Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41301223 |
| 中蒙干旱半干旱区动态植被与地表水热相互作用的分析与模拟研究 | |
| 邱临静 | |
| 主持机构 | 中国科学院地球环境研究所 |
| 开始日期 | 2014 |
| 结束日期 | 2016 |
| 资助经费 | 260000(CNY) |
| 项目类别 | 青年科学基金项目 |
| 资助机构 | CN-NSFC（国家自然科学基金） |
| 语种 | 中文 |
| 国家 | 中国 |
| 英文简介 | The interaction between vegetation and land surface water/heat play an important role in the land-atmosphere interaction. The vegetation activity is strengthened by global warming in areas of the mid-high latitude in the Northern Hemisphere, which results in changes in water and heat balance on land surface through land-atmosphere interaction. However, there have been few studies regarding these changes in the Sino-Mongolian arid and semiarid region during the period of intensive global warming in the past 30 years. Therefore, this project aims to use observed land surface data to investigate the dynamic vegetation changes in the Sino-Mongolian arid and semiarid region, and the relationships between dynamic vegetation and land surface water/heat will be also discussed. In addition, to further understand the interaction between dynamic vegetation and the land surface water/heat, we will perform a series of numerical simulation experiments using Community Earth System Model (CESM). Firstly, the capability of the CESM to simulate the dynamic vegetation changes in the Sino-Mongolian arid and semiarid region will be evaluated using the Normalized Difference Vegetation Index (NDVI) data. Then the same climatology data will be used to drive the CESM to simulate the dynamic vegetation and land surface characteristics in the Sino-Mongolian arid and semiarid region using the prescribed CO2 concentration with or without Dynamic Global Vegetation Model (DGVM), and the simulated vegetation and the land surface water/heat characteristics will be analyzed to investigate the interaction between vegetation and land surface water/heat. This project will also investigate the distribution of C3 and C4 grassland presenting different carbon fixation pathways of plants, and the effect of C3 and C4 grassland on land surface water/heat will be studied. The findings of this project will contribute to understanding of the land-atmosphere interaction. |
| 中文关键词 | 动态植被 ; 地表水热 ; 相互作用 ; 数值模拟 ; 中蒙干旱半干旱区 |
| 来源机构 | 中国科学院地球环境研究所 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346695 |
| 推荐引用方式 GB/T 7714 | 邱临静.中蒙干旱半干旱区动态植被与地表水热相互作用的分析与模拟研究.2014. |
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