Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41505007 |
| 植被物候对半干旱区草地生态系统碳交换过程的影响及数值模拟 | |
| 杜群 | |
| 主持机构 | 中国科学院大气物理研究所 |
| 开始日期 | 2016 |
| 结束日期 | 2018 |
| 资助经费 | 210000(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 grassland ecosystem located in semiarid area is vulnerable to climate variability and human activities. Large annual variability of net ecosystem exchange (NEE) over this area has been observed. Plant phenology plays an important role in regulating annual variability of NEE. One promising avenue for better modeling of interannual variability of carbon exchange process is improved simulation of plant phenology. Based on long-term and continuous carbon fluxes measurement and remote sensing data, we investigate the effect of plant phenology.on interannual variability of carbon exchange process over grassland in semiarid area. The plant phenology variability and its controlling factors will be pointed out. Different land surface models which describe plant phenology with different schemes will be selected to simulate carbon exchange process over grassland ecosystem. The uncertainty of interannual variability of carbon fluxes caused by simulated plant phenology will be assessed. Plant phenology parameterized schemes will be improved based on further understanding of drivers on plant phenology. The feedbacks of carbon cycling on future climate change over grassland ecosystems will be discussed. |
| 中文关键词 | 植被物候 ; 碳通量 ; 草地生态系统 ; 涡动相关 |
| 来源机构 | 中国科学院大气物理研究所 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346964 |
| 推荐引用方式 GB/T 7714 | 杜群.植被物候对半干旱区草地生态系统碳交换过程的影响及数值模拟.2016. |
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