3D integrative modelling and upscaling of root water uptake (B04)

根部吸水量的 3D 集成建模和升级 (B04)

• 批准号: 40977241
• 金额: --
• 依托单位: Forschungszentrum Jülich
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/40977241?language=en
• 关键词: 3D; integrative; modelling; upscaling; root

The parallel 7 m long rhizotubes at the two sites of Selhausen allow for a quasi non-invasive monitoring of root growth and soil processes at the plot scale by minirhizotron cameras, GPR antennas, and an NMR slim-line tool. The derived mathematical description of small-scale heterogeneities caused by individual roots will - on the plot scale - be substituted by simpler effective parameters and relationships between soil water availability, root water uptake, and plant canopy status for agricultural crops. These will be implemented in the land surface model CLM.

平行的7米长的根管在两个网站的Selhausen允许一个准非侵入性的监测根的生长和土壤过程在情节规模的微型电子照相机，探地雷达天线，和NMR细线工具。推导出的数学描述的小规模的异质性所造成的个别根将-在地块尺度上-被取代的土壤水分供应，根系吸水，和植物冠层状态的农作物之间的关系更简单的有效参数。这些将在陆地表面模型CLM中实施。