Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
Liu, Dong1,2 ; Li, Mengyuan1,2; Yu, Rongda1,2; Li, Haoyu1,2; Shen, Yuguo1,2; Tian, Qian3; Bu, Hongling4; Huang, Chuanqin5; Tan, Wenfeng5
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| Interlayer organic matter within hydroxy-interlayered clay minerals enhances soil organic carbon stability under long-term organic fertilization | |
| Source Publication | APPLIED CLAY SCIENCE
 |
| ISSN | 0169-1317 |
| 2023-07-01 | |
| Volume | 239Pages:8 |
| DOI | 10.1016/j.clay.2023.106963 |
| Language | 英语 |
| WOS Research Area | Chemistry ; Materials Science ; Mineralogy |
| Abstract | The intercalation of organic matter in clay minerals is believed to be essential for soil carbon sequestration because nanoscale interlayer spaces can effectively protect organic matter from degradation. However, the lack of a direct method for the detection of interlayer organic matter has limited the identification of organic matter and the evaluation of the properties of organic matter-clay complexes. In this study, the association between the organic matter and hydroxy-interlayered clay minerals (HIMs) in red earth collected from Qiyang County (Hunan Province) in southeast China was investigated by combining X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM)-electron energy loss spectroscopy (EELS) methods. The presence of organic matter in the interlayer space of HIMs was confirmed by HRTEM-EELS for the first time, providing direct visible evidence of interlayer organic matter in the HIMs of red earth. Hydroxy-Al was identified as the interlayer hydroxy cation in the HIMs. The organic molecules were associated with Al-OH in the interlayered hydroxy-Al polymer and exhibited resistance to oxidation by H2O2. Organic fertilization increased the amount of organic matter on the external surface and in the interlayer space of the HIMs, implying the feasibility of enhanced carbon seques-tration in red earth. |
| Keyword | Soil mineralogy Hydroxy-interlayered clay minerals (HIMs) Intercalation of organic matter TEM-EELS Organic fertilization Carbon sequestration |
| WOS ID | WOS:000990751200001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/74222 |
| Collection | 中国科学院矿物学与成矿学重点实验室 |
| Corresponding Author | Liu, Dong; Huang, Chuanqin |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Ctr Excellence Deep Earth Sci, CAS Key Lab Mineral & Metallogeny,Guangdong Prov K, Guangzhou 510640, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Subtrop Agr, Lab Agroecol Proc Subtrop Reg, Changsha 410125, Peoples R China 4.Guangdong Univ Technol, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China 5.Huazhong Agr Univ, Key Lab Arable Land Conservat Middle & Lower Reach, Minist Agr, Wuhan 430070, Hubei, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Dong,Li, Mengyuan,Yu, Rongda,et al. Interlayer organic matter within hydroxy-interlayered clay minerals enhances soil organic carbon stability under long-term organic fertilization[J]. APPLIED CLAY SCIENCE,2023,239:8. |
| APA | Liu, Dong.,Li, Mengyuan.,Yu, Rongda.,Li, Haoyu.,Shen, Yuguo.,...&Tan, Wenfeng.(2023).Interlayer organic matter within hydroxy-interlayered clay minerals enhances soil organic carbon stability under long-term organic fertilization.APPLIED CLAY SCIENCE,239,8. |
| MLA | Liu, Dong,et al."Interlayer organic matter within hydroxy-interlayered clay minerals enhances soil organic carbon stability under long-term organic fertilization".APPLIED CLAY SCIENCE 239(2023):8. |
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