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Effects of soil aggregate stability on soil N following land use changes under erodible environment
Zhu, Guangyu1; Deng, Lei1,2; Shangguan, Zhouping1,2
2018-07-15
Source PublicationAGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
Volume262Pages:18-28
Corresponding AuthorDeng, Lei(leideng@ms.iswc.ac.cn) ; Shangguan, Zhouping(shangguan@ms.iswc.ac.cn)
AbstractSoil nitrogen (N) dynamics have considerable effects on the terrestrial carbon cycle, and land use changes could affect soil N through impacts on soil aggregate stability. This study selected nine sites including apple orchards of different ages and restored sites to explore the effects of soil aggregate stability on soil total N (STN), ammonium N (AN), and nitrate N (NN) following different stages of apple orchard on the Loess Plateau of China. The results showed that when compared with apple orchard sites, the restored sites had higher contents of STN and lower contents of AN and NN, but when compared with restored sites, inorganic-N storage played a more important role in the apple orchards. Following different stages of apple orchards, the STN, AN and NN contents and mean weight diameter (MWD) of soil aggregates were all improved. MWD had a negative effect on inorganic-N content at 10-30 cm soil depths but had a positive relationship with soil N at 0-10 cm soil depth. In addition, planting apple orchards destroyed soil aggregate stability in this erodible environment, but it could be restored soon after abandonment. Therefore, considering soil N and soil aggregate stability, it is feasible to plant apple trees in this area and we propose that the effects of trade-offs between soil aggregate stability and soil erosion on soil N in terraced agroecosystems should be a focus of future research.
KeywordAmmonium-N Apple orchard Land use change Nitrate-N the loess plateau
DOI10.1016/j.agee.2018.04.012
WOS KeywordHILLY LOESS PLATEAU ; ORGANIC-CARBON ; PHYSICOCHEMICAL PROPERTIES ; NITROGEN AVAILABILITY ; GREEN PROGRAM ; CHINA GRAIN ; FOREST ; EROSION ; STOCKS ; IMPACT
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41730638] ; National Natural Science Foundation of China[41501094] ; National Key Technology RD Program[2015BAC01B03] ; CAS Light of West China Program[XAB2015B03]
Funding OrganizationNational Natural Science Foundation of China ; National Key Technology RD Program ; CAS Light of West China Program
WOS Research AreaAgriculture ; Environmental Sciences & Ecology
WOS SubjectAgriculture, Multidisciplinary ; Ecology ; Environmental Sciences
WOS IDWOS:000433651000003
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54845
Collection中国科学院地理科学与资源研究所
Corresponding AuthorDeng, Lei; Shangguan, Zhouping
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Fanning Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Guangyu,Deng, Lei,Shangguan, Zhouping. Effects of soil aggregate stability on soil N following land use changes under erodible environment[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2018,262:18-28.
APA Zhu, Guangyu,Deng, Lei,&Shangguan, Zhouping.(2018).Effects of soil aggregate stability on soil N following land use changes under erodible environment.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,262,18-28.
MLA Zhu, Guangyu,et al."Effects of soil aggregate stability on soil N following land use changes under erodible environment".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 262(2018):18-28.
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