Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient
Abstract Mineral preservation and microbial residue production are vital for the accumulation of mineral‐associated organic carbon (MAOC) in soils. However, their relative importance and interactive effects remain unclear. Here MAOC content and composition are analyzed in tandem with soil mineral an...
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| Format: | Article |
| Language: | English |
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Wiley
2024-03-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL108466 |
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| author | Erxiong Zhu Zongguang Liu Lixiao Ma Jianing Luo Enze Kang Ya Wang Yunpeng Zhao Juan Jia Xiaojuan Feng |
| author_facet | Erxiong Zhu Zongguang Liu Lixiao Ma Jianing Luo Enze Kang Ya Wang Yunpeng Zhao Juan Jia Xiaojuan Feng |
| author_sort | Erxiong Zhu |
| collection | DOAJ |
| description | Abstract Mineral preservation and microbial residue production are vital for the accumulation of mineral‐associated organic carbon (MAOC) in soils. However, their relative importance and interactive effects remain unclear. Here MAOC content and composition are analyzed in tandem with soil mineral and microbial attributes along a weathering gradient on a volcanic soil sequence. We find that MAOC content increases with increasing mineral weathering states, accompanied by increasing microbial contribution to MAOC. Mineral attributes rather than microbial physiological traits are strongly related to MAOC contents, suggesting that weathering‐enhanced mineral preservation capacity overrides microbial residue production in governing MAOC accumulation by increasing reactive minerals. Furthermore, mineral attributes have a strong interactive effect with microbial traits on MAOC accumulation and composition, likely related to increasing fungal abundance in the microbial community with increasing weathering. These findings highlight that mineral weathering may effectively boost persistent SOC in synergy with microbial conversion in the long term. |
| format | Article |
| id | doaj-art-a68ec86fe5794a449a94cec68461228e |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-a68ec86fe5794a449a94cec68461228e2025-08-20T01:51:57ZengWileyGeophysical Research Letters0094-82761944-80072024-03-01516n/an/a10.1029/2024GL108466Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering GradientErxiong Zhu0Zongguang Liu1Lixiao Ma2Jianing Luo3Enze Kang4Ya Wang5Yunpeng Zhao6Juan Jia7Xiaojuan Feng8State Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaState Key Laboratory of Vegetation and Environmental Change Institute of Botany Chinese Academy of Sciences Beijing ChinaAbstract Mineral preservation and microbial residue production are vital for the accumulation of mineral‐associated organic carbon (MAOC) in soils. However, their relative importance and interactive effects remain unclear. Here MAOC content and composition are analyzed in tandem with soil mineral and microbial attributes along a weathering gradient on a volcanic soil sequence. We find that MAOC content increases with increasing mineral weathering states, accompanied by increasing microbial contribution to MAOC. Mineral attributes rather than microbial physiological traits are strongly related to MAOC contents, suggesting that weathering‐enhanced mineral preservation capacity overrides microbial residue production in governing MAOC accumulation by increasing reactive minerals. Furthermore, mineral attributes have a strong interactive effect with microbial traits on MAOC accumulation and composition, likely related to increasing fungal abundance in the microbial community with increasing weathering. These findings highlight that mineral weathering may effectively boost persistent SOC in synergy with microbial conversion in the long term.https://doi.org/10.1029/2024GL108466mineral‐associated organic carbonmineral preservationmicrobial residue productionweathering gradientreactive mineralspersistent SOC pools |
| spellingShingle | Erxiong Zhu Zongguang Liu Lixiao Ma Jianing Luo Enze Kang Ya Wang Yunpeng Zhao Juan Jia Xiaojuan Feng Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient Geophysical Research Letters mineral‐associated organic carbon mineral preservation microbial residue production weathering gradient reactive minerals persistent SOC pools |
| title | Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient |
| title_full | Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient |
| title_fullStr | Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient |
| title_full_unstemmed | Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient |
| title_short | Enhanced Mineral Preservation Rather Than Microbial Residue Production Dictates the Accrual of Mineral‐Associated Organic Carbon Along a Weathering Gradient |
| title_sort | enhanced mineral preservation rather than microbial residue production dictates the accrual of mineral associated organic carbon along a weathering gradient |
| topic | mineral‐associated organic carbon mineral preservation microbial residue production weathering gradient reactive minerals persistent SOC pools |
| url | https://doi.org/10.1029/2024GL108466 |
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