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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Estuarine acidification ： ウィキペディア英語版 Estuarine acidification Estuarine acidification is a decrease in the pH of coastal marine ecosystems, specifically those of estuaries. pH change in estuaries is more complicated than in the open ocean due to direct impacts from land run-off and coastal current dynamics. Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, caused by the absorption of carbon dioxide (CO2) from the atmosphere〔Ken Caldeira & Michael E. Wickett. "Oceanography: Anthropogenic carbon and ocean pH", ''Nature'', 425, 365 (25 September 2003)〕 (0.1 units over the last century).〔Orr, James C.; et al. (2005). "Anthropogenic ocean acidification over the twenty-first century and its impact on calcifying organisms.". ''Nature'' 437 (7059): 681–686〕 The ocean absorbs 30-40% of all CO2 emitted to the atmosphere;〔Richard A. Feely, Christopher L. Sabine, Kitack Lee, Will Berelson, Joanie Kleypas, Victoria J. Fabry, and Frank J. Millero. "Impact of Anthropogenic CO2 on the CaCO3 System in the Oceans", ''Science'', 16 July 2004: 305 (5682), 362-366〕 this increase in aqueous carbon dioxide causes a decline in the pH of the ocean surface.〔 As carbon dioxide combines with water, it releases protons (hydrogen ions), based on the following equation: :CO2 + H2O ↔ H2CO3 ↔ HCO3 + H+ ↔ CO3 + 2 H+ ==Causes of variable pH== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Estuarine acidification」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.