水土保持通报2017，Vol.37Issue(5)：322-327,6.DOI:10.13961/j.cnki.stbctb.2017.05.054
基于SHAW模型的科尔沁草甸地冻融期土壤水热盐动态模拟研究
Dynamic Simulation Analysis of Soil Hydrothermal Salt of Horqin Meadow Ground in Freezing and Thawing Period Based on SHAW Model
摘要
Abstract
[Objective] To explore the dynamic changes of soil hydrothermal and salt in seasonal freezing and thawing period and its mechanism in order to provide some theoretical basis for soil salinization protection and administer in arid and semi arid areas.[Methods] Horqin meadowland was taken as a research area.Where the hydrothermal and salt observation data of meadow in the Aruga Eco-hydrological Experimental Station of Horqin left-wing post in November 2013-2014,were simulated and analyzed by SHAW model.[Results]The simulated results of soil heat and salt were better,and the root mean square error (RMSE) was 0.02～0.07.Due to the influence of meadow groundwater level,the model has a large deviation from the simulation results of water content,but its standard deviation and mean deviation are within allowable range.[Conclusion]The SHAW model can be used as the optimal model for the simulation of the study.It can compensate for the shortage of artificial observation data intermittent or missing,and can quantitatively predict the migration of hydrothermal salt in the vertical one-dimensional permafrost and free permafrost system under natural conditions.关键词
SHAW模型/季节性冻土/参数率定/模型评估Key words
SHAW model/seasonal frozen soil/parameter/model evaluation分类
农业科技引用本文复制引用
王驰,刘小燕,刘巧玲,刘廷玺..基于SHAW模型的科尔沁草甸地冻融期土壤水热盐动态模拟研究[J].水土保持通报,2017,37(5):322-327,6.基金项目
国家自然科学基金地区和重点资助项目“科尔沁沙地(沙丘—草甸地)冻融期土壤水热—盐耦合运移机理及其模拟方法”(51169012,51139002,51369016) （沙丘—草甸地）
教育部创新团队发展计划(IRT13069) （IRT13069）
内蒙古自治区草原英才产业创新创业人才团队、内蒙古农业大学寒旱区水资源利用创新团队项目(NDTD2010-6) （NDTD2010-6）
