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An attempt to make environmental impact assessment of artificial beach and coastal revetment, using biodiversity as indicator, and consideration of new approach in creating an artificial beach

以生物多样性为指标的人工海滩及海岸护岸环境影响评价的尝试及人工海滩建设新途径的思考

基本信息

批准号：
16510031
负责人：
HAGINO Yasunori
金额：
$ 0.77万
依托单位：
Natural History Museum and Institute, Chiba
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2005
项目状态：
已结题

项目摘要

In the present study, wide variety of plant and animal groups were investigated by several taxonomists, both in botany and zoology, in an artificial beach in Chiba-shi through all seasons. The results were compared with those of various environments in Tokyo Bay and an attempt to make environmental impact assessment in the artificial beach was made.Rather diverse environments did exist in the artificial beach :(1)In land part, plant communities such as planted wood, reed grassland and littoral grassland are recognized. In planted wood, naturalized plants were dominant and dead planting trees were distinct because of excess drying which was derived from lacking of mantle communities and sleeve communities. This drying also might be a factor of low diversity of insects and soil animals. Even in developed lands, reed grasslands, usually seen in estuarine tidal flats, appeared under favorable water condition ; in such reed grasslands, environment was wetter than in planted wood and biodive … More rsity also higher but naturalized species were conspicuous in inhabiting small animals.(2)Around high tide drift line, lower adjacent part to littoral grasslands, distinct environments occurred ; drifted Ulva around drift line was utilized by characteristic animals at this zone such as insects, mites and littoral oligochaetes.(3)In rocky intertidal zone on coastal revetment, diversity increased in the order of vertical concrete embankment, tetrapod and stone bond ; in particular on the large pebbles and drifted materials within stone bond, threatened species previously only known in estuarine tidal flats were observed, as well as distinct littoral soil animals.(4)On sandy and/or muddy bottom in intertidal zone, introduced shells increased in number and diversity was fairly poor. This is supposed to be related to the fact that amount of mud in this zone was less than that of estuary zone.Based on these results, when creating new artificial beach, important points to be taken into consideration are as follows : making plant communities which blocks sea breeze at least partiallys ; growing reed grasslands in upper intertidal zone ; stone bonds are preferable in making coastal revetment ; creating gentle slope part in foreshore that provides more muddy sedimentation. Less

在本研究中，各种各样的植物和动物群体进行了调查，由几个分类学家，在植物学和动物学，在一个人工海滩在千叶市通过所有的季节。结果表明，人工海滩的环境具有明显的多样性：（1）在陆地部分，主要有人工林、芦苇草地和沿岸的草地等植物群落;在人工林中，归化植物占绝对优势，由于缺乏覆盖层群落和袖套群落导致过度干燥，死树现象明显。这种干燥也可能是昆虫和土壤动物多样性低的一个因素。即使在发达的土地上，芦苇草地也是在良好的水分条件下出现的，通常出现在河口潮滩上，这种芦苇草地的环境比人工林和生物潜水的环境更潮湿 ...更多信息率也较高，但归化种在小动物栖息方面较为突出。（2）在潮涨潮线附近，靠近沿岸的草地的下部，形成了独特的生态环境，潮涨潮线附近的石莼被昆虫、螨类和沿岸的寡毛类等特有动物利用。(3)In在海岸护岸的岩石潮间带，多样性按垂直混凝土堤岸、四足动物和石结合物的顺序增加;特别是在石结合物内的大卵石和漂流物上，观察到以前仅在河口潮滩中已知的受威胁物种，以及独特的沿岸的土壤动物。(4)On在潮间带的桑迪和/或淤泥质底质中，引入的贝壳数量增加，多样性较差。根据研究结果，在新建人工海滩时，应注意营造至少部分阻挡海风的植物群落，在潮间带上部种植芦苇草，海岸护岸宜采用石护坡，人工沙滩应采用人工沙滩。在前滨形成缓坡部分，提供更多的泥质沉积。少

项目成果

期刊论文数量（30）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

千葉県の自然誌.別編3.千葉県動物写真集

千叶县自然史第3部分.千叶县动物照片集

DOI：
发表时间：
2005
期刊：
影响因子：
0
作者：
The foundation of Chiba prefecture for the study ofhistorical materials;Natural History of Chiba Prefecture.;Japan Wildlife Research Center;田中寛;自然環境研究センター;千葉県史料研究財
通讯作者：
千葉県史料研究財

Occurrence of a cyclomine weevil, Isonycholips gotoi, in an artificial beach at Mihama Ward, Chiba City.

千叶市美滨区人工海滩上出现了环胺象甲（Isonycholips Gotoi）。