RECOVER MAP 3.1.4.4 Ridge and Slough Landscape Sustainability - Flow monitoring

The ridge and slough habitat is central to the Everglades landscape—both ecologically and literally—and the restoration of degraded ridge and slough features is a central goal of CERP. It is critical that we develop an understanding of the dynamics of ridge and slough landscapes under different water flow regimes in order to detect changes in these systems that may result from restoration activities. This study will build upon research supported by the Everglades National Park and will further develop and refine the methods necessary to monitor and detect change in water velocities and bulk water flow in ridge and slough landscapes.
The objective of this work is to conduct flow studies that will measure velocity and water depths within at three Shark River Slough (SRS) sites that are expected to be affected by CERP in the near future. This information will be used to link local velocity and flow regimes to inflow structures and landscape scale sheet flow estimates.

The primary objective of this work is to conduct flow studies that will measure velocity and water depths at three Shark River Slough (SRS) sites. One site is located a few kilometers south of the future 2 mile Tamiami Bridge (just east of the L-67E canal). It is hypothesized that this location will experience substantially higher rates of water flow, deeper water, and possibly longer hydroperiods after removal of the Tamiami Trail levee. The second site is located at roughly the same distance from Tamiami Trail but its location is considerably east of the future bridge and levee removal and will serve as a “bridge reference site”. These sites were chosen to provide two simultaneous experimental designs for detecting change: 1) A traditional “experimental versus reference” statistical analysis, and; 2) a Before-After Control Impact (BACI) statistical analysis. The third site is further down SRS, southeast of the Shark Valley Tower. The measurements at this site will integrate the hydrologic and ecological effects of both the Tamiami Bridge levee removal and the existing S12 structures across a broad ridge and slough landscape

脊沟栖息地在大沼泽地景观中占据核心地位——无论是从生态层面还是实际空间层面——而退化脊沟特征的修复是CERP的核心目标之一。为了监测修复活动可能导致的这些系统变化，理解不同水流模式下脊沟景观的动态变化至关重要。本研究将基于大沼泽地国家公园支持的前期研究，进一步开发和完善监测及检测脊沟景观中水流速度与整体水流变化所需的方法。

本研究的目标是开展水流研究，在近期可能受CERP影响的三个鲨鱼河沟（SRS）站点内测量水流速度和水深。这些信息将用于将局部水流速度和模式与入流结构及景观尺度的片流估算值关联起来。

本研究的主要目标是开展水流研究，在三个鲨鱼河沟（SRS）站点测量水流速度和水深。其中一个站点位于未来两英里塔米亚米大桥以南数公里处（L-67E运河以东）。据假设，在塔米亚米小径堤坝拆除后，该区域的水流速率将显著提高，水位更深，且水文周期（hydroperiod）可能更长。第二个站点与塔米亚米小径的距离大致相同，但位置远在未来大桥及堤坝拆除区域以东，将作为‘桥梁参考站点’。选择这些站点旨在为变化检测提供两种并行的实验设计：1）传统的‘实验组与对照组’统计分析；2）前后对照影响（Before-After Control Impact, BACI）统计分析。第三个站点位于鲨鱼河沟（SRS）下游更远处，鲨鱼谷塔东南方向。该站点的测量将综合塔米亚米大桥堤坝拆除及现有S12结构在广阔脊沟景观中的水文与生态效应。