Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches
文献类型：期刊论文
| 作者 | Cheng, Qianding1; Cheng, Hongguang1; Lu, Lu2; Pu, Xiao3; Wu, Zhenzhen1; Sun, Haixu1 |
| 刊名 | ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 20期号:2页码:384-394 |
| ISSN号 | 2050-7887 |
| DOI | 10.1039/c7em00445a |
| 通讯作者 | Cheng, Hongguang(chg@bnu.edu.cn) |
| 英文摘要 | Best management practice (BMP) in drainage ditch systems is of high concern due to its importance in intercepting and removing pollution. Biochar has recently become an interesting option for agricultural pollution elimination, but knowledge is still limited on the fate of nitrogen (N) in drainage ditch systems with biochar added into the sediment. This isotope tracer study examined the effects of biochar addition into the sediment on the fate of inorganic N (N-15-NO3- and N-15-NH4+) in sediment microcosms through a 93 day incubation experiment. Four types of sediment microcosm (sediment only, sediment + biochar, sediment + plant, sediment + biochar + plant) were set to investigate N migration and transformation using N-15 pool dilution. The results indicated that 0.75% biochar addition significantly increased sediment pH and water holding capacity by 0.29 and 2.6%, respectively. Biochar addition suppressed sediment N-15-N2O emissions and decreased N-15 uptake by Calamagrostis angustifolia. From the N-15 distribution in different sediment layers, it was found that biochar may increase the risk of N leaching and speed up its downward mobility. Meanwhile, N-15 fate was affected by the planting of Calamagrostis angustifolia, exhibiting reduced leakage and residue in sediment. Vegetated microcosms suppressed N2O emissions, as the Calamagrostis angustifolia effectively competed with microbes and utilized N for its own growth and development. Therefore, Calamagrostis angustifolia could be beneficial in the removal of agricultural non-point source nitrogen pollution as a potential option for BMP. |
| WOS关键词 | LOW-GRADE WEIRS ; SANDY LOAM SOIL ; N2O EMISSIONS ; DRAINAGE DITCHES ; ATMOSPHERIC AMMONIA ; FERTILIZER ; NUTRIENT ; NITRATE ; CO2 ; AVAILABILITY |
| 资助项目 | National Natural Science Foundation of China[41471396] ; National Natural Science Foundation of China[41771496] ; National Natural Science Foundation of China[41701559] ; China Postdoctoral Science Foundation[2016LH0002] ; China Postdoctoral Science Foundation[2017M620890] ; National Science and Technology Support Plan during the 12th Five-year Plan Period of China[2015BAC02B02] |
| WOS研究方向 | Chemistry ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ROYAL SOC CHEMISTRY |
| WOS记录号 | WOS:000428987700011 |
| 资助机构 | National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; National Science and Technology Support Plan during the 12th Five-year Plan Period of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/57328]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Cheng, Hongguang |
| 作者单位 | 1.Beijing Normal Univ, Sch Environm, 19 Xinjiekouwai St, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Capital Normal Univ, Coll Resource Environm & Tourism, Beijing 100048, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Qianding,Cheng, Hongguang,Lu, Lu,et al. Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches[J]. ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,2018,20(2):384-394. |
| APA | Cheng, Qianding,Cheng, Hongguang,Lu, Lu,Pu, Xiao,Wu, Zhenzhen,&Sun, Haixu.(2018).Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches.ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS,20(2),384-394. |
| MLA | Cheng, Qianding,et al."Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches".ENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS 20.2(2018):384-394. |
入库方式： OAI收割
来源：地理科学与资源研究所
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