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Organic fertilizer reduced carbon and nitrogen in runoff and buffered soil acidification in tea plantations: Evidence in nutrient contents and isotope fractionations
Xie, Shaowen1; Yang, Fen2; Feng, Hanxiao2,4; Yu, Zhenzhen2,4; Liu, Chengshuai1,3; Wei, Chaoyang2; Liang, Tao2
2021-03-25
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume762Pages:10
Corresponding AuthorWei, Chaoyang(weicy@igsnrr.ac.cn)
AbstractCarbon (C) and nitrogen (N) inputs to farmland via fertilizer application are potential sources of C and N that influence soil acidification and water eutrophication. A pilot study was conducted to compare the effects of compound fertilizer and rapeseed cake organic fertilizer on C and N preservation in the soils and runoff of a tea plantation as well as the C and N isotopic fractionation in soils over the three annual cycles of fertilization and tea-leaf harvest. Overall, rapeseed cake organic fertilization effectively increased the pH, total organic matter, NH4-N and NO3-N in soils by 2.19-4.29%, 8.04-21.14%, 53.65-100.32% and 5.74-54.08%, respectively, but decreased NH4-N inputs in runoff by 10.36-25.12% and NO3-N inputs in runoff by 8.94-24.10% relative to the same rate of pure N in compound fertilizer. Before fertilization in February, the average delta C-13 and delta N-15 were -25.15 parts per thousand and 1.88 parts per thousand, while after a full year of fertilization and tea-leaf harvesting in October, the average soil delta C-13 and delta N-15 contents were -23.83 parts per thousand and -0.33 parts per thousand after compound fertilization and -26.22 parts per thousand and 1.64 parts per thousand after rapeseed cake organic fertilization, respectively, indicating the evident effects of fertilization on the isotopic fractionation in soil. In addition, the fractionation extent was positively associated with the fertilization rates under both fertilizers. However, the two fertilization types had different effects on the C and N isotope fractionations, with rapeseed cake organic fertilization contributing more to delta C-13 (21.07-81.80%) but less to delta N-15 (18.20-78.93%) and compound fertilization presenting the opposite results (1.88-46.18% and 53.82-98.12%, respectively). This study demonstrates that rapeseed cake organic fertilization can better preserve soil C and N pools while reducing their runoff in tea plantations, which may greatly hinder the regional soil acidification and water eutrophication trends. (C) 2020 Elsevier B.V. All rights reserved.
KeywordTea plantation Compound fertilizer Rapeseed cake organic fertilizer Runoff water Carbon and nitrogen isotopes
DOI10.1016/j.scitotenv.2020.143059
WOS KeywordMINERAL-NITROGEN ; GREEN TEA ; DYNAMICS ; LOSSES ; FIELD ; PHOSPHORUS ; MANURE ; IMPACT ; C-13 ; STABILIZATION
Indexed BySCI
Language英语
Funding ProjectState Key Research and Development Program of China Dual reductions of chemical fertilizer and pesticides in tea garden: evaluation of the environmental effects and modelling optimization[2016YFD0201208] ; State Key Research and Development Program of China[2018YFD080041] ; Science and Technology Planning Project of Guangdong Province, China[2017BT01Z176] ; Science and Technology Planning Project of Guangdong Province, China[2016TX03Z086] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200103083] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200301003]
Funding OrganizationState Key Research and Development Program of China Dual reductions of chemical fertilizer and pesticides in tea garden: evaluation of the environmental effects and modelling optimization ; State Key Research and Development Program of China ; Science and Technology Planning Project of Guangdong Province, China ; GDAS' Project of Science and Technology Development
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000607910300006
PublisherELSEVIER
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/136333
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWei, Chaoyang
Affiliation1.Guangdong Acad Sci, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Integrated Agroenvironm Pollut, Guangzhou 510650, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Inst Geochem, State Key Lab Environm Geochem, Guiyang 550081, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xie, Shaowen,Yang, Fen,Feng, Hanxiao,et al. Organic fertilizer reduced carbon and nitrogen in runoff and buffered soil acidification in tea plantations: Evidence in nutrient contents and isotope fractionations[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,762:10.
APA Xie, Shaowen.,Yang, Fen.,Feng, Hanxiao.,Yu, Zhenzhen.,Liu, Chengshuai.,...&Liang, Tao.(2021).Organic fertilizer reduced carbon and nitrogen in runoff and buffered soil acidification in tea plantations: Evidence in nutrient contents and isotope fractionations.SCIENCE OF THE TOTAL ENVIRONMENT,762,10.
MLA Xie, Shaowen,et al."Organic fertilizer reduced carbon and nitrogen in runoff and buffered soil acidification in tea plantations: Evidence in nutrient contents and isotope fractionations".SCIENCE OF THE TOTAL ENVIRONMENT 762(2021):10.
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