RUI: Assessing Change in Aquatic Resources Using a Historical Data Base: Effects of Land Use on Lakewater Chemistry and Plankton Biodiversity

RUI:利用历史数据库评估水生资源的变化:土地利用对湖水化学和浮游生物多样性的影响

基本信息

  • 批准号:
    9306587
  • 负责人:
  • 金额:
    $ 33.75万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1993
  • 资助国家:
    美国
  • 起止时间:
    1993-07-01 至 1996-12-31
  • 项目状态:
    已结题

项目摘要

The focus of this study is to utilize historical information in order to examine and document relationships between land use and the character of lakewater chemistry and phytoplankton biodiversity in a suite of 30 lakes. Three sets of historical information will be assembled for each of the 30 waterbodies. The first set of data will consist of a detailed analysis of the siliceous algal phytoplankton flora for each lake for 1934, 1970, 1990, and for pre-European settlement. The floras will be determined using microfossil remains from lead-210 dated sediment cores. The second set of data will consist of lakewater chemical analyses from the same time periods assembled from actual chemical records and/or inferred from paleolimnological inference models. The third set of data will consist of land use determinations for each surrounding watershed for 1934, 1970 and 1990, derived from high resolution aerial photographs, historical maps and other archived land use records. The three sets of data will be used to correlate changes in the chemical and biological status of each lake with measured alterations in land use for three time periods, the arrival of Europeans to the 1930s, the 1930s to 1970s, and the 1970s to 1990s. %%% One of the primary causes of anthropogenic stress on aquatic ecosystems is the increase in solute content of runoff from catchment basins caused by a change in land use. Despite this fact, the impacts that changing land cover patterns have on receiving waterbodies are poorly understood. The availability of detailed historical records coupled with the ability to extract data from the sediment record offers a rare opportunity to analyze the effects of land use on aquatic ecosystems. A fundamental understanding of how changes from one type of land use to another could alter a nearby waterbody would provide a powerful tool for lake management. The integration of historical records, as outlined in this study, could serve as a model for similar projects in other geographic regions.
这项研究的重点是利用历史信息来检查和记录30个湖泊的土地利用与湖泊水化学特征和浮游植物生物多样性之间的关系。将为30个水体中的每个水体收集三组历史信息。第一组数据将包括对每个湖泊1934年、1970年、1990年以及欧洲之前定居的硅藻浮游植物区系的详细分析。植物群将利用来自铅210年代沉积物岩心的微化石遗骸来确定。第二组数据将包括来自同一时期的湖水化学分析,收集自实际化学记录和/或从古湖泊推断模型中推断。第三组数据将包括1934年、1970年和1990年每个周围分水岭的土地使用确定,这些数据来自高分辨率航空照片、历史地图和其他存档的土地使用记录。这三组数据将被用来将每个湖泊的化学和生物状态的变化与三个时期的土地利用测量变化相关联,这三个时期是欧洲人到达20世纪30年代、30年代到70年代和70年代到90年代。人类活动对水生生态系统造成压力的主要原因之一是由于土地利用的变化导致集水流域径流中的溶质含量增加。尽管如此,人们对不断变化的土地覆盖模式对水体接收的影响知之甚少。详细的历史记录,加上从沉积物记录中提取数据的能力,为分析土地利用对水生生态系统的影响提供了难得的机会。从根本上理解一种土地利用类型的变化如何改变附近的水体,将为湖泊管理提供强有力的工具。如本研究概述的那样,历史记录的整合可以作为其他地理区域类似项目的模式。

项目成果

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Peter Siver其他文献

Peter Siver的其他文献

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{{ truncateString('Peter Siver', 18)}}的其他基金

RUI: From Greenhouse to Icehouse: Documenting evolutionary trends in freshwater siliceous organisms over 80 million years of environmental change
RUI:从温室到冰库:记录 8000 万年环境变化中淡水硅质生物的进化趋势
  • 批准号:
    1940070
  • 财政年份:
    2020
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
RUI: Paleobiology of the Eocene Giraffe Fossil Locality: Response of an Arctic Ecosystem to a Greenhouse Climate
RUI:始新世长颈鹿化石产地的古生物学:北极生态系统对温室气候的响应
  • 批准号:
    1725265
  • 财政年份:
    2017
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
RUI: Characterizing Arctic lakes during greenhouse climates through an analysis of siliceous organisms: A glimpse of what the future may hold.
RUI:通过对硅质生物的分析来描述温室气候下的北极湖泊的特征:展望未来。
  • 批准号:
    1144098
  • 财政年份:
    2012
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Continuing Grant
OPUS: RUI - Promoting and preserving the study of scaled chrysophytes with an emphasis on global climate change, evolutionary stasis, phylogeny and biogeography
作品:RUI - 促进和保护鳞片金藻植物的研究,重点是全球气候变化、进化停滞、系统发育和生物地理学
  • 批准号:
    1049583
  • 财政年份:
    2011
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
RUI: Documenting the Effects of Global Warming on an Arctic Eocene Lake Using Siliceous Microfossil Remains
RUI:利用硅质微化石遗迹记录全球变暖对北极始新世湖泊的影响
  • 批准号:
    0716606
  • 财政年份:
    2007
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
RUI: Documenting, Understanding and Conserving the Biodiversity of Freshwater Siliceous Algae in Coastal Ponds Along Eastern North America
RUI:记录、理解和保护北美东部沿海池塘淡水硅质藻类的生物多样性
  • 批准号:
    0343355
  • 财政年份:
    2004
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
RUI: Web-Based Tools to Enhance Understanding of Microscopic Biodiversity
RUI:基于网络的工具,增强对微观生物多样性的理解
  • 批准号:
    0229531
  • 财政年份:
    2003
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
RUI: An Inventory of Scaled Chrysophytes and Diatoms in Seepage Lakes Along the East Coast of the United States: A Basis for the Future Conservation of Microscopic Organisms
RUI:美国东海岸渗漏湖中的鳞状金藻和硅藻清查:未来微生物保护的基础
  • 批准号:
    9972120
  • 财政年份:
    1999
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
RUI: Using a Paleolimnological Approach to Assess the Interactive Effects of Acidic Deposition and Eutrophication on Softwater Lakes
RUI:使用古湖泊学方法评估酸性沉积和富营养化对软水湖的相互作用影响
  • 批准号:
    9615062
  • 财政年份:
    1997
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant
U.S.-Argentina Cooperative Science Program: Biodiversity and Ecology of Chrysophyta in the Parana River Region (Argentina)
美国-阿根廷合作科学计划:巴拉那河地区金藻生物多样性和生态学(阿根廷)
  • 批准号:
    9301883
  • 财政年份:
    1993
  • 资助金额:
    $ 33.75万
  • 项目类别:
    Standard Grant

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