Artificial humic substances improve microbial activity for binding CO2
Summary: Humic substances (HS) are an indicator of fertile soils, but more and more soils keep losing there humic matter. This is mostly due to anthropogenic over-cultivation. Artificial humic acid (A-HA) and artificial fulvic acid were synthesized from agricultural litter, with high similarity to n...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-06-01
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| Series: | iScience |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004221006155 |
| _version_ | 1818928306445090816 |
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| author | Chunyu Tang Yuelei Li Jingpeng Song Markus Antonietti Fan Yang |
| author_facet | Chunyu Tang Yuelei Li Jingpeng Song Markus Antonietti Fan Yang |
| author_sort | Chunyu Tang |
| collection | DOAJ |
| description | Summary: Humic substances (HS) are an indicator of fertile soils, but more and more soils keep losing there humic matter. This is mostly due to anthropogenic over-cultivation. Artificial humic acid (A-HA) and artificial fulvic acid were synthesized from agricultural litter, with high similarity to natural HS extracted from soil. These samples were added to black soils, and soil activity and nutrients availability were analyzed. The results demonstrate that the content of dissolved organic matter and total organic carbon (TOC) largely increased. The increase in TOC 28 days after addition of A-HA was 21.4 g/kg. This was much higher than the amount of the added A-HA carbon, which was 0.3 g/kg. As a “secondary” benefit, nutrient availability is increased, promoting the growth of plants.Using high-throughput sequencing we revealed that A-HA strongly supports the growth of photosynthetic Rubrivivax gelatinosus, which induced the carbon sequestration. Thus, application of artificial HS shows potential for biologically amplified carbon sequestration within black soils. |
| first_indexed | 2024-12-20T03:26:49Z |
| format | Article |
| id | doaj.art-75c8243a67b441f59ead2c6bc7b4fa4f |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-12-20T03:26:49Z |
| publishDate | 2021-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-75c8243a67b441f59ead2c6bc7b4fa4f2022-12-21T19:55:04ZengElsevieriScience2589-00422021-06-01246102647Artificial humic substances improve microbial activity for binding CO2Chunyu Tang0Yuelei Li1Jingpeng Song2Markus Antonietti3Fan Yang4Joint laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, ChinaJoint laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, ChinaJoint laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, ChinaMax Planck Institute of Colloids and Interfaces Department of Colloid Chemistry, 14476 Potsdam, Germany; Corresponding authorJoint laboratory of Northeast Agricultural University and Max Planck Institute of Colloids and Interfaces (NEAU-MPICI), Harbin 150030, China; School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; Corresponding authorSummary: Humic substances (HS) are an indicator of fertile soils, but more and more soils keep losing there humic matter. This is mostly due to anthropogenic over-cultivation. Artificial humic acid (A-HA) and artificial fulvic acid were synthesized from agricultural litter, with high similarity to natural HS extracted from soil. These samples were added to black soils, and soil activity and nutrients availability were analyzed. The results demonstrate that the content of dissolved organic matter and total organic carbon (TOC) largely increased. The increase in TOC 28 days after addition of A-HA was 21.4 g/kg. This was much higher than the amount of the added A-HA carbon, which was 0.3 g/kg. As a “secondary” benefit, nutrient availability is increased, promoting the growth of plants.Using high-throughput sequencing we revealed that A-HA strongly supports the growth of photosynthetic Rubrivivax gelatinosus, which induced the carbon sequestration. Thus, application of artificial HS shows potential for biologically amplified carbon sequestration within black soils.http://www.sciencedirect.com/science/article/pii/S2589004221006155chemistrysurface chemistryGeomicrobiologymicrobiologyagricultural science |
| spellingShingle | Chunyu Tang Yuelei Li Jingpeng Song Markus Antonietti Fan Yang Artificial humic substances improve microbial activity for binding CO2 iScience chemistry surface chemistry Geomicrobiology microbiology agricultural science |
| title | Artificial humic substances improve microbial activity for binding CO2 |
| title_full | Artificial humic substances improve microbial activity for binding CO2 |
| title_fullStr | Artificial humic substances improve microbial activity for binding CO2 |
| title_full_unstemmed | Artificial humic substances improve microbial activity for binding CO2 |
| title_short | Artificial humic substances improve microbial activity for binding CO2 |
| title_sort | artificial humic substances improve microbial activity for binding co2 |
| topic | chemistry surface chemistry Geomicrobiology microbiology agricultural science |
| url | http://www.sciencedirect.com/science/article/pii/S2589004221006155 |
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