哈尔滨松北区城市湿地的生态安全分析

Analysis of Ecological Security of the Urban Wetland of Songbei District of Harbin

以哈尔滨松北区城市湿地为研究对象,选择10个指标,采用因子分析法和聚类分析法,研究了松花江发生污染事故前后城市湿地的生态安全状况.结果表明:发生污染前哈尔滨松北区城市湿地东区的生态安全程度最高,发生污染后中区的生态安全程度最低;西区的抗干扰能力较差.各主因子中以水因子的下降幅度最大,说明水污染直接影响了哈尔滨松北区城市湿地的生态安全.最后有针对性地提出了哈尔滨松北区城市湿地的生态安全对策.

The urban wetland of Songbei District of Harbin, which is in the north shore of the Songhua River, was researched. Ten indicators were selected and factor analysis and cluster analysis adopted to analyze the change of ecological security of urban wetland before and after the Songhua River pollution. The results show that the ecological security rate in the east area before pollution is higher and the rate in middle area after pollution is lower; the anti-jamming ability in west area is worst; the drop degree in water factor was biggest, which shows that the water pollution directly affects ecological security of urban wetland. Finally, reasonable countermeasures of ecological security were put forward.