Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil Aggregates
【Objective】The study was conducted to explore the differences of stability of paddy soil aggregates developed from different parent materials in red soil area, with a view to providing a theoretical basis for the utilization and development of soil resources in red soil area.【Method】Six kinds of pad...
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Guangdong Academy of Agricultural Sciences
2022-03-01
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| Series: | Guangdong nongye kexue |
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| Online Access: | http://gdnykx.cnjournals.org/gdnykx/ch/reader/view_abstract.aspx?file_no=202203009 |
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| author | Peng GUO Liyan ZHU Kailou LIU Ze FU Xingjian ZHANG Zhaohui LUO Lidong BI |
| author_facet | Peng GUO Liyan ZHU Kailou LIU Ze FU Xingjian ZHANG Zhaohui LUO Lidong BI |
| author_sort | Peng GUO |
| collection | DOAJ |
| description | 【Objective】The study was conducted to explore the differences of stability of paddy soil aggregates developed from different parent materials in red soil area, with a view to providing a theoretical basis for the utilization and development of soil resources in red soil area.【Method】Six kinds of paddy soils with different parent materials developed in plough layer and plough bottom were collected from red soil area. Anhydrous alcohol, 0.1 mol/L NaOH solution, 0.002% Na2CO3 solution and 0.1 mol/L NaCl solution were selected as dispersions, and ultrapure water was used as control. The contents of water stable aggregates were determined by wet sieve method.【Result】The contents of water stable aggregates in plough layer was significantly higher than those in plough bottom of paddy soil with the same parent material. There was a significantly positive correlation between the content of water stable aggregate and the content of soil organic matter in paddy soil. After the four dispersions infiltrated the soil, the contents of water stable aggregates were as follows: anhydrous alcohol (86.31%) > Na2CO3 solution (39.03%) > NaCl solution (32.49%) > NaOH solution (10.70%).【Conclusion】For paddy soil in the same soil layer (plough layer), there are significant differences in the water stability of soil aggregates of different parent material types, which rank as: quartzite weathering material > acid crystalline weathering material > lake sediment > river sediment > quaternary red clay > argillaceous weathering material. For the paddy soil developed from the same parent material, the water stability of aggregates in plough layer is significantly stronger than that in plough bottom. Strong alkali environment can significantly reduce the water stability of paddy soil. |
| first_indexed | 2024-03-13T05:07:34Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1004-874X |
| language | English |
| last_indexed | 2024-03-13T05:07:34Z |
| publishDate | 2022-03-01 |
| publisher | Guangdong Academy of Agricultural Sciences |
| record_format | Article |
| series | Guangdong nongye kexue |
| spelling | doaj.art-1305745f91a94453b32b4120a1cc7de92023-06-16T06:42:06ZengGuangdong Academy of Agricultural SciencesGuangdong nongye kexue1004-874X2022-03-01493778510.16768/j.issn.1004-874X.2022.03.009202203009Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil AggregatesPeng GUO0Liyan ZHU1Kailou LIU2Ze FU3Xingjian ZHANG4Zhaohui LUO5Lidong BI6College of Agricultural Science and Engineering, Hohai University, Nanjing 210098, ChinaCollege of Agricultural Science and Engineering, Hohai University, Nanjing 210098, ChinaJiangxi Institute of Red Soil, Nanchang 330046, ChinaCollege of Agricultural Science and Engineering, Hohai University, Nanjing 210098, ChinaCollege of Agricultural Science and Engineering, Hohai University, Nanjing 210098, ChinaCollege of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Agricultural Science and Engineering, Hohai University, Nanjing 210098, China【Objective】The study was conducted to explore the differences of stability of paddy soil aggregates developed from different parent materials in red soil area, with a view to providing a theoretical basis for the utilization and development of soil resources in red soil area.【Method】Six kinds of paddy soils with different parent materials developed in plough layer and plough bottom were collected from red soil area. Anhydrous alcohol, 0.1 mol/L NaOH solution, 0.002% Na2CO3 solution and 0.1 mol/L NaCl solution were selected as dispersions, and ultrapure water was used as control. The contents of water stable aggregates were determined by wet sieve method.【Result】The contents of water stable aggregates in plough layer was significantly higher than those in plough bottom of paddy soil with the same parent material. There was a significantly positive correlation between the content of water stable aggregate and the content of soil organic matter in paddy soil. After the four dispersions infiltrated the soil, the contents of water stable aggregates were as follows: anhydrous alcohol (86.31%) > Na2CO3 solution (39.03%) > NaCl solution (32.49%) > NaOH solution (10.70%).【Conclusion】For paddy soil in the same soil layer (plough layer), there are significant differences in the water stability of soil aggregates of different parent material types, which rank as: quartzite weathering material > acid crystalline weathering material > lake sediment > river sediment > quaternary red clay > argillaceous weathering material. For the paddy soil developed from the same parent material, the water stability of aggregates in plough layer is significantly stronger than that in plough bottom. Strong alkali environment can significantly reduce the water stability of paddy soil.http://gdnykx.cnjournals.org/gdnykx/ch/reader/view_abstract.aspx?file_no=202203009soil physicssoil parent materialred paddy soilwater stability aggregateschemical stabilitycorrosion resistance |
| spellingShingle | Peng GUO Liyan ZHU Kailou LIU Ze FU Xingjian ZHANG Zhaohui LUO Lidong BI Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil Aggregates Guangdong nongye kexue soil physics soil parent material red paddy soil water stability aggregates chemical stability corrosion resistance |
| title | Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil Aggregates |
| title_full | Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil Aggregates |
| title_fullStr | Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil Aggregates |
| title_full_unstemmed | Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil Aggregates |
| title_short | Impacts of Different Parent Materials in Red Soil Region on Stability of Paddy Soil Aggregates |
| title_sort | impacts of different parent materials in red soil region on stability of paddy soil aggregates |
| topic | soil physics soil parent material red paddy soil water stability aggregates chemical stability corrosion resistance |
| url | http://gdnykx.cnjournals.org/gdnykx/ch/reader/view_abstract.aspx?file_no=202203009 |
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