Long-term Trends in Surface Water Quality of Five Lakes in Japan
Long-term Trends in Surface Water Quality of Five Lakes in Japan
复制标题
日本五湖地表水质的长期趋势
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
T. Hakamata
中科院分区：
文献类型：
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作者：
Toshiro Yamada;Takanobu Inoue;H. Fukuhara;O. Nakahara;T. Izuta;R. Suda;Masamichi Takahashi;H. Sase;A. Takahashi;Hiroyasu Kobayashi;T. Ohizumi;T. Hakamata
自1983年以来，日本环境省在全国范围内进行了酸沉降调查。为了研究酸沉降对地表水的影响，我们使用非参数曼-肯德尔检验来找出 10 多年来从五个湖泊及其集水区（俱多乐湖：最北端；镰北湖：东京附近；井吉拉湖：中部；万龙湖：西部；以及鳗池湖：最南端）收集的数据中 pH、碱度和电导率 (EC) 的时间趋势。自20世纪90年代中期以来，伊吉拉湖水的pH值略有下降，这与流入该湖的河水的pH值和碱度呈下降趋势相对应。湖水和溪流的EC均呈显着上升趋势； % MathType!Translator!2!1!AMS LaTeX.tdl!TeX -- AMS-LaTeX! 也发现了相同的趋势% MathType!MTEF!2!1!+- % feaaeaart1ev0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX % garmWu51MyVXgatuuDJXwAK1uy0HwmaeHbfv3ySLgzG0uy0Hgip5wz % aebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qqaq % Fr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qq % Q8frFve9Fve9Ff0dmeaabaqaciGacaGaaeqabaWaaeWaeaaakeaaca % qGobGaae4tamaaDaaaleaacaaIZaaabaGaeyOeI0caaaaa!3B0A！ $$ {\text{NO}}^{ - }_{3} $$ 浓度。这些趋势显示了大气沉积导致酸化的证据，这是日本首次基于重要的长期趋势进行此类发现。伊吉拉湖位于名古屋附近的中京工业区以北约 40 公里处。 H+、nss-% MathType!Translator!2!1!AMS LaTeX.tdl!TeX 的年度沉积 -- AMS-LaTeX! % MathType!MTEF!2!1!+- % feaaeaart1ev0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX % garmWu51MyVXgatuuDJXwAK1uy0HwmaeHbfv3ySLgzG0uy0Hgip5wz % aebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qqaq % Fr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qq % Q8frFve9Fve9Ff0dmeaabaqaciGacaGaaeqabaWaaeWaeaaakeaaca % qGtbGaae4tamaaDaaaleaacaaI0aaabaGaaGOmaiabgkHiTaaaaaa!3BCC！ $$ {\text{SO}}^{{2 - }}_{4} $$ 和 % MathType!Translator!2!1!AMS LaTeX.tdl!TeX -- AMS-LaTeX！ % MathType!MTEF!2!1!+- % feaaeaart1ev0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX % garmWu51MyVXgatuuDJXwAK1uy0HwmaeHbfv3ySLgzG0uy0Hgip5wz % aebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qqaq % Fr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qq % Q8frFve9Fve9Ff0dmeaabaqaciGacaGaaeqabaWaaeWaeaaakeaaca % qGobGaae4tamaaDaaaleaacaaIZaaabaGaeyOeI0caaaaa!3B0A！伊吉拉湖的$$ {\text{NO}}^{ - }_{3} $$是所有沉积监测点中最高的，表明这是伊吉拉湖观察到的显着酸化的主要原因。尽管 EC 呈显着上升趋势，但在任何其他湖泊流域均未观察到表明酸化的显着趋势。检测到磐龙湖的 pH 值和碱度呈上升趋势，以及镰北湖的碱度呈上升趋势，但俱多乐湖和鳗池湖的 pH 值和碱度没有变化。
Since 1983, the Ministry of the Environment of Japan has conducted nation-wide acid deposition surveys. To investigate the effects of acid deposition on surface water, we used the nonparametric Mann–Kendall test to find temporal trends in pH, alkalinity, and electrical conductivity (EC) in more than 10 years of data collected from five lakes and their catchments (Lake Kuttara: northernmost; Lake Kamakita: near Tokyo; Lake Ijira: central; Lake Banryu: western; and Lake Unagiike: southernmost). The pH of Lake Ijira water has declined slightly since the mid-1990s, corresponding with the downward trends seen in the pH and alkalinity of the river water flowing into the lake. There were significant upward trends in the EC of both the lake and stream water; the same trends were also found for % MathType!Translator!2!1!AMS LaTeX.tdl!TeX -- AMS-LaTeX! % MathType!MTEF!2!1!+- % feaaeaart1ev0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX % garmWu51MyVXgatuuDJXwAK1uy0HwmaeHbfv3ySLgzG0uy0Hgip5wz % aebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qqaq % Fr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qq % Q8frFve9Fve9Ff0dmeaabaqaciGacaGaaeqabaWaaeWaeaaakeaaca % qGobGaae4tamaaDaaaleaacaaIZaaabaGaeyOeI0caaaaa!3B0A! $$ {\text{NO}}^{ - }_{3} $$ concentrations. These trends show evidence of acidification due to atmospheric deposition, and this is the first such finding in Japan based on significant long-term trends. Lake Ijira is located about 40 km north of the Chukyo industrial area near Nagoya. The annual depositions of H+, nss-% MathType!Translator!2!1!AMS LaTeX.tdl!TeX -- AMS-LaTeX! % MathType!MTEF!2!1!+- % feaaeaart1ev0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX % garmWu51MyVXgatuuDJXwAK1uy0HwmaeHbfv3ySLgzG0uy0Hgip5wz % aebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qqaq % Fr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qq % Q8frFve9Fve9Ff0dmeaabaqaciGacaGaaeqabaWaaeWaeaaakeaaca % qGtbGaae4tamaaDaaaleaacaaI0aaabaGaaGOmaiabgkHiTaaaaaa!3BCC! $$ {\text{SO}}^{{2 - }}_{4} $$, and % MathType!Translator!2!1!AMS LaTeX.tdl!TeX -- AMS-LaTeX! % MathType!MTEF!2!1!+- % feaaeaart1ev0aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX % garmWu51MyVXgatuuDJXwAK1uy0HwmaeHbfv3ySLgzG0uy0Hgip5wz % aebbnrfifHhDYfgasaacH8qrps0lbbf9q8WrFfeuY-Hhbbf9v8qqaq % Fr0xc9pk0xbba9q8WqFfea0-yr0RYxir-Jbba9q8aq0-yq-He9q8qq % Q8frFve9Fve9Ff0dmeaabaqaciGacaGaaeqabaWaaeWaeaaakeaaca % qGobGaae4tamaaDaaaleaacaaIZaaabaGaeyOeI0caaaaa!3B0A! $$ {\text{NO}}^{ - }_{3} $$ in Lake Ijira were among the highest of all deposition monitoring sites, suggesting that this is the main cause of the significant acidification observed in Lake Ijira. No significant trends suggesting acidification were observed in any of the other lake catchments in spite of the significant upward trends in EC. Upward trends in pH and alkalinity at Lake Banryu and upward trends in alkalinity at Lake Kamakita were detected, but no change in pH or alkalinity at Lake Kuttara and Lake Unagiike was observed.
影响因子：
64.8
作者：
J. Stoddard;D. Jeffries;A. Lükewille;T. Clair;P. Dillon;C. Driscoll;M. Forsius;M. Johannessen
通讯作者：
J. Stoddard;D. Jeffries;A. Lükewille;T. Clair;P. Dillon;C. Driscoll;M. Forsius;M. Johannessen