesis, will resample streams in up to 45 watersheds that were previously sampled during the drought years of 1988 and 1989 and compare pre- and post-flood abundances and species occurrence in each watershed.

霍金斯提出的研究将量化蒸汽生物群对加州几条山区溪流灾难性洪水的初步反应。 我们的主要假设是，洪水对生物群的影响程度受到流域之间对洪水敏感性自然存在的差异以及每个流域内发生的土地利用量的影响。 为了检验这一假设，将对多达 45 个流域的溪流进行重新采样，这些流域之前在 1988 年和 1989 年干旱年份进行了采样，并比较每个流域洪水前后的丰度和物种出现情况。