| 赵冬梅,王义,杨诗秀,尚松浩,雷志栋.土壤冻结过程中潜水蒸发规律的模拟研究[J].水利学报,1990,21(6): |
| 土壤冻结过程中潜水蒸发规律的模拟研究 |
| Simulation on phreatic evaporation during soil freezing |
| |
| DOI： |
| 中文关键词: 土壤冻结，潜水蒸发，潜水蒸发折算系数，数值模拟。 |
| 英文关键词: Soil freezing phreatic evaporation converted coefficient of phreatic |
| 基金项目: |
| 赵冬梅 王义 杨诗秀 尚松浩 雷志栋 |
| 清华大学水利水电工程系 内蒙古自治区水利科学研究院 |
| 摘要点击次数: 5076 |
| 全文下载次数: 375 |
| 中文摘要: |
| 应用土壤冻结过程中水热耦合迁移模型模拟了内蒙河套灌区1990-1991土壤冻结期潜水 蒸发过程，模拟值与实测值吻合较好。在此基础上，对不同负积温、不同潜水埋深条件下的潜水 蒸发过程进行了模拟，并分析了埋深、负积温对冻结期潜水。蒸发总量的影响，提出了冻结期潜 水蒸发折算系数的概念。潜水蒸发折算系数与负积温无关，有助于对土壤冻结期潜水蒸发规律的 分析和应用。 |
| 英文摘要: |
| As an application of the model of simultaneous moisture and heat transfer during soil freezing,the process of phreatic evaporation during the freezing period from November 1990 to March 1991 in Hetao Irrigation Area,Inner Mongolia Municipality is simulated.The simulated values of soil water storage and phreatic evaporation agreed well with the observed data.Moreover,phreatic evaporation under different accumulated negative temperature and water table depth is simulated to analyze their effects on phreatic evaporation.Based on the analysis,the concept of converted coefficient of phreatic evaporation during the freezing period is proposed.The converted coefficient of phreatic evaporation is not related to accumulated negative temperature,and thus will make contribution to the analysis and application of the patterns about phreatic evaporation during soil freezing. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |