摘要
以2005-2021年长江三角洲地区水环境政策及发文部门为研究对象,将政策文本划分两个阶段,利用LDA模型分析了两阶段所包含的政策主题及其演化趋势,采用SNA模型建立了反映部门-部门和部门-主题关系的网络图,探究了部门之间以及政策主题与部门之间关系所呈现的特征和发展趋势。研究发现,政策主题从第一阶段的城市、农村、流域水污染及饮水安全,到第二阶段的河湖管理和地下水管理,既有延续加强也有创新突破;两阶段形成了若干发文小团体和典型的联合发文模式;核心部门和主题在两阶段具有稳定的对应关系,并且相关差异体现了政府跨区域环境治理理念和方式的进步。
Water environment policies in the Yangtze River Delta area and their issuing departments were collected from 2005 to 2021,and were divided into two phases.LDA modeling method was used to identify the topics contained in the policy of the two phases as well as their evolutionary trends.Then,SNA was employed to build the networks of department-department and department-topic,upon which the characteristics and development trends regarding the relationships between the departments and between the policy topics and the departments can be detected.The results showed that there were both reinforcement and innovation for the policy topics from urban,rural,basin water pollution and drinking water safety at the first phase to the emergence of river and lake management and groundwater management at the second phase.Several sub-groups among the issuing departments and typical joint issuing modes were observed during the two phases.It was also found that the core departments have a stable corresponding relation with the core topics,and the differences embody the progress of governments regarding the philosophy and approach to cross-regional environment regulation.By revealing the progress and trends of water environment policy in the Yangtze River Delta area,this study provides useful references for regional policy optimization and departmental collaborative governance.
作者
万欣
潘焌南
张子霞
张怡
WAN Xin;PAN Junnan;ZHANG Zixia;ZHANG Yi(School of Business,Hohai University,Nanjing 211100,China)
出处
《水利经济》
2023年第6期59-66,112,共9页
Journal of Economics of Water Resources
基金
国家自然科学基金青年科学基金项目(71802071)
教育部人文社会科学研究青年基金项目(18YJCZH166)。
作者简介
万欣(1985-),女,副教授,博士,主要从事区域经济与城市可持续发展研究。E-mail:wanxin@hhu.edu.cn。
