威海西港人工鱼礁区生态系统健康评价

Ecosystem Health Assessment of Artificial Reef Area in Xigang,Weihai

综合考虑近海生态系统特点与人工鱼礁建设的功能,从海水水质、群落结构和生态系统功能三方面构建了人工鱼礁生态系统健康评价模型。基于对威海西港人工鱼礁区及对照区4个季度(2012年9月—2013年7月)海洋生态环境和渔业资源的综合调查结果,对威海西港人工鱼礁区的生态系统进行了健康评价。研究表明:威海西港人工鱼礁区及对照区的生态系统春季、夏季、秋季为较健康水平,冬季为亚健康水平;鱼礁区生态健康指数大于对照区,且差异极显著(P<0.01);鱼礁区生态系统健康综合指数为夏季>秋季>春季>冬季。综合分析认为,威海西港人工鱼礁区生态系统比对照区生态系统更稳定,但仍需开展长期的调查与监测进行验证。本研究结果对于人工鱼礁区的管理、保护和规划具有参考意义。

An ecosystem health assessment methodology based on analytic hierarchy process and synthetic index method was established for assessing health level of artificial reef areas.Based on the biological resource and environment survey from Sept.2012 to July 2013 in Xigang,it was shown that both artificial reef and control areas were at healthy level in spring,summer and autumn,and at sub-healthy level in winter.The ecosystem health index of artificial reef area was significantly higher than that of control area(P=0.009).The ecosystem health index changed in different seasons,summer,autumn,spring,then winter constitute the order from the highest to the lowest.According to the comprehensive analysis,the ecosystem health in the artificial reef area was much more stable than that of control area.Long term monitoring and surveying were needed in these areas.The research results were significantly referable to the management and protection of artificial reef areas.