基于模糊物元模型的区域土地利用生态安全演变—以泉州市为例

运用PSR模型框架，构建区域土地利用生态安全评价指标体系，使用AHP法确定指标权重，采用模糊物元模型对泉州市2001年、2004年、2007年的土地利用生态安全状况进行评价．结果表明：泉州市土地生态系统受到较大的破坏，服务功能和生态结构有所退化，抵抗外界干扰的能力较差，生态问题较大，均处于预警四级．在评价年份中，泉州市土地利用生态安全水平呈上升趋势，但速度缓慢．利用模糊物元模型，计算样本与标准之间的欧氏贴近度，衡量土地利用生态安全水平，评价结果合理客观，具有很好的实用性．

THE EVOLUTION OF ECO- SECURITY OF REGIONAL LAND USE BASED ON THE FUZZY MATTER- ELEMENT MODEL -A CASE STUDY OF QUANZHOU CITY

The eco - security of land use in Quanzhou city for 2001, 2004, and 2007 was evaluated by the Fuzzy Matter - element Model which applies the AHP method for index weights. The evaluation index system of eco - security of regional land use was constructed under the frame of the PSR model. The results show that ecosystem of land in Quanzhou is destroyed to a great extent, and the service function and the ecological structure degenerate gradually. Therefore, the ability to resist the external disturbance is poor and ecology problem becomes severe. All of these issues are in the level four of early warning. In the three years that are evaluated, there is a slowly increasing trend in the level of land use eco- security in Quanzhou. Euclid approach degree between samples and the standard is calculated to weight the level of land use eco - security using the Fuzzy Matter - element Model, which gives the reasonable and objective evaluations and has high practicability.