• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Influence of structural disturbance on stream function and macroinvertebrate communities in Upper Coastal Plain headwater streams.
【24h】

Influence of structural disturbance on stream function and macroinvertebrate communities in Upper Coastal Plain headwater streams.

机译：结构扰动对上游沿海平原源水流的水流功能和大型无脊椎动物群落的影响。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Freshwater is a resource under threat due to anthropogenic actions. Stream restoration is a common method for mitigating disturbance. Inconsistent methodologies for evaluating restoration need have drawn criticism. Limited use of baseline data guiding stream restoration activities is of particular concern. This study was developed to elucidate metrics that differentiate reference and disturbed sites in Upper Coastal Plain streams. This information could improve resource use and success rates of restorations. Structural and functional variables were examined in 10 reference and 10 streams that meet the traditional definition of disturbance and would be restoration priorities. Disturbed streams were classified into two regimes, temporal, based on time since disturbance, and categorical, based on disturbance cause. Some metrics of geomorphology, water chemistry and macroinvertebrates differentiated reference from disturbed regimes and while other metrics separated streams within disturbance regimes. Surprisingly, leaf decay rate was not an effective metric for determining disturbance. However, macroinvertebrate leaf pack colonizers were found to be useful for differentiating reference sites and disturbance regimes. Of the 10 disturbed streams this study examined, my data suggests that only three are in immediate need of restoration. This study emphasizes the importance of baseline data and its potential benefits for guiding stream restoration.;Keywords: Stream, Macroinvertebrates, Restoration, Reference, Disturbance, Leaf packs.
机译：由于人为行为，淡水是一种受到威胁的资源。流恢复是缓解干扰的常用方法。评估修复需求的方法不一致，引起了批评。指导流恢复活动的基线数据使用有限，特别令人关注。开展这项研究的目的是阐明区分上沿海平原河流参考点和受干扰点的指标。这些信息可以提高资源利用率和修复成功率。结构和功能变量在10个参考流和10个流中进行了检查，这些流符合传统的干扰定义，将是恢复的重点。扰动的流分为两种状态，一种是基于扰动以来的时间的时间类型，另一种是基于扰动原因的类型。某些地貌学，水化学和无脊椎动物的度量将参考与受干扰的体制区分开，而其他度量则将受干扰的体制内的流分开。令人惊讶的是，叶片腐烂率不是确定干扰的有效指标。然而，发现大型无脊椎动物叶丛定殖器可用于区分参考部位和干扰状况。这项研究检查了10条受干扰的溪流，我的数据表明只有3条急需恢复。这项研究强调了基线数据的重要性及其对指导河流恢复的潜在益处。关键词：河流，无脊椎动物，恢复，参考，干扰，叶丛。

著录项

  • 作者

    Biemiller, Richard A.;

  • 作者单位

    University of Kentucky.;

  • 授予单位 University of Kentucky.;
  • 学科 Entomology.;Limnology.
  • 学位 Ph.D.
  • 年度 2016
  • 页码 208 p.
  • 总页数 208
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号