基于生境等价分析法的罗源湾填海生态损害评估

发布时间：2018-11-20 08:14

【摘要】：改进生境等价分析法(habitat equivalency analysis,HEA),推导HEA在填海应用中生态服务受损量与补偿量评估公式。以1990年与2004年罗源湾生态服务水平为基础,假定受损生境自然恢复所需时间为10 a,于2013年采取种植海草床方式进行修复,修复生境达到最大服务所需时间为3 a,计算罗源湾填海生态服务总受损量、修复生境单位面积补偿量及修复规模。结果表明:初级生产力、生物资源和环境容量的受损程度分别为30.73%、61.94%和54.36%,在3%的贴现率水平下,所需海草床面积为109.79km~2,且指标受损程度与修复规模呈正相关关系。参数灵敏度分析表明,补偿起始点越早,修复生境达到最大服务水平所需时间越短,所需修复规模越小;贴现率的选择对修复规模影响显著。这一结论可作为地方政府对罗源湾填海实施生态修复建设和生态补偿管理的技术依据,亦可为其他海洋生态损害评估提供参考。
[Abstract]:Improved habitat equivalence analysis method (habitat equivalency analysis,HEA), and derived the evaluation formula of ecological service damage and compensation in the application of HEA in reclamation. Based on the level of ecological services in Luoyuan Bay in 1990 and 2004, assuming that the natural recovery time of damaged habitats was 10 years, and restoring the damaged habitats by planting seagrass beds in 2013, the time required for the restoration of habitats to reach the maximum service level was 3 years. The total damage amount of reclamation ecosystem service, the compensation amount per unit area and the restoration scale of the habitat were calculated in Luoyuan Bay. The results showed that the damage degree of primary productivity, biological resources and environmental capacity were 30.731.94% and 54.36%, respectively. At the discount rate level of 3%, the required sea grass bed area was 109.79 km2. There was a positive correlation between the degree of damage and the scale of repair. Parameter sensitivity analysis showed that the earlier the compensation start point, the shorter the time needed to reach the maximum service level, and the smaller the restoration scale was, and the effect of discount rate on restoration scale was significant. This conclusion can be used as the technical basis for local government to carry out ecological restoration construction and ecological compensation management of Luoyuan Bay reclamation, and also to provide reference for other marine ecological damage assessment.
【作者单位】：中国人民大学环境学院;中国海洋大学经济学院;教育部人文社科重点研究基地中国海洋大学海洋发展研究院;
【基金】：国家社科基金项目(12BJY064) 教育部人文社科重点研究基地中国海洋大学海洋发展研究院资助项目(13JJD790032)
【分类号】：X55;X826

【参考文献】