期刊
ENVIRONMENTAL MONITORING AND ASSESSMENT
卷 67, 期 1-2, 页码 69-88出版社
SPRINGER
DOI: 10.1023/A:1006435721636
关键词
acidification; core variable; solar bleaching; thermal and optical responses; water clarity
We present evidence from studies of lakes in Killarney Park, Ontario. Canada that water clarity is a key variable for monitoring the effects of climate change, high UV exposure and acidification. In small oligotrophic lakes, these stressors affect water clarity primarily by altering the concentration of DOC in lake water. Clear lakes (<2 mg L-1 DOC) proved to be highly sensitive indicators of stressors, exhibiting large thermal and optical responses to small changes in DOG. Extremely clear (<0.5 mg L-1 DOC) acidic lakes showed the effects of climate change and solar bleaching in recent decades. These lakes became much clearer even though they were slowly recovering from acidification.
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