Oxygen diffusion in soils: Understanding the factors and processes needed for modeling
Oxygen is an important element for plant growth. Reducing its concentration in the soil affects plant physiological processes such as nutrient and water uptake as well as respiration, the redox potential of soil elements and the activity of microorganisms. The main mechanism of oxygen transport in t...
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| Lenguaje: | English |
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Instituto de Investigaciones Agropecuarias, INIA
2015
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oai:scielo:S0718-583920150003000052018-10-01Oxygen diffusion in soils: Understanding the factors and processes needed for modelingNeira,JoséOrtiz,MauricioMorales,LuisAcevedo,Edmundo Diffusion diffusion coefficient Fick’s laws, organic matter oxygen transport Oxygen is an important element for plant growth. Reducing its concentration in the soil affects plant physiological processes such as nutrient and water uptake as well as respiration, the redox potential of soil elements and the activity of microorganisms. The main mechanism of oxygen transport in the soil is by diffusion, a dynamic process greatly influenced by soil physical properties such as texture and structure, conditioning, pore size distribution, tortuosity and connectivity. Organic matter is a modifying agent of the soil’s chemical and physical properties, affecting its structure and the porous matrix, which are determinants of oxygen transport. This study reviews the theory of soil gas diffusion and the effect of soil organic matter on the soil’s physical properties and transport of gases. It also reviews gas diffusion models, particularly those including the effect of soil organic matter.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.75 suppl.1 20152015-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000300005en10.4067/S0718-58392015000300005 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Diffusion diffusion coefficient Fick’s laws, organic matter oxygen transport |
| spellingShingle |
Diffusion diffusion coefficient Fick’s laws, organic matter oxygen transport Neira,José Ortiz,Mauricio Morales,Luis Acevedo,Edmundo Oxygen diffusion in soils: Understanding the factors and processes needed for modeling |
| description |
Oxygen is an important element for plant growth. Reducing its concentration in the soil affects plant physiological processes such as nutrient and water uptake as well as respiration, the redox potential of soil elements and the activity of microorganisms. The main mechanism of oxygen transport in the soil is by diffusion, a dynamic process greatly influenced by soil physical properties such as texture and structure, conditioning, pore size distribution, tortuosity and connectivity. Organic matter is a modifying agent of the soil’s chemical and physical properties, affecting its structure and the porous matrix, which are determinants of oxygen transport. This study reviews the theory of soil gas diffusion and the effect of soil organic matter on the soil’s physical properties and transport of gases. It also reviews gas diffusion models, particularly those including the effect of soil organic matter. |
| author |
Neira,José Ortiz,Mauricio Morales,Luis Acevedo,Edmundo |
| author_facet |
Neira,José Ortiz,Mauricio Morales,Luis Acevedo,Edmundo |
| author_sort |
Neira,José |
| title |
Oxygen diffusion in soils: Understanding the factors and processes needed for modeling |
| title_short |
Oxygen diffusion in soils: Understanding the factors and processes needed for modeling |
| title_full |
Oxygen diffusion in soils: Understanding the factors and processes needed for modeling |
| title_fullStr |
Oxygen diffusion in soils: Understanding the factors and processes needed for modeling |
| title_full_unstemmed |
Oxygen diffusion in soils: Understanding the factors and processes needed for modeling |
| title_sort |
oxygen diffusion in soils: understanding the factors and processes needed for modeling |
| publisher |
Instituto de Investigaciones Agropecuarias, INIA |
| publishDate |
2015 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392015000300005 |
| work_keys_str_mv |
AT neirajose oxygendiffusioninsoilsunderstandingthefactorsandprocessesneededformodeling AT ortizmauricio oxygendiffusioninsoilsunderstandingthefactorsandprocessesneededformodeling AT moralesluis oxygendiffusioninsoilsunderstandingthefactorsandprocessesneededformodeling AT acevedoedmundo oxygendiffusioninsoilsunderstandingthefactorsandprocessesneededformodeling |
| _version_ |
1714205348777164800 |