摘要
基于PSR模型,建立了深圳河河口(深圳侧)红树林湿地生态系统健康多因子评价指标体系,采用层次分析法确定各评价指标的权重,运用综合指数法对生态系统健康状况进行多因子综合评价。结果表明,深圳河河口红树林湿地的生态系统受到破坏,但结构尚算完整,对外界干扰的恢复力逐渐减退,优势湿地植物种群分布面积开始缩减,特有生物数量减少,生物和栖息地鸟类逐渐减少,部分湿地功能丧失,综合评价的健康指数为0.539,属于亚健康状态。提出通过调整当地社区社会经济活动和人工促进恢复力相结合的措施来提高生态系统稳定性。
A multiple-factor health assessment index system on estuarine wetland ecosystem is proposed based on the PSR model. An analytic hierarchy process is adopted to confirm the weight of every assessment factor. A comprehensive index is used to assess the estuarine wetland ecosystem health of Shenzhen River in China. The ecological environment of the estuarine wetland is deterioration, but the ecosystem structure is basically integrity. The restoring force is gradual regression. The dominant distribution area of plant species, biological quantity, organisms and birds begin to decrease, and the function of the ecosystem is regression. The comprehensive assessment index is 0. 539, which is in a sub-health state. So the pressure of the estuarine wetland ecosystem should be alleviated by adjustipg the social economic activities in this region, and ecological engineering for reinforcing the restoring force should be adjusted to improve the stability of the ecosystems.
出处
《中国农村水利水电》
北大核心
2009年第10期32-35,共4页
China Rural Water and Hydropower
基金
深圳市政府投资项目(SZCG2008010036)
