中国已经进入老龄化社会中国的人口老龄化具有速度快、差异大、高龄化趋势凸显等特征,给城市养老服务设施空间布局和社会福利保障带来新的挑战。河南省作为人口大省,人口老龄化程度加深,老年人口占比攀升,城乡养老差距大,郑州市作为河...中国已经进入老龄化社会中国的人口老龄化具有速度快、差异大、高龄化趋势凸显等特征,给城市养老服务设施空间布局和社会福利保障带来新的挑战。河南省作为人口大省,人口老龄化程度加深,老年人口占比攀升,城乡养老差距大,郑州市作为河南省省会,人口排名省内第一。基于POI的郑州市养老服务设施空间分布和利用效率分析研究以河南省郑州市为研究范围,充分利用城市养老服务设施的POI(Point of Interest)数据并发挥其准确性高、可用于空间分析等特征,对各类养老服务设施空间分布进行可视化。此外,结合各区老年人口数,从供需是否匹配的角度分析养老服务设施供给水平和养老需求,从而获得其利用效率以及供给平衡度,并基于上述两个指标,建立分类标准对各区进行分类。从而为郑州市各区养老功能服务设施配置布局和优化提供对策。展开更多
It is very common to design water supply system to adjust runoff. Thus it will not meet the practical needs if only the hydrologic drought in natural basin is studied. In practice the natural water balance and water d...It is very common to design water supply system to adjust runoff. Thus it will not meet the practical needs if only the hydrologic drought in natural basin is studied. In practice the natural water balance and water deficits must be researched, i. e. . the adjusting effects of the water supply sys- tem such as a reservoir should be considered, and the drought event be distinguished according to the special system. The problem of drought identification under adjusted runoff was investigated in this study. By considering water transfer during different periods, a method to distinguish hydrologic drought for the water supply system was developed, and a standard drought severity index SWDSI was proposed. The method has been applied in Pan Jiakou water supply system in China. From 1953 to 1997,a total of 14 hydrologic droughts were identified in the water supply system, among which there were 3 severe droughts, 6 moderate droughts and 5 light droughts. The results are in good agreement with the historic drought records.展开更多
文摘中国已经进入老龄化社会中国的人口老龄化具有速度快、差异大、高龄化趋势凸显等特征,给城市养老服务设施空间布局和社会福利保障带来新的挑战。河南省作为人口大省,人口老龄化程度加深,老年人口占比攀升,城乡养老差距大,郑州市作为河南省省会,人口排名省内第一。基于POI的郑州市养老服务设施空间分布和利用效率分析研究以河南省郑州市为研究范围,充分利用城市养老服务设施的POI(Point of Interest)数据并发挥其准确性高、可用于空间分析等特征,对各类养老服务设施空间分布进行可视化。此外,结合各区老年人口数,从供需是否匹配的角度分析养老服务设施供给水平和养老需求,从而获得其利用效率以及供给平衡度,并基于上述两个指标,建立分类标准对各区进行分类。从而为郑州市各区养老功能服务设施配置布局和优化提供对策。
基金Supported by National Natural Science Foundation of China ( No. 50579049) and Doctoral Special Foundationof China (No. 20040056060).
文摘It is very common to design water supply system to adjust runoff. Thus it will not meet the practical needs if only the hydrologic drought in natural basin is studied. In practice the natural water balance and water deficits must be researched, i. e. . the adjusting effects of the water supply sys- tem such as a reservoir should be considered, and the drought event be distinguished according to the special system. The problem of drought identification under adjusted runoff was investigated in this study. By considering water transfer during different periods, a method to distinguish hydrologic drought for the water supply system was developed, and a standard drought severity index SWDSI was proposed. The method has been applied in Pan Jiakou water supply system in China. From 1953 to 1997,a total of 14 hydrologic droughts were identified in the water supply system, among which there were 3 severe droughts, 6 moderate droughts and 5 light droughts. The results are in good agreement with the historic drought records.
