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Harvard Forest REU Symposium Abstract 2023
- Title: The Flowing Frontier: Gaining Insight into the Dynamic Nature of Streams at Harvard Forest
- Author: Aerial J Kruger (Portland Community College)
- Abstract:
Harvard Forest’s ecosystem is being drastically changed due to the Hemlock Woolly-Adelgid. Canopy cover becomes drastically diminished as trees are being decimated. This phenomenon also affects soil respiration, nutrient runoff, and the elevation of stream temperatures. My research involves the study of Harvard Forests streams and the disparate and interconnected relationship between the two stream systems found here: Arthur (Bigelow) brook and Nelson brook. What’s fascinating is the color of Nelson brook. When observed, Nelson creek has a consistent, dark hue that resembles a cup of tea that has steeped for too long. Leaf litter and forest debris can be found along Nelson brook, but that isn’t the direct source of the discoloration. The Black Gum Swamp flows into Nelson, and brings with it mucky, organic soils that have broken down and remained in the dried beds when flow rates are low. As rain falls, it washes this muck down into Nelson, giving it the color we see today. This causes Nelson creek to be fairly acidic (3.71-4.38) with high turbidity. Arthur brook is the direct opposite. With numbers falling closer to basic (4.53-5.73), this tells us that within seemingly the same ecosystem, these two streams are experiencing opposite environmental qualities. With my project, I delve into the significance of comprehending stream health and explore how water plays a pivotal role in understanding the ecology of forests and connecting ecosystems. My research aims to construct techniques aligned with Harvard Forest's broader outlook on developing forest conditions and integrity, providing lasting information for future comprehensive studies.
- Research Category: Large Experiments and Permanent Plot Studies
