Ecosystem responses to climate change in a large on-river reservoir, Lake Paldang, Korea

Title
Ecosystem responses to climate change in a large on-river reservoir, Lake Paldang, Korea
Authors
조강현
Issue Date
2013
Publisher
CLIMATIC CHANGE
Series/Report no.
CLIMATIC CHANGE ; Vol120 no.1-2 Startpage 477 Endpage 489
Abstract
The impact of climate change on a large river reservoir ecosystem was investigated. Long-term meteorological data showed that recent climate change, including warmer winters, increased precipitation intensity and extended dry periods, may have influenced the basin of Lake Paldang, the most downstream reservoir of a series of on-river reservoirs. Extreme hydrologic events and climate warming, acting independently and in combination, appear to be related to changes in the Lake Paldang ecosystem. A significant increase in chlorophyll a concentrations in early spring corresponded to the timing of ice break-up. An increase in winter temperatures, which resulted in a shorter time period of ice-cover and earlier ice break-up, appears to have stimulated phytoplankton growth in winter and early spring. Repeated intensive and extended influxes of turbid water, associated with more frequent extreme rainfall events, have increased concentration of suspended solids and may have influenced the biotic community structure of Lake Paldang. In the mid-2000s, the area vegetated by submerged hydrophytes, the abundance and biomass of the phylum Mollusca, as well as the abundance of fish from the subfamily Acheilognathinae, which spawn in the body of bivalve molluscs, was all smaller than in the late 1980s and early 1990s. Together, these results suggest that climate change may have contributed directly and indirectly to changes in each trophic level of the Lake Paldang ecosystem.
URI
http://dspace.inha.ac.kr/handle/10505/33244
ISSN
0165-0009
Appears in Collections:
College of Natural Science(자연과학대학) > Biological Sciences (생명과학) > Journal Papers, Reports(생명과학 논문, 보고서)
Files in This Item:
35382.pdfDownload

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse