Spatial and temporal variabilty of coupled mass and energy transport processes in soil

土壤中耦合质量和能量传输过程的时空变化

• 批准号: 371763-2010
• 负责人: Dyck, Miles
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=507636
• 关键词: Spatial; temporal; variabilty; coupled; mass

In cold, semi-arid regions, water flow and heat transport in frozen soils significantly influences the soil water and energy balance. For example, water from spring snowmelt may contribute to recharging soil moisture reservoirs important for ecosystem productivity and, depending on its heat content, may be re-frozen or aid in soil thawing. Understanding the complex interactions between and the influence of these water flow and heat transport processes on soil water and energy balances is key to assessing environmental risks associated with contaminants introduced into the soil and predicting the impacts of climate change on food production.

在寒冷、半干旱地区，冻土中的水流和热量传输显着影响土壤水和能量平衡。例如，春季融雪产生的水可能有助于补充对生态系统生产力很重要的土壤水分库，并且根据其热量含量，可能会被重新冻结或有助于土壤解冻。了解这些水流和热传输过程之间的复杂相互作用及其对土壤水和能量平衡的影响是评估与土壤中污染物相关的环境风险和预测气候变化对粮食生产影响的关键。