Title
Sedimentation rates in two pit lakes: Implications for riverine flow-through as a closure strategy
Document Type
Conference Proceeding
Publication Title
IMWA 2019 Conference – Mine Water: Technological and Ecological Challenges
Publisher
Perm State University
School
School of Science / Centre for Ecosystem Management
RAS ID
29889
Abstract
Lack of organic matter inputs into a pit lake inhibits ecological development. Connecting a river to a pit lake should add organic matter to the lake. Sedimentation traps and sediment sampling was undertaken in two co-occurring pit lakes: one with river flow-through (Lake Kepwari) and one without (WO5H) in Collie, Western Australia.Carbon in the sediment did not vary between lakes or depths. Sedimentation rates did not vary between lakes during low/no river inflow periods. River inflow did increase sedimentation but without increasing allochthonous inputs of C. Even with river inflow C accumulation in the lakes remains very low.
Access Rights
subscription content
Research Themes
Natural and Built Environments
Priority Areas
Environmental science, ecology and ecosystems
Comments
Lund, M., Polifka, J., Quintero Vasquez, M., Ramesseur, R., Bignell, R., & Yangzom, D. (2019). Sedimentation rates in two pit lakes: Implications for riverine flow-through as a closure strategy. In E. Khayrulina, Ch. Wolkersdorfer, S. Polyakova, & A. Bogush (Eds.), IMWA 2019 Conference – Mine Water: Technological and Ecological Challenges (pp. 477 – 484). Perm, Russia: Perm State University. https://www.imwa.info/imwaconferencesandcongresses/proceedings/306-proceedings-2019.html