Landscape indicators for monitoring aquatic ecosystem health in urban systems

温哥华大都会为地方政府提供核心公用事业服务，如饮用水和废水处理，以及发展规划和区域公园。城市镶嵌中土地覆盖类型和比例尺的多样性导致城市和其他土地覆盖类别之间的制图错误率较高，这可能是城市规划的一个问题。我们最初的Engage项目涉及对先进遥感技术的详细调查，特别是高空间分辨率的RapidEye以及光探测和测距(LIDAR)，以绘制极高空间分辨率(&lt；5米)的城市土地覆盖图，其水平前所未有地适用于温哥华大都会。在此基础上，我们希望通过Engage Plustto调查RapidEye和LiDAR在城市地区监测水生系统的使用情况，从而扩大研究范围。城市地区土地利用和土地覆盖的变化对雨水径流、污染物流动和城市河流健康有着根本的影响。增加不透水(铺面)表面可能会导致“闪光”的径流，并对水生系统造成污染和污染物。景观元素，如河岸植被，可以缓解洪水和过滤径流，但当转化为不透水的表面时，可能会加剧这种问题。在这里，我们将在我们生产的城市土地覆盖的基础上，创建使用景观指标监测城市溪流的方法。我们使用第一个项目中的高空间分辨率图像来满足温哥华的城市水产监测需求。这些技术将为加拿大其他城市监测生态健康提供可移植的工具。

Metro Vancouver delivers core utility services such as drinking water and wastewater treatment to localgovernments as well as planning for growth and regional parks. The diversity of land cover types and scales inthe urban mosaic results in relatively high rates of mapping errors among urban and other land cover classes,which can be a problem for urban planning. Our original ENGAGE project involved a detailed investigation ofadvanced remote sensing technologies, specifically high spatial resolution RAPIDEYE as well as LightDetection and Ranging (LIDAR) to map urban land cover at extremely high spatial resolution (<5m), at a levelnever before available to MetroVancouver. Building on this, we wish to extend the research via ENGAGE Plusto investigates the use of RapidEye and LiDAR for monitoring aquatic systems in urban areas. Land use andland cover (LULC) changes in urban areas have fundamental impacts on stormwater runoff, contaminant flow,and urban stream health. Increasing impervious (paved) surfaces can result in "flashier" runoff and contributesediments and contaminants to aquatic systems. Landscape elements such as riparian vegetation can mitigateflooding and filter runoff, yet when converted to impervious surfaces, can exacerbate such problems. Here, wewill build on the urban land cover we produced to create approaches for monitoring urban streams usinglandscape indicators. We use the high spatial resolution imagery from our first ENGAGE to fill urban aquaticmonitoring needs in Vancouver. These techniques will provide transferable tools for other Canadian cities formonitoring ecological health.