Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41305103 |
| 干旱半干旱区大面积地膜覆盖对陆面过程及其区域气候影响的模拟研究 | |
| 杨启东 | |
| 主持机构 | 云南大学 |
| 开始日期 | 2014 |
| 结束日期 | 2016 |
| 资助经费 | 250000(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 | Plastic mulches are often used to improve agricultural production by suppressing soil evaporation in the vast arid and semi-arid regions. As a special anthropogenic land surface cover, plastic mulch evidently affects the surface albedo and prevents vapour exchange between the land surface and the atmosphere, and influences the land surface process, and then affects the regional chlimate. But these physical processes were not contained in the present land surface models. Therefore, simulations remarkably deviate from observations when land surface models are applied to areas with underlying plastic mulch covering, respectively the climate model simulations also generate large deviation. This program will anylsis the surface layer data observed on plastic mulch-coverd underlying to develop the parameterisation schemes and a common plastic mulch layer model, and then construct for land surface models contained plastic mulch layer to simulate the land surface process characteristics. And then the land surface model contained plastic mulch layer will coupled into the climate models, by numerial simulation and comparison method to study the effect of large area plastic mulch-cover on regional climate. The results will benefit for improving the land surface process simulation and evaluating the effect of the anthropogenic impacts on regional climate. |
| 中文关键词 | 陆面过程 ; 区域气候 ; 地膜覆盖 ; 干旱半干旱区 ; 数值模拟 |
| 来源机构 | 云南大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346668 |
| 推荐引用方式 GB/T 7714 | 杨启东.干旱半干旱区大面积地膜覆盖对陆面过程及其区域气候影响的模拟研究.2014. |
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