Acidification Trends in Surface Waters in the International Program on Acidification of Rivers and Lakes
Acidification Trends in Surface Waters in the International Program on Acidification of Rivers and Lakes
复制标题
国际河流和湖泊酸化计划中地表水的酸化趋势
DOI：
10.1023/a:1022126704750
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
B. Skjelkvåle
中科院分区：
文献类型：
--
作者：
A. Newell;B. Skjelkvåle
我们对来自国际河流和湖泊酸化合作计划的数据进行趋势分析，试图发现欧洲和北美地表水化学长期变化的区域模式，并将这些变化与沉积趋势联系起来。地表水SO3-浓度的下降主要发生在德意志联邦共和国、荷兰和挪威的欧洲站点，以及加拿大安大略省、美国纽约阿迪朗达克山脉和卡茨基尔山脉的北美站点。欧洲站点的其他主要趋势是荷兰、挪威和瑞典的许多站点的Ca2+浓度下降。在挪威南部的几个地点，以及纽约东部的阿迪朗达克和卡茨基尔地区，都观察到NO3-的增加。这一点，再加上碱性阳离子浓度下降的增加，很可能是缺乏记录的地表水从酸化中恢复的原因。尽管在酸化的几个重要变量中存在区域范围的趋势，但使用这些数据没有发现地表水趋势与沉积变化之间的相关性。
We applied trend analyses to data from the International Cooperative Programme forAcidification of Rivers and Lakes in an attempt to discover regional patterns of long-term changesin surface water chemistry both in Europe and North America, and to relate these changes totrends in deposition. Decreases in surface water SO3- concentrations predominated at European sites in theFederal Republic of Germany, The Netherlands, and in Norway, and at the North American sitesin Ontario, Canada, the Adirondacks and Catskill Mountains of New York, U.S.A. Otherpredominating trends in the European sites were decreasing Ca2+ concentrations at many of thesites in The Netherlands, Norway, and Sweden. Increases in NO3- were observed at several sites in southern Norway, and in theAdirondack and Catskill regions of eastern New York. This, combined with an increasedoccurrence of declining base cation concentrations may well be responsible for the lack ofdocumented surface water recovery from acidification. Despite region-wide trends in severalvariables of importance in acidification, no correlations between surface water trends and changesin deposition were found using these data.