项目名称: 皖江城市带城市环境动态变化过程的识别研究
项目编号: No.41271545
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 天文学、地球科学
项目作者: 查良松
作者单位: 安徽师范大学
项目金额: 75万元
中文摘要: 人类活动和自然过程相互交织的系统驱动,不仅造成了陆地、海洋、大气的一系列大尺度生物物理变化,而且在某些局地的、区域的城市环境中,这种变化表现得尤为明显。这种特有的自然地理环境和社会、经济发展状况如何减缓和适应这种变化,是研究人类-自然耦合系统的重要领域。本课题以皖江城市带为研究区,以GIS为平台,建立土地利用/覆盖变化、人口、工业、碳排放、气温和降水、环境污染等集成数据库。利用多年的Landsat TM、ASTER等遥感数据反演地表温度,并用高密度自动气象站实测数据进行验证,建立城市环境时空变化序列。用RUSLE等模型分析该区域生态脆弱性;用大气扩散等模型计算该区域碳源/碳汇时空分布模式。利用GIS空间分析、时间序列分析、CeoCA、仿真分析模拟城市环境变化动态过程,探讨人类活动-自然环境耦合机理,为快速转变经济发展方式,建设资源节约型、环境友好型城市提供理论依据。
中文关键词: 动态过程识别;土地覆盖;碳排放;耦合机制;皖江城市带
英文摘要: The systematic driving of intertwined human activities and natural processes leads to a series of large-scale biophysical change for the land, ocean and atmosphere.Furthermore, those changes in some local and regional urban environment are particularly evident. How to mitigate and adapt to these changes for this peculiar natural geographic environment and socio-economic development? It's an important topic for studying human-nature coupling system. By selecting Wan-Jiang City Belt as study area, based on GIS platform, this project aims to construct an integrated database including land use/cover change, population, industry,carbon emission,environmental pollution,air temperature and precipitation. Land surface temperature will be retrieved by using multi-year satellite images such as Landsat and ASTER data and validation will be made by in-situ measurements from high-density automatic weather stations. The spatio-temporal changing series for urban environment will be established. Regional ecological vulnerability can be analyzed by RUSLE model. Spatio-temporal modes for regional carbon sources and carbon sinks can be derived from atmospheric dispersion model. Dynamic changing processes of urban environment will be simulated by applying spatial analysis function of GIS, time series analysis, CeoCA and simulation
英文关键词: Dynamic process to identify;Land cover;carbon emissions;coupling mechanism;Wan Jiang City Belt