Landscape indicators for monitoring aquatic ecosystem health in urban systems

用于监测城市系统水生生态系统健康的景观指标

• 批准号: 506688-2017
• 负责人: Gergel, Sarah
• 金额: $ 0.9万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640474
• 关键词: Landscape; indicators; monitoring; aquatic; ecosystem

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.

大温哥华为地方政府提供核心公用事业服务，如饮用水和废水处理，以及规划增长和区域公园。城市镶嵌图中土地覆被类型和尺度的多样性导致城市和其他土地覆被类别之间相对较高的制图错误率，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RAPIDEYE以及光探测和测距（LIDAR），以极高的空间分辨率（<5米）绘制城市土地覆盖图，这是大温哥华以前从未有过的水平。在此基础上，我们希望通过ENGAGE Plusto扩展研究，调查RapidEye和LiDAR在城市地区监测水生系统的使用。城市土地利用与土地覆被变化对城市雨水径流、污染物流动和城市河流健康具有重要影响。增加不透水（铺砌）的表面会导致“洪水”径流，并对水生系统产生沉积物和污染物。景观元素，如河岸植被可以减轻洪水和过滤径流，但当转换为不透水的表面，可以加剧这些问题。在这里，我们将建立在城市土地覆盖，我们创造了监测城市溪流景观指标的方法。我们使用高空间分辨率的图像，从我们的第一个参与，以满足城市aquaticmonitoring需要在温哥华。这些技术将为加拿大其他城市的生态健康监测提供可转移的工具。