[ Objective] The research aimed to study index system of the environmental change and ecological security for a river basin based on DPSIR model. [Method] Based on considering each influence factor of the environmenta...[ Objective] The research aimed to study index system of the environmental change and ecological security for a river basin based on DPSIR model. [Method] Based on considering each influence factor of the environmental change and ecological security for a river basin, DPSIR model as framework, the basic framework, principle and related method of index system of the environmental change and ecological security for a river basin under influence of the multi-level development were put forward. [ ]Result] Index system of the environmental change and ecological se- curity for a river basin based on DPSIR model included driving force indicator, pressure indicator, state indicator, influence indicator and response indicator. Each indicator type also had many sub-indicators. [ Conclusion] The research provided theoretical support and method reference for as- sessment of the ecological security and execution of the ecological environment management for a river basin in China.展开更多
Establishing a reasonable evaluation index system is the basis and premise for the scientific evaluation of geographic national conditions. By analyzing the DPSIR model and its correlation and relation with the evalua...Establishing a reasonable evaluation index system is the basis and premise for the scientific evaluation of geographic national conditions. By analyzing the DPSIR model and its correlation and relation with the evaluation index system, the indexes for geographic national conditions were selected from the aspects of resources, ecology, environment, economy, society, etc to build an evaluation index system for geographic national conditions that consists of three hierarchies: index, criterion, and target levels. Furthermore, the index system was analyzed in terms of index integrity, low overlapping of elements, non-existence of isolated indexes, hierarchy of index system, etc., for the purpose of demonstrating that the DPSIR model-based evaluation index system for geographic national conditions meets the principles of index system establishment.展开更多
为系统分析人类活动对交通环境的影响,科学评估智慧交通发展水平,并准确识别城市交通运输行业在智慧化转型过程中的影响因素,基于DPSIR(drivers pressures state impact response)模型构建智慧交通发展评价指标体系,评估北京市2013—202...为系统分析人类活动对交通环境的影响,科学评估智慧交通发展水平,并准确识别城市交通运输行业在智慧化转型过程中的影响因素,基于DPSIR(drivers pressures state impact response)模型构建智慧交通发展评价指标体系,评估北京市2013—2022年智慧交通发展水平的动态变化,识别影响城市智慧交通发展的限制性因素。研究结果显示,1)2013—2022年北京市智慧交通综合发展水平持续上升,呈现整体改善趋势;2)北京市智慧交通驱动力和响应子系统的发展程度整体呈下降趋势,压力、状态和影响子系统的发展程度整体呈上升趋势;3)2013—2018年,影响北京市智慧交通发展的主要因素为路口电子警察安装数、高峰时段市民平均出行时耗等,2019—2022年,交通运输网络建设密度、人口密度、汽车社会公共停车泊位数成为主要因素。为此,提出加强智慧交通自身造血能力、提升供给侧水平以及推动城市交通向智能低碳转型等建议,以针对北京市智慧交通治理的短板因素进行改进。展开更多
文摘[ Objective] The research aimed to study index system of the environmental change and ecological security for a river basin based on DPSIR model. [Method] Based on considering each influence factor of the environmental change and ecological security for a river basin, DPSIR model as framework, the basic framework, principle and related method of index system of the environmental change and ecological security for a river basin under influence of the multi-level development were put forward. [ ]Result] Index system of the environmental change and ecological se- curity for a river basin based on DPSIR model included driving force indicator, pressure indicator, state indicator, influence indicator and response indicator. Each indicator type also had many sub-indicators. [ Conclusion] The research provided theoretical support and method reference for as- sessment of the ecological security and execution of the ecological environment management for a river basin in China.
基金Supported by the National Natural Science Foundation of China(41401462)the Independent Innovation Project of the Changjiang Institute of Survey,Planning,Design and Research(CX2015Z08)
文摘Establishing a reasonable evaluation index system is the basis and premise for the scientific evaluation of geographic national conditions. By analyzing the DPSIR model and its correlation and relation with the evaluation index system, the indexes for geographic national conditions were selected from the aspects of resources, ecology, environment, economy, society, etc to build an evaluation index system for geographic national conditions that consists of three hierarchies: index, criterion, and target levels. Furthermore, the index system was analyzed in terms of index integrity, low overlapping of elements, non-existence of isolated indexes, hierarchy of index system, etc., for the purpose of demonstrating that the DPSIR model-based evaluation index system for geographic national conditions meets the principles of index system establishment.
文摘为系统分析人类活动对交通环境的影响,科学评估智慧交通发展水平,并准确识别城市交通运输行业在智慧化转型过程中的影响因素,基于DPSIR(drivers pressures state impact response)模型构建智慧交通发展评价指标体系,评估北京市2013—2022年智慧交通发展水平的动态变化,识别影响城市智慧交通发展的限制性因素。研究结果显示,1)2013—2022年北京市智慧交通综合发展水平持续上升,呈现整体改善趋势;2)北京市智慧交通驱动力和响应子系统的发展程度整体呈下降趋势,压力、状态和影响子系统的发展程度整体呈上升趋势;3)2013—2018年,影响北京市智慧交通发展的主要因素为路口电子警察安装数、高峰时段市民平均出行时耗等,2019—2022年,交通运输网络建设密度、人口密度、汽车社会公共停车泊位数成为主要因素。为此,提出加强智慧交通自身造血能力、提升供给侧水平以及推动城市交通向智能低碳转型等建议,以针对北京市智慧交通治理的短板因素进行改进。