基于PSR模型的城市河流流域生态风险评价  

Ecological risk assessment of urban river basins based on PSR model

作　　者：刘志强 LIU Zhiqiang(Geologic Party No.243,CNNC,Chifeng Inner Mongolia 024000,China)

机构地区：[1]核工业二四三大队,内蒙古赤峰024000

出　　处：《北京测绘》2024年第2期206-210,共5页Beijing Surveying and Mapping

摘　　要：生态风险评价是生态环境保护和监测的重要方式,尤其对于城市河流流域,易发生洪涝灾害、泥石流滑坡等风险,生态风险评价是平衡生态环境和社会经济发展之间矛盾的必要措施。研究以水源充沛的赣州市章贡区为实例,结合自然状况遥感监测数据和社会发展指标数据构建了“压力-状态-响应”(PSR)生态风险评价模型,生成了章贡区PSR生态风险等级图,有效识别出了生态风险等级区,其中2020年PSR模型生态指数为0.865处于安全等级。研究思路和方法对同类型区域生态风险评价有一定的参考价值。Ecological risk assessment is an important way of ecological environment protection and monitoring,especially for urban river basins,which are prone to flood disasters,debris flow,and landslides.The ecological risks assessment is a necessary measure to balance the contradiction between ecological environment and socioeconomic development.Taking the well-watered Zhanggong District of Ganzhou City as an example,this paper combined remote sensing monitoring data of natural conditions and social development index data to construct the“pressure-state-response”(PSR)ecological risk assessment model.Based on this model,PSR ecological risk level map in Zhanggong District was generated effectively,and the ecological risks level zones were identified.Among these zones,the ecological index of the PSR model in 2020 is 0.865,which is at the security level.The research ideas and methods have certain reference values for the ecological risk evaluation of the same type of region.

关 键 词：“压力-状态-响应”模型 生态风险评价 指数指标 

分 类 号：P258[天文地球—测绘科学与技术]