• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Water >Effects of Land Use Types on Community Structure Patterns of Benthic Macroinvertebrates in Streams of Urban Areas in the South of the Korea Peninsula
【24h】

Effects of Land Use Types on Community Structure Patterns of Benthic Macroinvertebrates in Streams of Urban Areas in the South of the Korea Peninsula

机译：土地利用类型对朝鲜半岛南部城市河流底栖大型无脊椎动物群落结构模式的影响

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Benthic macroinvertebrates were collected from streams located in an urban area from regions featuring different environmental conditions. Physicochemical variables and land use types pertaining to sampling sites were analyzed concurrently. Multivariate analyses (cluster analysis and non-metric multidimensional scaling) and rank-abundance diagrams were used to characterize community patterns to assess ecological integrity in response to environmental conditions. Species composition patterns were mainly influenced by both the gradient of physicochemical variables (e.g., altitude, slope, conductivity) and the proportion of forest area. Community structure patterns were further correlated to the proportion of urbanization and to biological indices (e.g., diversity, number of species). Land use preferences of benthic species were identified based on the indicator values and weighted averaging regression models. Plecoptera species were representative of undisturbed streams in forest areas, whereas Tubificidae species and filtering collector caddis flies were indicator taxa in severely polluted and agricultural areas, respectively. The analyses of community structures and indicator species effectively characterized community properties and ecological integrity following natural and anthropogenic variability in urban stream ecosystems.
机译：底栖大型无脊椎动物是从环境条件不同地区的市区河流中采集的。同时分析了与采样点有关的理化变量和土地利用类型。多变量分析（聚类分析和非度量多维标度）和等级丰度图用于表征群落模式，以评估环境条件下的生态完整性。物种组成模式主要受理化变量梯度（例如海拔，坡度，电导率）和森林面积比例的影响。社区结构模式进一步与城市化的比例和生物指标（例如多样性，物种数量）相关。根据指标值和加权平均回归模型确定底栖物种的土地利用偏好。鞘翅目物种代表了森林地区未受干扰的河流，而在严重污染的地区和农业地区，Tubificidae物种和过滤器收集的蝇科昆虫分别是指示性分类单元。社区结构和指示物种的分析有效地表征了城市河流生态系统中自然和人为变异后的社区特性和生态完整性。

著录项

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