Research on the Driving Mechanism of the Surficial Groundwater System Vulnerability in the Lower Liaohe River Plain

摘要：

The evaluation model for assessing the driving mechanism of surficial groundwater system vulnerability in the lower Liaohe river plain was built by canonical correlation analysis (CCA) method, and the results were verified. The result indicated that the driving mechanism of surficial groundwater vulnerability in lower Liaohe river plain could be described by two pairs of canonical comprehensive variable. The first pair of canonical comprehensive variable extracted fertilization intensity，population density，soil organic material content，index of water provision and demand and industry production value modulus from other influencing factors, In accordance，it extracted ammonia-nitrite-nitrates concentration in groundwater from independent variable groups; The second pair of canonical comprehensive variable extracted index of water provision and demand，industry production value modulus，aquifer thickness， vegetation cover index and water web density from other influencing factors, and extracted the departure value of groundwater ecological table from independent variable groups. On this basis, the function of every driving factor to surficial groundwater vulnerability in research area was assessed in quantity according to the factors’ loading value.

关键词： canonical correlations analysis Lower Liaohe River Plain groundwater system vulnerability driving mechanism

作者: SUN Caizhi LIU Yuyu YANG Jun

作者单位: Urban and environment college,Liaoning Normal University,Dalian 116029,Liaoning,China

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 1375-1379

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）