Understanding Science Terms That Explain Our Environment
Water shapes everything in the Credit River Watershed, but understanding how it moves starts with knowing the right words. When we talk about the environmental conditions, natural cycles and processes in the watershed, you may hear terms that sound technical. These words aren’t meant to complicate things but rather reveal the science and intricate processes behind our conservation work and the natural systems that support healthy rivers, wetlands and resilient communities.
In this first installment of Nature’s Dictionary, we’re exploring five science terms that help explain how water moves through the Credit River Watershed and shapes the ecosystems around us.
1. Fluvial Geomorphology
Fluvial geomorphology is the study of how rivers shape the land around them.
Environmental scientists study how flowing water moves sediment, forms river channels and floodplains, and reshapes landscapes over time. This knowledge helps guide restoration projects so rivers can function more naturally.
How We use Fluvial Geomorphology in our Work
By applying fluvial geomorphology, we can better understand how rivers naturally move and change, allowing restoration projects to improve habitat, reduce erosion and support long-term watershed health.
2. Watershed
A watershed is an area of land where all rain and melting snow drain into the same body of water. In the Credit River Watershed, water flows through forests, wetlands, streams and communities into the Credit River before eventually reaching Lake Ontario. Everything that happens on the land, from planting trees to managing stormwater, can influence the health of the watershed.
How Watershed-based Planning Guides our Work
Watershed-based planning guides our work from tree planting and wetland restoration to stormwater management and long-term monitoring through programs like the Integrated Watershed Monitoring Program (IWMP).
3. Infiltration
Infiltration describes the process of water soaking into the ground instead of flowing across the surface.
Healthy soils, forests and wetlands allow more water to infiltrate, helping replenish groundwater and reduce the risk of flooding during heavy rainfall.
How Our Work Supports Healthy Infiltration
Through green infrastructure and low impact development projects, we offer solutions that improve infiltration, allowing rainwater to be absorbed where it falls rather than contributing to runoff.
4. Wetland Hydroperiod
Hydroperiod refers to how long water remains in a wetland. Some wetlands hold water year-round, while others fill with water only during certain seasons. The hydroperiod of a wetland influences what plants and animals can live there.
How We Use Wetland Hydroperiod Data in Our Work
When designing wetland restoration projects, we use hydroperiod to understand how water is stored and retained on the landscape, helping us to create the right conditions for diverse habitats.
5. Headwaters
Headwaters are the small streams and wetlands where rivers begin. Although the individual headwater features may appear small, the headwaters in the Credit River Watershed represent a large area. They play an important role in maintaining water quality, supporting aquatic habitat downstream and helping connect surface water with groundwater that sustains river flows during dry periods.
How our Work Protects Headwaters
By protecting headwaters, people can help maintain the natural systems that regulate water flow, improve water quality and support healthy rivers from their source to Lake Ontario.
Why These Words Matter
Understanding the science behind how water moves through the landscape helps guide conservation action across the Credit River Watershed. From restoring streams to enhancing wetlands, these natural systems play an important role in supporting healthy ecosystems and resilient communities.
Learn more about the science behind conservation in the Credit River Watershed.
By Kimberley Laird, Associate, Marketing and Communications
Really appreciate the terms and meanings.
Thank you for your positive feedback, Ron