The significance of land-use and land-management change in the acidification of lakes in Scotland and Norway: an assessment utilizing documentary sources and pollen analysis
1990 ◽
Vol 327
(1240)
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pp. 363-367
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Documentary sources reveal that various land-use and management changes in the catchments of six Scottish lakes during the past 200 years cannot be related to the acidification of specific lakes nor can acidification be related to any general ‘ land-use5 hypothesis. At five of the sites these conclusions are supported by pollen-derived reconstruction of catchment vegetation. In Norway, documentary evidence fails to support a ‘land-use’ hypothesis of acidification as grazing intensity has actually increased in the area where waters are most strongly acidified. It is considered that the failure to attribute acidification to catchment processes provides further evidence for an explanation in terms of acid precipitation.