KMS of Research Center for Eco-Environmental Sciences， CAS
| Role of hypobromous acid in the transformation of polycyclic aromatic hydrocarbons during chlorination | |
Liu, Quanzhen; Xu, Xiong; Fu, Jianjie ; Du, Yanjun; Lin, Lihua; Bai, Lu; Wang, Donghong
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| 2021-10-01 | |
| Source Publication | WATER RESEARCH
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| ISSN | 1085-3278 |
| Volume | 32Issue:18Pages:5455-5467 |
| Abstract | Impervious surfaces (IS) are widespread globally due to increasing urbanization, and relatively static carbon (C) and nitrogen (N) processes are usually expected in these soils. However, an understanding of how soil organic carbon (SOC) and soil organic nitrogen (SON) dynamics under IS in comparison with urban vegetation is still lacking. Here we used soil fractionation and stable isotopic analysis to examine C and N dynamics in IS soils and soils that were vegetated for 20-30 years in Guangzhou and Shenzhen, China. Soil samples from bare land (CK) and other land uses (grass, forest, and IS) were split into different chemical fractions. The C and N content, C:N ratio, delta C-13, delta N-15, C and N recalcitrant indices (RIC, RIN), and mean residence time (MRT) were analyzed. The results showed that soil C and N stocks increased in the first (20 years) as reflected in the enhanced labile (LP) and recalcitrant C pools (RP), but then stabilized or decreased after 30 years with the IS ages in both cities. IS had a lower SOC decomposition rate and thus resulted in 5-10-times longer MRT (259-465 years) than that in vegetated soils (39-55 years). The study showed that IS caused remarkable changes in soil C and N pools and turnover rates compared with vegetated lands. Our results are potentially useful for better understanding, predicting, and managing soil C dynamics under urbanization. |
| Department | 中国科学院饮用水科学与技术重点实验室 |
| Keyword | grass impervious surfaces SOC turnover urban forest delta C-13 and delta N-15 |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/46921 |
| Collection | 中国科学院饮用水科学与技术重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 4.Univ Chinese Acad Sci, Sch Environm, Hangzhou Inst Adv Study, Hangzhou 310024, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Quanzhen,Xu, Xiong,Fu, Jianjie,et al. Role of hypobromous acid in the transformation of polycyclic aromatic hydrocarbons during chlorination[J]. WATER RESEARCH,2021,32(18):5455-5467. |
| APA | Liu, Quanzhen.,Xu, Xiong.,Fu, Jianjie.,Du, Yanjun.,Lin, Lihua.,...&Wang, Donghong.(2021).Role of hypobromous acid in the transformation of polycyclic aromatic hydrocarbons during chlorination.WATER RESEARCH,32(18),5455-5467. |
| MLA | Liu, Quanzhen,et al."Role of hypobromous acid in the transformation of polycyclic aromatic hydrocarbons during chlorination".WATER RESEARCH 32.18(2021):5455-5467. |
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| Role of hypobromous （3069KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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