AAE Tech Services Inc.


Wetland Assessment and Classification

Wetland assessments involve the identification of vegetation species found within a wetland and classification based on a I to V classification scale developed by Stewart and Kantrud (1971). Wetland classification varies depending on vegetation composition in the centre and periphery of the wetland. Hydrologic characteristics such as water permanency also play a key role: Class I wetlands holds surface water only for a few days in the spring or during heavy rain whereas Class V wetlands have permanent open water in the center.

The scope of work to classify a wetland is as follows:

  • Review existing aerial photographs of the project area;
  • Conduct fieldwork to measure wetland size, water depth and plant composition;
  • Fly drone and survey the wetland (size, plant composition, etc.);
  • Determine water permanency (Ephemeral, Temporal, Seasonal Ponds, Semi-Permanent, Permanent);
  • Prepare maps and figures identifying the location of wetlands;
  • Provide photo records of evidence of wetland classification (aerial and ground photos);
  • Classify wetlands based on the Steward and Kantrud Classification system;
  • Reporting (Hard and electronic copies of reports provided).

AAE has the equipment and the experience to meet your wetland assessment needs. Classification and delineation of wetlands is often required by provincial governments as part of license applications and approval processes if wetlands are to be drained or altered. AAE uses accurate methods and state-of-the-art technology to assess and classify wetland habitat. Aerial surveys using our Unmanned Aerial Vehicle, combined with our partnerships and expertise in botany and hydrology, provide valuable knowledge and accurate wetland classification.