Research Study and Suggestion on the Regeneration of Tidal Flat Environment at Fujimae Tidal Flat in Nagoya Port

名古屋港藤前滩涂环境再生研究与建议

• 批准号: 14580600
• 负责人: TERAI Hisayoshi
• 金额: $ 2.5万
• 依托单位: CHUBU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14580600/
• 关键词: HUJIMAE TIDAL FLAT; ANOXIC WATER MASS; STRATIFICATION; METEOROLOGICAL TURBULENCE; NITRIFICATION; DENITRIFICATION; SULFATE REDUCTION; TIDAL FLAT ENVIRONMENT; MARINE ENVIRONMENT

There is a basin with 150m width, 400m length and 6m depth in the Fujimae tidal flat. Water in the basin is so strongly stratified during summer season that anoxic water is accumulated in the basin. But a strong turbulence such as a typhoon would spill out the basin water with poor dissolved oxygen into the surrounding tidal flat. In this study I estimated the effect of meteorological turbulence on the stratification of the basin water and also on the tidal flat environment. Another environmental problem in the Ise-Mikawa Bay is the persistence of poor oxygen environment in the bottom layer of more than half area of the Bay during summer.This environmental deterioration is due to the reclamation of tidal flat and shallow marine region. So that I have researched and monitored changes in water qualities after the reclamation of Chubu International Air Port Island (580ha) and Mae-Jima Island (130ha) at Tokoname shore, co-working with other research on the changes of bottom sediment qualit … More y and benthic fauna.From the results of observation at Fujimae basin on 22 August in 2002, it was confirmed that a meteorological turbulence by typhoon No.13 mixed the water column of the basin and resulted 10-15% of oxygen saturation which affected severe damage on the surrounding tidal flat environment. On the other hand, on 12 August, just after the typhoon No.10 approached nearest to Ise-Bay, no turbulence was observed at the basin. In this case, the typhoon passed through from Osaka-Bay to Hokuriku region and brought the southern wind which did not make large turbulence in the Ise-Bay.Sediment pore water was sampled before and after the low tide at Fujimae tidal flat in order to estimate microbial activities such as nitrification, de-nitrification, sulfate reduction and sulfur oxidation. Analysis of pore water showed that sulfate reduction became major microbial decomposition process in the tidal mud from spring to summer with increase of organic matter supply. Analysis of sediment pore water also showed NH_4+ decreases and PO_4^<3->increases after the low tide which suggested that ammonium oxidation and organic matter degradation should be stimulated during the low tideWater quality observations around the Air Port Island off Tokoname suggested a deterioration of marine environments after the reclamation of Air Port Island. In spite of the beginning of water column mixing at the middle of October in 2002, one station with a depth of 12m (St.K1) showed 50% of oxygen saturation at the bottom. But at the same period in 2003, oxygen saturation at two more stations with a depth of 12m (St.K2) and 15m (St.A10) decreased to 50%. From these environmental deterioration by the reclamation of Air Port Islands, it is strongly recommended to regenerate lost tidal flats or shallow marine regions in Ise and Mikawa Bay. Less

藤间潮滩有一个宽150米、长400米、深6米的盆地。在夏季，盆地中的水分层非常强烈，以至于缺氧的水积累在盆地中。但是，像台风这样的强烈湍流会将溶解氧气很少的盆地水溢出到周围的潮滩。在这项研究中，我估计了气象湍流对流域水的分层以及对潮滩环境的影响。Ise-Mikawa湾的另一个环境问题是夏季海湾一半以上区域的底层氧环境持续差，这种环境恶化是由于潮滩和浅海地区的围垦造成的。因此，我与其他研究人员合作，研究和监测了位于托克南海岸的中部国际航空港岛(580公顷)和Mae-Jima岛(130公顷)填海后水质的变化，并与其他研究人员一起研究了海底沉积物Quality…的变化2002年8月22日在藤间盆地的观测结果证实，13号台风的一次气象湍流使盆地水柱混合，造成10-15%的氧饱和度，对周围潮滩环境造成严重破坏。另一方面，8月12日，就在第10号台风接近伊势湾后不久，该盆地没有观察到湍流。在这种情况下，台风从大阪湾进入北国地区，并在伊势湾带来了南风，没有造成太大的湍流。为了评估硝化、反硝化、硫酸盐还原和硫磺氧化等微生物活性，在藤田潮滩退潮前后采集了沉积物孔隙水。对孔隙水的分析表明，从春季到夏季，随着有机质供应的增加，硫酸盐还原成为潮汐泥中主要的微生物分解过程。沉积物孔隙水分析还显示，退潮后NH_4+减少，PO_4~(3-)&gt；升高，提示退潮期间应刺激氨的氧化和有机物的降解。托克南机场岛周围的水质观测表明，机场岛填海后海洋环境恶化。尽管2002年10月中旬开始了水柱混合，但有一个深度为12m的站点(St.K1)的底部显示出50%的氧饱和度。但在2003年同期，又有两个深度为12米(St.K2)和15米(St.A10)的监测站的血氧饱和度下降到50%。鉴于这些因填海造岛而造成的环境恶化，强烈建议在伊势湾和三川湾重建失去的潮滩或浅海地区。较少

项目成果

Studies on the Marine Environmental Change

海洋环境变化研究

• 发表时间: 2004
• 期刊: Concerned mainly with Sediment Quality and Benthic Fauna surrounding Chubu Air Port Island. Pro-Natura Fund Report No.13
• 作者: Yatsuka Saijo;Akihiko Yagi;Maki Umemura;Hisayoshi Terai;Motohiro Kawase;Yasuo Matsukawa;Katsuyuki Sasaki.
• 通讯作者: Katsuyuki Sasaki.

寺井久慈, 平沢太郎: "多孔質光触媒体を用いた汚水処理における有機物分解と硝化作用の共存"中部大学応用生物学部紀要. 2. 25-28 (2003)

Kuji Terai，Taro Hirasawa：“使用多孔光催化剂进行废水处理中有机物分解和硝化的共存”，中部大学应用生物学系通报，2. 25-28 (2003)。

Hisayoshi TERAI: "EFFECT OF DEFORESTATION OF ALDER TREES ON METHANE FLUXES IN KUSHIRO WETLAND, HOKKAIDO, JAPAN"Verhandlungen International Vereinigung Limnologie. 29. (2005)

Hisayoshi TERAI：“日本北海道钏路湿地桤木砍伐对甲烷通量的影响”Verhandlungen International Vereinigung Limnologie。

多孔質光触媒体を用いた汚水処理における有機物分解と硝化作用の共存

多孔光催化剂废水处理中有机物分解与硝化共存

• 发表时间: 2003
• 期刊: 中部大学応用生物学部紀要 2
• 作者: 寺井久慈;平沢太郎
• 通讯作者: 平沢太郎

N.Goto, O.Mitamura, H.Terai: "PRODUCTION OF EXTRACELLULAR ORGANIC CARBON IN THE TOTAL PRIMARY PRODUCTION BY FRESHWATER BENTHIC ALGAE AT THE LITTORAL ZONE AND INFLOW RIVER OF LAKE BIWA"Verhandlungen International Vereinigung Limnologie. 29. (2005)

N.Goto、O.Mitamura、H.Terai：“琵琶湖沿岸带和流入河流的淡水底栖藻类在总初级生产中的细胞外有机碳的生产”Verhandlungen International Vereinigung Limnologie。