Studies on acid fog, acid shock induced by melted snow and ecosystem of wetland in the Eastern Hokkaido, Japan

日本北海道东部酸雾、融雪酸冲击及湿地生态系统研究

• 批准号: 06453204
• 负责人: NISHIO Fumihiko
• 金额: $ 4.67万
• 依托单位: Hokkaido University of Education
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06453204/
• 关键词: acid fog; acid shock; acid rain; long range transportation; stem flow; through flow; 林外雨; 樹幹流; 窒素酸化物; 硫黄酸化物; 酸性化

The fog duration time in Kushiro is strongly indicating low in El Nino years since 1976. This is caused by the weakened nonsoon in summer, associated with the North Pacific high pressure system since it will become weaken over Japan during El Nino events.Acidity of rain and fog in the eastern Hokkaido has been increasing every year, and recently the very high acidity of fog has frequently appeared in the summer period, for example, June. These high acidity of fog could be caused by fog generated on the sea of Pacific Ocean and contained of acidic aerozol long-transported from the Asian continent of industrialized countries. In order to estimate the wetland ecosystem, and acidification of fog and rain, chemical properties of wet deposotion inside and outside the forest in the wetland were observed. We discuss the relationship between fog, rain frequency and chemical deposition.

久路的雾持续时间强烈表明自1976年以来厄尔尼诺年的低持续时间。这是由于夏季非季风减弱造成的，与北太平洋高压系统有关，因为厄尔尼诺事件期间它将在日本上空减弱。北海道东部的雨雾酸度每年都在增加，最近夏季雾的酸度经常很高，例如6月份。这些高酸度的雾可能是由太平洋海洋产生的雾造成的，其中含有长期从工业化国家的亚洲大陆运输来的酸性气雾剂。为了评价湿地生态系统和雾雨酸化，对湿地林内外湿沉积的化学性质进行了观测。讨论了雾、降雨频率与化学沉积的关系。

项目成果

F.Nishio, K.Matsuda and T.Ito: "Studies on concrete lcicles and effloresence derived from acid precipitation." Journal of Hokkaido University of Education. No.46, No.2. 25-40 (1996)

F.Nishio、K.Matsuda 和 T.Ito：“对酸沉淀产生的混凝土冰柱和风化的研究”。

西尾文彦・織田伸和: "北海道釧路地方の酸性降水の研究(I)" 釧路論集. 26号. 191-223 (1994)

西尾文彦和织田信和：“北海道钏路地区酸性降水的研究（一）”钏路论州第26期191-223（1994年）。

田中裕士・西尾文彦: "Airway Responsiveness of Adult Asthmatics during summer acid fo" International Medicine. 125. 200-210 (1996)

Yuji Tanaka 和 Fumihiko Nishio：“夏季酸性哮喘期间成人哮喘的气道反应”国际医学 125. 200-210 (1996)。

富沢日出夫・西尾文彦: "Chemical modification of Rain water by Alnus japonica Wetland Forest in Kiritapp Mire" Journal of Forest Research. 40巻2号(in press). (1997)

Hideo Tomizawa 和 Fumihiko Nishio：“Kiritapp Mire 中桤木湿地森林对雨水的化学改性”《森林研究杂志》第 40 卷，第 2 期（出版中）。

富沢日出夫・西尾文彦: "Chemical modification of Rain water by Alnus japonica Wetland Fovest in Kivitapp Mire" Journal of Fovest Research. 40巻2号(in press). (1997)

Hideo Tomizawa 和 Fumihiko Nishio：“Kivitapp Mire 中桤木湿地对雨水的化学改性”《Fovest 研究杂志》第 40 卷，第 2 期（出版中）。