项目名称: 集成陆面过程模式中LUCC动力学模型的发展及应用示范研究
项目编号: No.41201097
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 地理学
项目作者: 房世峰
作者单位: 中国科学院地理科学与资源研究所
项目金额: 26万元
中文摘要: 如何耦合、集成自然-人文过程并开展其机理分析是陆面过程模拟研究中面临的关键科学问题之一。现有的陆面过程模型缺乏对人文过程和自然-人文耦合过程的表达,因而其模拟结果存在较大的不确定性。本项目拟选取土地利用/土地覆被变化(LUCC)作为自然-人文耦合过程的关联变量,发展集成陆面过程模式中的LUCC动力学模型,并将其与陆面过程模型EASS耦合,然后选择我国东部沿海区域作为典型研究区,利用集成陆面过程模型开展自然扰动与人类活动影响下LUCC、陆面蒸散发和显热通量等陆面过程的动态时空模拟及作用机理分析,初步区分(Partition)自然和人文要素的特征变量分别对这些过程的贡献率(Contribution)。本项目作为耦合自然-人文过程的集成陆面过程模型发展与应用研究的重要组成部分,将为全球变化背景下自然-人文过程集成模拟及综合分析提供新的研究思路和重要方法,也将为区域可持续发展提供决策支持。
中文关键词: 集成陆面过程模型;物联网;气候变化;土地覆被与土地利用变化;模型模拟
英文摘要: The integrated simulation and interactive mechanism analysis of the coupled nature-human processes is one of the key scientific problems in the topic of land surface processes simulation. Existing Land Surface Models (LSM) are short of expression of the humanistic and nature-human processes, so there're large uncertainties of the simulation results of them. In light of this, the coming study will choose Land-Use and Land-Cover Change (LUCC) as the relation variable of the nature-human processes. Firstly, based on existing typical LUCC models and the framework of the integrated land surface model, a new LUCC dynamics model oriented to the integrated land surface model would be developed, and it would be coupled with the land surface model EASS. Then it will take the coastal regions of Eastern China as the typical research area, using the new integrated land surface model to take the spatiotemporal dynamic simulation and interactive analysis of land surface processes under the natural disturbance and human activities, such as processes of LUCC, evapotranspiration and sensible heat flux. At last, Partition of contribution in these processes for different nature and human typical factors would be discussed based on the integrated simulation and comprehensive analysis. As the most important step in the coupling of na
英文关键词: Integrated Land Surface Model;Internet of Things;climate change;LUCC;model simulation