Recovery and Preservation technologies for the Environment of Tidal-Flat in the Ariake Sea

（1）在人工潮滩内进行现场观测，模拟潮滩内的物理、化学和生态系统，为有明海海岸环境的保护和恢复提供依据。外部气象和潮汐条件控制了潮下带至超沿岸的带的自然构造，潮下带至超沿岸的带的地形也是自然构造，这种地形条件保持了稳定的生境环境条件。(2)An在熊本港附近的潮汐带部署了一个自动气象站（AWS），以观测陆地和海面的相互作用。潮区底层土壤温度的日变化受潮汐周期的强烈控制。特别是世博会的启动时间对土壤的加热以及能量和CO2向大气的传输起着重要的作用。（3）分析潮滩形态的数值方法， ...更多信息 它们的沟道发育。应用准三维海洋环流模式POM和MEC模拟了有明海的海流和物质输运。（4）利用潮汐能，利用富氧海水淋洗和氧化底泥，提出了可持续恢复被还原性物质污染的滩涂的方法。通过室内批式试验、室内柱试验和野外柱试验，研究了底泥在柱试验中的淋溶和氧化作用对COD的去除率。（5）在潮滩中，硫的主要代谢是由异染色菌属（Allochromatium）和硫杆菌属（Thiobacillus）等既能在厌氧条件下生长，又能在好氧条件下生长的硫酸盐代谢菌进行的硫循环。16 S rDNA克隆分析结果表明，滩涂翻耕后，好氧菌取代硫酸盐代谢菌成为主要微生物; nirS基因分析结果表明，类硫杆菌数量增加。（6）通过对熊本平原和有明湾东南部晚更新世至全新世的大量岩芯样品、花粉/硅藻和放射性碳测年的分析，阐明了该地区的环境变迁。对有明湾底质和表层海水硅藻的分析表明，有明湾水体的富营养化开始于160-30年前。明确了有明海和八代海表层沉积物和水团的分布格局，并将这些特征作为两套数据库发布。（7）防止陆地水平侧的污染对于有明海/八代海的环境再生是重要的。对海岸沿着地区/两海流域地方政府进行了意识调查。在这些调查的基础上，我们提出了一个方案，以管理环境再生业务和地区激活业务的激活和收益的税收增加/财政加强收集的环境再生合作资金和地区经济活动，通过引入一个共同体货币与此一般。(8)To为了详细探测封闭海域的时空变化，本研究开发了两种地理信息学技术：（1）遥感和（2）地统计学。结果表明，该方法具有较高的估计精度，并阐明了年内海表温度的季节变化规律和时间变化规律。这些方法可以在数据稀少的地区绘制出25年来海表温度和营养盐的合理分布。少

(1)Field observation was conducted inside the artificial tidal flat to model the physical, chemical and ecological system in tidal flat for the preservation or recovery of the coastal environment in Ariake Sea. The external meteorological and tidal condition controls the sub-tidal lone to the supra littoral zone has been constructed naturally, and such topography from the sub-tidal zone to the supra littoral zone has been constructed naturally, and such topographical condition preserves a steady environmental condition for habitat.(2)An automated weather station (AWS) was deployed in the tidal zone near the Kumamoto Port to observe the land and sea-surface interaction. The diurnal variation of the bottom soil temperature in the tidal zone was strongly controlled by the tidal cycle. Especially the set-up time of the exposition plays an important role in the botton soil heating and the energy and CO2 transfer into the atmosphere.(3)Numerical methods for analyzing the form of tidelands an … More d their gullies were developed. Quasi-three dimensional ocean circulation model POM and MEC were applied to the simulation of current and material transport in the Ariake Sea.(4)The sustainable method to recover the tidal flat polluted by the reductive matters were developed, due to leaching out and oxidizing the matters of the bottom soil with the oxygen rich sea water using tidal energy. Through batch test and column test in laboratory and in field column test, the ratio of COD reduction due to leaching and oxidizing of the bottom soil in column tests.(5)Sulfur cycling by sulfate metabolizing bacteria such as Allochromatium and Thiobacillus, which can grow both in anaerobic and aerobic conditions, is the main metabolism in a tidal flat. After plowing the tidal flat, it is shown that aerobic bacteria become major microorganisms instead of sulfate metabolizing bacteria in clone analysis with 16S rDNA and number of Thiobaeillus-like bacteria increase in the analysis with nirS gene.(6)This study clarified the environmental changes based on analyses of many core samples, pollen/diatom, and radiocarbon dating in late Pleistocene to Holocene of Kumamoto Plain and the southeastern part of Ariake Bay. Also analysis of diatom from the bottom sediments and the surface seawater suggested that an eutrophic condition of water in Ariake Bay started at 160-30 years ago in each area. We made clear the distribution patterns of the surface sediments and water masses in Ariake and Yatsushiro Seas, and published these characteristics as 2 sets of database.(7)Prevention of pollution of the land level side is important for environmental reproduction of Ariake Sea / Yatsushiro Sea. The consciousness investigation were performed for an area along the shore / a basin range local governments of both seas. Based on these investigations, we suggested a scheme to manage environment reproduction business and an area activation business by activation and the yield of taxes increase / finance reinforcement of the collection of environmental reproduction cooperation money and regional economy activity by introduction of a community currency with this generally.(8)To detect spatio-temporal changes of a closed sea area in detail, two techniques of geoinformatics, (1)remote sensing and (2)geostatistics, have been developed in this study. High estimation accuracy of the proposed method was demonstrated, and seasonal change patterns of the sea surface temperature in a year and also temporal changes were clarified. These methods could draw appropriate distributions of sea surface temperature and nutritive salts during the 25 years for sparse data areas. Less