IMHE OpenIR  > 山地表生过程与生态调控重点实验室
Leaching is the dominant route for soil organic carbon lateral transport under crop straw addition on sloping croplands
Hua, Keke1,2; Zhu, Bo1
2018
Source PublicationPLANT SOIL AND ENVIRONMENT
ISSN1214-1178
EISSN1805-9368
Volume64Issue:7Pages:344-351
SubtypeArticle
AbstractFew field data sets are available that systematically measure soil organic carbon (SOC) transport via surface runoff, leaching and soil erosion under crop straw applications. Therefore, organic carbon (C) loss fluxes via the three routes were simultaneously observed from 2010 to 2012 based on a crop straw addition experiment. This study included three treatments: CK (no fertilizer); RSD (crop straw addition) and RSDNPK (crop straw addition combined with mineral fertilizers). As compared with CK treatment, annual dissolved organic C (DOC) loss caused by surface runoff under RSD and RSDNPK treatments decreased significantly (P < 0.05) by 302.8% and 294.2%. Similarly, corresponding organic C loss caused by soil erosion reduced sharply by 638.8% and 1227.3%. In contrast, corresponding annual DOC leaching fluxes increased significantly (P < 0.05) by 133.3% and 109.3%. Overall, the total fluxes of SOC transport under RSD and RSDNPK treatments decreased significantly (P < 0.05) by 132.3% and 184.1% compared with CK treatment (4975.7 +/- 1207.8 mg/m(2)). DOC leaching accounted for 70% and 77% of SOC transport under RSD and RSDNPK treatments. These results clearly show that leaching is the dominant route of SOC lateral transport under crop straw applications. Therefore, reduced DOC leaching is the crucial link to enhance SOC sequestration when crop straw is returned to sloping croplands.
Keywordhydrology route dissolved organic carbon loss crop straw returned fertilization experiment hillslopes
DOI10.17221/139/2018-PSE
Indexed BySCI
WOS KeywordMINERAL NITROGEN ; EROSION ; RUNOFF ; MATTER ; LOSSES ; IMPACT ; MANAGEMENT ; DYNAMICS ; MULCH
Language英语
Quartile3区
Funding ProjectNatural Science Foundation of China[41430750] ; Natural Science Foundation of Anhui Province[1608085QD78] ; Foundation of Anhui Academic of Agricultural Science[16A1028] ; Foundation of Anhui Academic of Agricultural Science[18C1033]
TOP
WOS Research AreaAgriculture
WOS SubjectAgronomy
WOS IDWOS:000435975300008
Funding OrganizationNatural Science Foundation of China ; Natural Science Foundation of Anhui Province ; Foundation of Anhui Academic of Agricultural Science
PublisherCZECH ACADEMY AGRICULTURAL SCIENCES
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/23338
Collection山地表生过程与生态调控重点实验室
Corresponding AuthorZhu, Bo
Affiliation1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Sichuan, Peoples R China
2.Anhui Acad Agr Sci, Soil & Fertilizer Res Inst, Hefei, Anhui, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Hua, Keke,Zhu, Bo. Leaching is the dominant route for soil organic carbon lateral transport under crop straw addition on sloping croplands[J]. PLANT SOIL AND ENVIRONMENT,2018,64(7):344-351.
APA Hua, Keke,&Zhu, Bo.(2018).Leaching is the dominant route for soil organic carbon lateral transport under crop straw addition on sloping croplands.PLANT SOIL AND ENVIRONMENT,64(7),344-351.
MLA Hua, Keke,et al."Leaching is the dominant route for soil organic carbon lateral transport under crop straw addition on sloping croplands".PLANT SOIL AND ENVIRONMENT 64.7(2018):344-351.
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