历史性河流廊道是社会生态系统的组成部分,识别其历史文化景观(historic cultural landscape,HCL)的服务水平,划定HCL服务供给的空间范围并提供分区管控策略,对当代社会城市规划具有重要意义。以富春江历史性河流廊道为例,以诗词文本为...历史性河流廊道是社会生态系统的组成部分,识别其历史文化景观(historic cultural landscape,HCL)的服务水平,划定HCL服务供给的空间范围并提供分区管控策略,对当代社会城市规划具有重要意义。以富春江历史性河流廊道为例,以诗词文本为数据源,构建HCL总量历时性数据模型评价HCL总量;并在长时间序列视角下,以makima函数外插预测HCL服务值,通过HCL潜力模型估算HCL潜力。在此基础上,使用“总量-潜力”分布模型将研究区域划分为4种空间类型,并结合HCL的3项指标进行时序分析,提出分区管控策略。结果表明,富春江历史性河流廊道可分为:高总量-高潜力的核心区、高总量-低潜力的保护区、低总量-高潜力的更新区和低总量-低潜力的补充区。富春江历史性河流廊道HCL供给总体水平最高的空间集中在严子陵钓台、七里泷和桐君山周围的沿江区域。基于长时间序列视角,从HCL总量与潜力2个维度出发,构建HCL服务供给空间识别、预测与分类方法,为历史性河流廊道的HCL保护管理提供了明确、普适性的技术途径。展开更多
Characteristic directions of remanent magnetization of 38 samples from Upper Silurian Series (Hanxia Formation) along the Hexi Corridor passed fold test at a 99% confidence level. The corresponding paleopole is locate...Characteristic directions of remanent magnetization of 38 samples from Upper Silurian Series (Hanxia Formation) along the Hexi Corridor passed fold test at a 99% confidence level. The corresponding paleopole is located at 45.1°N, 5.5°E (A_(95)= 4.7°, κ=25.1), close to the Late Permian pole for this area (41.4°N, 358.6°E; A_(95)= 4.3°, κ=26.6). However, there appears an obvious difference between paleolatitudes for these two stages (6°±). Based on paleomagnetic data, it can be deduced that the Hexi Corridor had probably been the western extension of the North China Block by the time of Late Silurian and kept being tectonically mobile compared with the principal parts of the North China Block. In addition, paleomagnetic data reveal that the Hexi Corridor experienced a southward displacement of about 600 km during the Late Paleozoic Era.展开更多
文摘历史性河流廊道是社会生态系统的组成部分,识别其历史文化景观(historic cultural landscape,HCL)的服务水平,划定HCL服务供给的空间范围并提供分区管控策略,对当代社会城市规划具有重要意义。以富春江历史性河流廊道为例,以诗词文本为数据源,构建HCL总量历时性数据模型评价HCL总量;并在长时间序列视角下,以makima函数外插预测HCL服务值,通过HCL潜力模型估算HCL潜力。在此基础上,使用“总量-潜力”分布模型将研究区域划分为4种空间类型,并结合HCL的3项指标进行时序分析,提出分区管控策略。结果表明,富春江历史性河流廊道可分为:高总量-高潜力的核心区、高总量-低潜力的保护区、低总量-高潜力的更新区和低总量-低潜力的补充区。富春江历史性河流廊道HCL供给总体水平最高的空间集中在严子陵钓台、七里泷和桐君山周围的沿江区域。基于长时间序列视角,从HCL总量与潜力2个维度出发,构建HCL服务供给空间识别、预测与分类方法,为历史性河流廊道的HCL保护管理提供了明确、普适性的技术途径。
基金Project is jointly sponsored by President Foundation of Academia Sinica and NSF of U.S.A.
文摘Characteristic directions of remanent magnetization of 38 samples from Upper Silurian Series (Hanxia Formation) along the Hexi Corridor passed fold test at a 99% confidence level. The corresponding paleopole is located at 45.1°N, 5.5°E (A_(95)= 4.7°, κ=25.1), close to the Late Permian pole for this area (41.4°N, 358.6°E; A_(95)= 4.3°, κ=26.6). However, there appears an obvious difference between paleolatitudes for these two stages (6°±). Based on paleomagnetic data, it can be deduced that the Hexi Corridor had probably been the western extension of the North China Block by the time of Late Silurian and kept being tectonically mobile compared with the principal parts of the North China Block. In addition, paleomagnetic data reveal that the Hexi Corridor experienced a southward displacement of about 600 km during the Late Paleozoic Era.
