海岸带生态安全压力分析——厦门案例分析

Safety stress analysis on coastal ecosystem:A study case in Xiamen

以厦门海域为研究对象,调查总结出厦门海域生态所面临的7项自然生态安全压力和10项人为生态安全压力。在对所有生态安全压力的危害强度、范围和频次进行对比赋值的基础上,使用模型:生态安全压力值(S)=危害强度(I).危害范围(E).危害频次(F),和海域承受压力状态(SS)=承受生态安全压力值(Si).承受比重(wi),对各项生态安全压力的大小及厦门6个主要海域承受的生态安全压力大小进行评价。研究结果发现:厦门海岸带总体面临较为严重的生态压力,其中西海域和同安湾最为严重;生态安全压力主要来自海岸带工程建设和围垦造地,九龙江河口输入,台风、风暴潮。

Focusing on the coastal ecosystem of Xiamen： 7 natural eco-safety stressors （ESSs） and the 10 men-made ESSs effecting Xiamen coastal system and evaluate, all of the 16 ESSs from the intensity, extension, frequency were collected and studied. The magnitude of all of the ESPs and the situation of Xiamen＇s four main sea areas were computed under the ESPs with a quantitatively analysis model： stress （S） = Intensity （I） · Extension（ E）· Frequency （F） and the model： the stress state （ SS ） = the Pressure threatening the sea area （Si）, enduring proportion （ wi）, respectively. Based on the results above, it was found： ESS in Xiamen coast were relatively severe, especially in Western Sea and Tong＇ an Bay. The eco-safety stress of Xiamen coast are mainly from the coastal construction and reclamation, Jiulong River, the typhoon and storm tide.