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Fate of nitrogen in overlying water with biochar addition to sediment in planted ditches
Cheng, Qianding1; Cheng, Hongguang1; Lu, Lu2; Pu, Xiao3; Wu, Zhenzhen1; Sun, Haixu1
2018-02-01
Source PublicationENVIRONMENTAL SCIENCE-PROCESSES & IMPACTS
ISSN2050-7887
Volume20Issue:2Pages:384-394
Corresponding AuthorCheng, Hongguang(chg@bnu.edu.cn)
AbstractBest 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.
DOI10.1039/c7em00445a
WOS KeywordLOW-GRADE WEIRS ; SANDY LOAM SOIL ; N2O EMISSIONS ; DRAINAGE DITCHES ; ATMOSPHERIC AMMONIA ; FERTILIZER ; NUTRIENT ; NITRATE ; CO2 ; AVAILABILITY
Indexed BySCI
Language英语
Funding ProjectNational 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]
Funding OrganizationNational Natural Science Foundation of China ; China Postdoctoral Science Foundation ; National Science and Technology Support Plan during the 12th Five-year Plan Period of China
WOS Research AreaChemistry ; Environmental Sciences & Ecology
WOS SubjectChemistry, Analytical ; Environmental Sciences
WOS IDWOS:000428987700011
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/57329
Collection中国科学院地理科学与资源研究所
Corresponding AuthorCheng, Hongguang
Affiliation1.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
Recommended Citation
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.
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