Use of water clarity to monitor the effects of climate change and other stressors on oligotrophic lakes

被引：71

作者：

Gunn, JM ^{[1
]}

Snucins, E ^{[1
]}

Yan, ND ^{[1
]}

Arts, MT ^{[1
]}

机构：

[1] Laurentian Univ, Ontario Minist Nat Resources, Cooperat Freshwater Ecol Unit, Sudbury, ON P3E 2C6, Canada

来源：

ENVIRONMENTAL MONITORING AND ASSESSMENT | 2001年 / 67卷 / 1-2期

基金：

加拿大自然科学与工程研究理事会;

关键词：

acidification; core variable; solar bleaching; thermal and optical responses; water clarity;

D O I：

10.1023/A:1006435721636

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：69 / 88

页数：20

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