Silicon Cycling in Soils Revisited
Silicon (Si) speciation and availability in soils is highly important for ecosystem functioning, because Si is a beneficial element for plant growth. Si chemistry is highly complex compared to other elements in soils, because Si reaction rates are relatively slow and dependent on Si species. Consequ...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/2/295 |
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| author | Jörg Schaller Daniel Puppe Danuta Kaczorek Ruth Ellerbrock Michael Sommer |
| author_facet | Jörg Schaller Daniel Puppe Danuta Kaczorek Ruth Ellerbrock Michael Sommer |
| author_sort | Jörg Schaller |
| collection | DOAJ |
| description | Silicon (Si) speciation and availability in soils is highly important for ecosystem functioning, because Si is a beneficial element for plant growth. Si chemistry is highly complex compared to other elements in soils, because Si reaction rates are relatively slow and dependent on Si species. Consequently, we review the occurrence of different Si species in soil solution and their changes by polymerization, depolymerization, and condensation in relation to important soil processes. We show that an argumentation based on thermodynamic endmembers of Si dependent processes, as currently done, is often difficult, because some reactions such as mineral crystallization require months to years (sometimes even centuries or millennia). Furthermore, we give an overview of Si reactions in soil solution and the predominance of certain solid compounds, which is a neglected but important parameter controlling the availability, reactivity, and function of Si in soils. We further discuss the drivers of soil Si cycling and how humans interfere with these processes. The soil Si cycle is of major importance for ecosystem functioning; therefore, a deeper understanding of drivers of Si cycling (e.g., predominant speciation), human disturbances and the implication for important soil properties (water storage, nutrient availability, and micro aggregate stability) is of fundamental relevance. |
| first_indexed | 2024-03-09T05:44:54Z |
| format | Article |
| id | doaj.art-3646c9d769bf485c8fa6a78863e5cb84 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-09T05:44:54Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-3646c9d769bf485c8fa6a78863e5cb842023-12-03T12:22:11ZengMDPI AGPlants2223-77472021-02-0110229510.3390/plants10020295Silicon Cycling in Soils RevisitedJörg Schaller0Daniel Puppe1Danuta Kaczorek2Ruth Ellerbrock3Michael Sommer4Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, GermanyLeibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, GermanyLeibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, GermanyLeibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, GermanyLeibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, GermanySilicon (Si) speciation and availability in soils is highly important for ecosystem functioning, because Si is a beneficial element for plant growth. Si chemistry is highly complex compared to other elements in soils, because Si reaction rates are relatively slow and dependent on Si species. Consequently, we review the occurrence of different Si species in soil solution and their changes by polymerization, depolymerization, and condensation in relation to important soil processes. We show that an argumentation based on thermodynamic endmembers of Si dependent processes, as currently done, is often difficult, because some reactions such as mineral crystallization require months to years (sometimes even centuries or millennia). Furthermore, we give an overview of Si reactions in soil solution and the predominance of certain solid compounds, which is a neglected but important parameter controlling the availability, reactivity, and function of Si in soils. We further discuss the drivers of soil Si cycling and how humans interfere with these processes. The soil Si cycle is of major importance for ecosystem functioning; therefore, a deeper understanding of drivers of Si cycling (e.g., predominant speciation), human disturbances and the implication for important soil properties (water storage, nutrient availability, and micro aggregate stability) is of fundamental relevance.https://www.mdpi.com/2223-7747/10/2/295andosolsclay neoformationcrop yieldland use changemicro aggregate stabilityphytoliths |
| spellingShingle | Jörg Schaller Daniel Puppe Danuta Kaczorek Ruth Ellerbrock Michael Sommer Silicon Cycling in Soils Revisited Plants andosols clay neoformation crop yield land use change micro aggregate stability phytoliths |
| title | Silicon Cycling in Soils Revisited |
| title_full | Silicon Cycling in Soils Revisited |
| title_fullStr | Silicon Cycling in Soils Revisited |
| title_full_unstemmed | Silicon Cycling in Soils Revisited |
| title_short | Silicon Cycling in Soils Revisited |
| title_sort | silicon cycling in soils revisited |
| topic | andosols clay neoformation crop yield land use change micro aggregate stability phytoliths |
| url | https://www.mdpi.com/2223-7747/10/2/295 |
| work_keys_str_mv | AT jorgschaller siliconcyclinginsoilsrevisited AT danielpuppe siliconcyclinginsoilsrevisited AT danutakaczorek siliconcyclinginsoilsrevisited AT ruthellerbrock siliconcyclinginsoilsrevisited AT michaelsommer siliconcyclinginsoilsrevisited |