城市开敞空间的地表能量响应初探——以国际宜居城市为例  

Research of the Responses Between Urban Open Field and the Remote Sensing Surface Energy——Take International Livable Cities for Example

作　　者：姚武韬 蔡丹路 张春燕 肖寒 张晓鑫 关燕宁 

机构地区：[1]中国科学院遥感与数字地球研究所,北京100101 [2]中国科学院大学,北京100049

出　　处：《科研信息化技术与应用》2017年第3期89-103,共15页E-science Technology & Application

基　　金：基金项目:苏州战略规划-遥感生态专题(Y3H1630034)

摘　　要：城市开敞空间是城市的重要组成部分,其构成与分布影响城市遥感地表能量的平衡。本研究从城市生态系统层面,通过相对地表能量信息的定量分级方法,探讨宜居城市开敞空间地表能量的综合响应特征、作用与影响关系特征。从开敞空间的属性、体量、结构方面,分析其对城市地表能量空间分布的格局、状态、质量及其时空变化的作用与影响。结果表明:(1)在城市生态系统层面,城市开敞空间构成的属性、体量和结构是影响城市地表能量变化的基础;(2)相对于城市的实体空间,城市开敞空间的地表能量阈值较宽,数值波动幅度和频率的改变受环境影响更明显;(3)城市生态系统内部及其与环境架构的地表能量关系的平衡取决于一座城市开敞空间的格局、状态和质量。Urban open fields are highly relevant regions in identifying the land surface energy balance in terms of their composition and distribution in urban ecology analysis. The characteristics, responses and interrelationships between land surface energy and the urban open fields in Yi Chun, China are quantified to discuss their influences on urban ecosystem. Attributes, volume element types and spatial structures of the urban open fields are selected to analyze the spatial temporal changes of land surface energy balance. The following results are noticed： 1） Compositing urban open fields by different attributes, volume element types and spatial structures in different way is the key factor for the land surface energy balance changes; 2） Urban open space, compared with urban physical field, shows more land surface energy variability in both amplitude and frequency due to environment changes with a relatively wider value range; 3） Both the urban ecology and the land surface energy balance in one city depend on the composition, distribution and quantity of the urban open fields.

关 键 词：城市开敞空间 遥感 地表能量 城市生态系统 宜居城市 

分 类 号：F299.2[经济管理—国民经济]