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Pore rigidity as an undervalued process in soil structure development
Soil and Tillage Research ( IF 6.1 ) Pub Date : 2024-09-05 , DOI: 10.1016/j.still.2024.106280
R. Horn , H. Fleige , J. Dörner , I. Zimmermann , O. Wendroth

Soil structure development can be described with tensile and shear processes as well as the further stabilization of interparticle bonds by hydraulic, chemical, biological, and physicochemical processes. The related shrink, swell or stress strain processes, as well as organic bindings and biological glueing processes, however, define the rigidity limits of soil structure and soil functions, which also coincide with defined boundaries that can be applied in modelling approaches. Aggregate formation due to volume separation occurs in soils depending on these interactions and undergo further strengthening or weakening processes with consequences for their rigidity. The goal of this review is to document these processes with corresponding results and to discuss some consequences for global change impacts on, e.g., plant growth and yield or mechanical strength. It is obvious that the hydraulic and mechanical processes have become neglected to some extent in the study of soil structure formation and aggregation, which caused remaining research gaps identified in this review. Consequently, there is an urgent need for a more precise determination of the rigidity limits of soils under various land use and climatic conditions to better predict or model climatic impacts but also the effect of soil management changes or amelioration impacts.

中文翻译:


孔隙刚性是土壤结构发育中被低估的过程



土壤结构的发展可以用拉伸和剪切过程来描述,也可以通过水力、化学、生物和物理化学过程进一步稳定颗粒间键来描述。然而,相关的收缩、膨胀或应力应变过程,以及有机结合和生物胶合过程,定义了土壤结构和土壤功能的刚度极限,这也与可应用于建模方法的定义边界相吻合。由于体积分离而导致的团聚体形成发生在土壤中,具体取决于这些相互作用,并经历进一步的强化或减弱过程,从而影响它们的刚度。本综述的目的是记录这些过程和相应的结果,并讨论全球变化对植物生长和产量或机械强度等影响的一些影响。很明显,在土壤结构形成和聚集的研究中,液压和机械过程在一定程度上被忽视了,这导致了本综述中确定的剩余研究空白。因此,迫切需要更精确地确定各种土地利用和气候条件下土壤的刚性极限,以更好地预测或模拟气候影响,以及土壤管理变化或改善影响的影响。
更新日期:2024-09-05
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