Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 41472222 |
| 浅埋水位下降的温度效应及其对表生植被生态的影响 | |
| 乔晓英 | |
| 主持机构 | 长安大学 |
| 开始日期 | 2015 |
| 结束日期 | 2018 |
| 资助经费 | 810000(CNY) |
| 项目类别 | 面上项目 |
| 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 | Water level declines of shallow groundwater table has induced the regional heat island effect in the arid and semi-arid areas, where air temperature is much difference by day and night. It not only leads to redistribution of water and heat on surface energy balances system due to forming soil dry layer and even accelerates regional climate change,in the meantime,the negative effects on the surface vegetatition eco-system has been caused. However, groundwater has a regulate and control function on surface temperature and soil temperature and influence on vegetation ecology has much more complex dynamic process. This project, bases on the porous media fluid dynamics theory and theory of thermodynamics. combines the laboratory physical experiment, in-situ monitoring with numerical simulation methods. The study area chooses groundwater ecosystem of bottomland in Ordos basin. In this project we will analysis the soil temperature and surface temperature variation trend because of groundwater level declines of shallow groundwater table, and discuss the methods of soil moisture and heat parameters under the condition of temperature changes, build water-heat coupled model on the unsaturated zones,analysis the indexes and quantitative assessment method of surface soil and surface temperature field change impact on vegetation ecological succession. This research result is not only beneficial supplement to the relationship between groundwater environment and regional climate change. And also has an important theoretical and practical application value to restoration the groundwater dependent ecosystems in arid and semi-arid areas. |
| 来源机构 | 长安大学 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/345788 |
| 推荐引用方式 GB/T 7714 | 乔晓英.浅埋水位下降的温度效应及其对表生植被生态的影响.2015. |
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