3 ) ecological impact assessment : to emphasize impact analysis caused by proposal and mitigation and impact management . in this process , to identify and predict the likely environmental and other related effects of the proposal , establish the measures that are necessary to avoid , minimize or offset predicted adverse impacts and , where appropriate , to incorporate these into an environmental management plan or system . 4 ) environmental indicator system for eco - city an environmental indexes framework for new harbor city was established , which is composed of four hierarchical levels and three subsystems 本文主要从以下四个方面开展研究工作: 1 )从自然环境和社会环境方面调查规划区域的环境现状,简析芦潮港新城的布局规划方案; 2 )对规划区域的现状进行生态分析,包括区域生态系统的结构功能、生物多样性、湿地利用、景观格局、特殊生境及特有物种和生态敏感区的情况; 3 )分析评价芦潮港新城规划对生态环境的影响,着重分析工程建设期和城市运行期,新的居住区、商业公务区和工业区对生态环境的影响,以及开发前后的生态景观变化。