舟山海岛潮间带氮循环关键环节微生物种群多样性及其对环境变化的响应机制

项目名称： 舟山海岛潮间带氮循环关键环节微生物种群多样性及其对环境变化的响应机制

项目编号： No.41276109

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 天文学、地球科学

项目作者： 胡宝兰

作者单位： 浙江大学

项目金额： 82万元

中文摘要： 舟山群岛是首个以海洋经济为主题的国家新区，海洋经济迅速发展，大量的污染物进入近岸海域，对该区域的生境造成严重的环境压力，破坏了对该区域原有的生物多样性。潮间带生态系统是海陆作用最为剧烈、生态结构最为复杂的区域之一，同时也是环境压力最大、污染类型最为丰富的区域。潮间带的氮素循环主要由微生物参与完成，包括氨氧化细菌和古菌、反硝化细菌、厌氧氨氧化菌等微生物种群。由于染污物进入潮间带，使原有氮循环微生物种群的多样性和活性发生了改变。本项目拟采用微生物学、化学、海洋学及生态学多学科交叉的技术手段，探明舟山海岛潮间带氮循环关键环节微生物种群的分布和多样性，并用生态响应原理研究不同氮循环微生物种群与活性变化对污染环境因子变化的响应与反馈，从微生物角度阐明舟山海岛潮间带的污染情况以及人类活动对该生态系统的影响，为舟山群岛的可持续发展及环境保护提供科学依据。

中文关键词： 潮间带；氮循环微生物；种群多样性；氮素污染；影响因子

英文摘要： The Zhoushan New Area is the first area focusing on marine economy.With the rapid developmenting of marine economy,large amount of pollutants into the coastal waters which caused severe environmental pressure in the region and destroyed the original biodiversity of the region. Intertidal ecosystem is one of region which has the most dramatic role of land and sea and the most complex ecological structure. It is also the region which has the most environmental pressure and richest pollutants type. The nitrogen cycle in intertidal zone is mainly performed by microorganisms including ammonia oxidizing archaea and bacteria, denitrifying bacteria, anaerobic ammonia oxidation and other microbial populations. As a result of pollutants entering into the intertidal zone, the original nitrogen cycle microbial population diversity and activity changed. The project intends to use the techniques of microbiology, chemistry, ecology, oceanography and multidisciplinary technology, make clear the distrubution and diversity of nitrogen cycle microorganism in intertidal zone, prove the mechanism of ecological response of different nitrogen cycle microbe on the change of the environment factor, explain the pollution condition and the influence of human activities on the ecosystem.Such a projech can provide a scientific basis for sus

英文关键词： Intertidal zone；Nitrogen cycle microorganism；Population diversity；Nitrogenous pollution；Impact factor