Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 31300388 |
| 科尔沁沙地土壤水分时间序列分析及模拟研究 | |
| 姚淑霞 | |
| 主持机构 | 兰州城市学院 |
| 开始日期 | 2014 |
| 结束日期 | 2016 |
| 资助经费 | 200000(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 | Soil moisture, as the critical factor for the recovery of vegetation and agricultural production, it has obvious constraint function for the sandy ecological environmental protection and vegetation recovery and reconstruction in serious desertification area. The purpose of this project was intended to determine the variation of soil moisture dynamics in different type of land. Grassland, fixed dunes and mobile sand dune of Horqin Sand Land were selected as the research object. Soil water movement parameters of different land type were determined by experimental method, and their variation characteristics along with types of land, soil depths and soil physical and chemical properties. Secondly, based on the precipitation data of Horqin Sand Land in many years and the long-term monitoring of soil moisture in different depths for different land use types, we the temporal and spatial variations of precipitation and soil moisture were investigated by the time series analysis method, and obtain the response mechanism of soil moisture to precipitation. And finally, using the time series model,the soil moisture dynamics of the the Horqin Sand Land were simulated,which have contributed to tpovide heoretical basis to water resources development and utilization, and then to improve utilization efficiency of sandy water resources. |
| 中文关键词 | 降水 ; 土壤含水量 ; 土壤水分运动参数 ; 时间序列模型 ; 半干旱沙地 |
| 来源机构 | 兰州城市学院 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/346680 |
| 推荐引用方式 GB/T 7714 | 姚淑霞.科尔沁沙地土壤水分时间序列分析及模拟研究.2014. |
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