PGIS在重庆堰塘系统保护规划中的应用研究

The Application of PGIS in Chongqing Pond System Planning

PGIS(参与式地理信息系统)能为数据匮乏地区的乡村规划提供有力的技术支持,但在国内PGIS在规划领域的应用范围比较局限。文章以重庆两江新区为研究区域,基于空间规划的三个阶段(探索、评价、决策),探索PGIS在参与式规划中的作用及影响因素。文章发现,参与者在规划不同阶段,特别在评价阶段,可发挥一定作用,且参与者识别范围受多种因素影响,导致识别范围约为850 m。因此,文章认为PGIS可重点应用到评价阶段,可基于区域特征来布置不同位置与半径的信息收集点,以弥补参与者识别范围的局限,通过参与者信息标记加深场地认知;同时部分可应用到决策阶段,结合使用者的偏好,辅助规划者做出正确决策。

PGIS(Participatory Geographic Information System)provides technical support for public participation especially in China’s countryside where relevant data is insufficient.At present the domestic application of PGIS in the planning field is very limited.Based on the three stages of spatial planning(exploration,evaluation and decision stage),this study explores the role of PGIS in participatory planning and influencing factors in the process with Liangjiang New District as a study case.It was found that participants could play a role in different stages of planning,especially in the evaluation stage.Local participation is affected by a variety of factors with an average recognition range within 850 meters.The study suggests that PGIS can be effectively applied to the evaluation stage in rural planning,and the narrow recognition range of participants can be compensated by appropriate density of sampling points based on regional characteristics.Information marked by participants can not only deepen the understanding of site problems and functions,but also partially facilitate the decision stage through additional information provided by users’preferences.