Effect of eco-friendly restoration on the community characteristics of benthic macroinvertebrates in forested bog
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This study was conducted to identify the stability and the community structure of benthic macroinvertebrates after the restoration in order to evaluate the restoration ability of aquatic ecosystems according to the eco-friendly restoration in the forested bog. The benthic macroinvertebrates collected from the surveyed sites were composed of 1,071 individuals, 60 species, 40 families, 13 orders, 6 classes, and 5 phyla. At the control and Site 3 (small dam), the number of species and individuals were larger than that of other sites, and EPT group ratio was the same as well. Considered by index, the dominance index (DI) was found the highest at the biotope area. The diversity index (H’) and richness index (RI) was the highest at the control and Site 3. In addition, ESB value showed the highest at site 3, while the lowest at the biotope area. The stability and recovery of benthic macroinvertebrates showed differences according to restoration types at the forested bog. The vertical structure installed for the restoration decreased the flow velocity. It is judged that soil and rocks deposited at the upper part of the stream created a habitat space to increase the species that live at its basis. In addition, it showed that when a pool was created inside the forested bog to maintain the water resource, benthic macroinvertebrates came there to live, and the aquatic ecological environment was improved. The value of a stable community index depending on the restoration suggests that the eco-friendly restoration can provide a more suitable environment for aquatic animals.
Keywords: Climate change, Biodiversity conservation
ID: 3622538