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From subsurface structures to functions and texture - linking virtual realities and experiments at the plot and hillslope scales

从地下结构到功能和纹理——在地块和山坡尺度上连接虚拟现实和实验

基本信息

批准号：
200781144
负责人：
Professor Dr.-Ing. Erwin Zehe
金额：
--
依托单位：
Helmholtz-Zentrum Potsdam - Deutsches GeoForschungsZentrum (GFZ)
依托单位国家：
德国
项目类别：
Research Units
财政年份：
2011
资助国家：
德国
起止时间：
2010-12-31 至 2014-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/200781144?language=en
关键词：
subsurface structures functions texture linking

项目摘要

This project will explore the interplay between soil water, tracer and soil heat budgets depending on the prevailing context and develop advanced approaches for their coupled treatment within the subsurface domains of an EFU (the least entity of the CAOS model). Based on an improved understanding of the fingerprints of vertical preferential flow in the water, mass and heat transport in the unsaturated zone we will derive suitable closure relations that account for these fingerprints in the unsaturated subsurface domain of an EFU during rainfall driven conditions. We will furthermore derive descriptions for water, mass and heat budgets in the unsaturated subsurface domain during energy driven conditions and derive the necessary constitutive relations that account for the effect of soil heterogeneity on storage of water, mass and energy based on virtual experiments. Next we will explore coupled water and heat transport in the saturated subsurface domain with special emphasis on groundwater surface water exchange and derive process descriptions of minimum adequate complexity. Furthermore we will contribute to an optimal combination of soil physical and geophysical methods for exploring near subsurface lateral structures at the hillslope scale in joined work task with Project F.

该项目将根据当前环境探索土壤水、示踪剂和土壤热收支之间的相互作用，并开发先进的方法，在EFU （CAOS模型的最小实体）的地下域中对它们进行耦合处理。基于对非饱和区水、质量和热输运的垂直优先流指纹的进一步理解，我们将推导出在降雨驱动条件下EFU非饱和地下区域中这些指纹的合适闭合关系。我们将进一步推导出能量驱动条件下非饱和地下域的水、质量和热量收支的描述，并推导出基于虚拟实验的考虑土壤异质性对水、质量和能量储存影响的必要本构关系。接下来，我们将探讨饱和地下域中的水和热耦合输运，特别强调地下水和地表水的交换，并得出最小复杂度的过程描述。此外，我们将在与项目F的联合工作任务中，为在山坡尺度上探索近地下横向结构的土壤物理和地球物理方法的最佳组合做出贡献。

项目成果

期刊论文数量（11）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Unravelling abiotic and biotic controls on the seasonal water balance using data-driven dimensionless diagnostics

DOI：
10.5194/hess-21-2817-2017
发表时间：
2017-06
期刊：
Hydrology and Earth System Sciences
影响因子：
6.3
作者：
S. P. Seibert;C. Jackisch;U. Ehret;L. Pfister;E. Zehe
通讯作者：
S. P. Seibert;C. Jackisch;U. Ehret;L. Pfister;E. Zehe

Ecohydrological particle model based on representative domains

基于代表域的生态水文粒子模型

DOI：
10.5194/hess-22-3639-2018
发表时间：
2018
期刊：
Hydrology and Earth System Sciences
影响因子：
6.3
作者：
Jackisch
通讯作者：
Jackisch

Variability of earthworm-induced biopores and their hydrological effectiveness in space and time

DOI：
10.1016/j.pedobi.2018.09.001
发表时间：
2018-11
期刊：
Pedobiologia
影响因子：
2.3
作者：
Anne-Kathrin Schneider;Tobias L. Hohenbrink;Arne Reck;A. Zangerlé;B. Schröder;E. Zehe;L. van Schaik
通讯作者：
Anne-Kathrin Schneider;Tobias L. Hohenbrink;Arne Reck;A. Zangerlé;B. Schröder;E. Zehe;L. van Schaik

A Lagrangian model for soil water dynamics during rainfall-driven conditions

降雨驱动条件下土壤水动态的拉格朗日模型