Reconstraction of Limestone Solution Model in Japan

日本石灰石溶液模型重构

• 批准号: 12680092
• 负责人: YOSHINO Kazuko
• 金额: $ 2.11万
• 依托单位: Hosei University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12680092/
• 关键词: solution of limestone; karst terrain; contents of Carbon Dioxite; water balance; 石灰岩; 溶食量; カルスト化過程; 二酸化炭素

Solution rate of the limestone tablets during the last 10 years were observed at the six stations (Asahikawa, Abukuma, Akiyoshidai, Shikoku, Ryugado and Minamidaito Island) in Japan. The 10 years total solution, rates were higher in B_2 horizon of soil than in the air 1.5 m above the ground at all stations. Especially, the total solution rates in B_2 horizon are extremely high at Akiyoshidai and Minamidaito: about 12 %. These values are roughly 4 times higher than these in the air.Inter-annual fluctuation of solution rates was also very large. When water deficits are high, the solution rates are clearly low. In a dry year, the solution rate in B_2 horizon is only 2 times higher than in the air.The CO_2 contents in soil were also examined at the all stations in 10 years. When water deficit is high, CO_2 content in soils becomes very small. However, after rainfall of 20 mm in a day, CO_2 content becomes extremely high. It is, therefore indicated that inter-annual fluctuation of solution rate is reflected by inter-annual fluctuation of water balance in soils.In Minamidaito, where is uplifted atoll, palaeo karst terrain can be used for calculation of ages, since the time when the island changed to uplift. That is, using solution rate, the formation model of karst terrain can be obtained, making use of relationship between time and palaeo water balance.

在日本的六个站点（旭川、阿武熊、秋吉台、四国、龙加多和南大东岛）观测了过去10年中石灰石片的溶解速率。各站10年总溶解速率在土壤B_2层高于1.5m高空。特别是在明吉大和南大东，B_2层的全溶解率极高，约为12%。溶解速率的年际波动也很大。当水分亏缺很高时，溶解速率明显很低。在干旱年份，B_2层的溶解速率仅为空气中的2倍。水分亏缺严重时，土壤CO_2含量很低。但一天20毫米的降雨量后，CO_2含量就变得非常高。因此，溶解速率的年际波动反映在土壤水分平衡的年际波动上，在南大渡隆起环礁，可以利用古岩溶地形计算岛屿隆起以来的年龄。即利用时间与古水量平衡的关系，利用溶解速率可以得到岩溶地形的形成模式。

项目成果

KASHIMA N. and UERUSHIBARA-YOSHINO K.: "Solution rate of limestone in Shikoku-Onogahara and Ryugado (in Japan)"Special Issue for the Retire of Prof. Kashima N.. 17-26 (2000)

鹿岛 N. 和 UERUSHIBARA-YOSHINO K.：“四国小野原和龙河道（日本）石灰石的溶解率”鹿岛 N. 教授退休特刊 17-26 (2000)

UERUSHIBARA-YOSHINO K. and KASHIMA N.: "Solution rate of limestone tablets in Shikoku Island (Japan)"Mitteilungen es Verbandes der deutchen Hohlen and Karsforscher e.v., Munchen. 46(1/2). 112-116 (2000)

UERUSHIBARA-YOSHINO K. 和 KASHIMA N.：“四国岛（日本）石灰石片的溶解率”Mitteilungen es Verbandes der deutchen Hohlen 和 Karsforscher e.v.，慕尼黑。

UERUSHIBARA-YOSHINO K.: "Karst terrain of coral raised islands, Minamidaito and Kikai in the Nansei Islands of Japan"Zeitschrift fur Geomorphologie, Germany. Suppl. Vol.131. 17-31 (2003)

UERUSHIBARA-YOSHINO K.：“日本南西群岛的珊瑚岛、南大岛和吉凯岛的喀斯特地形”德国地貌学杂志。

Kazuko URUSHIBARA-YOSHINO: "The Karstification of Uplifted Limestone Areas in Japan"地形(Transactions, Japanese Geomorphological Union). 22(3). 391-401 (2001)

Kazuko URUSHIBARA-YOSHINO：“日本隆起石灰岩地区的喀斯特作用”Terography（交易，日本地貌学联盟）22（3）391-401（2001）。

鹿島愛彦, 漆原和子: "四国大野ヶ原と龍河洞における石灰岩片の溶食率"鹿島愛彦教授退官記念論文集. 17-26 (2000)

鹿岛义彦、漆原和子：“四国小野原和龙河洞石灰岩碎片的侵蚀率”纪念鹿岛义彦教授退休论文集 17-26 (2000)。