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Soil Carbon Fractions in Response to Long-Term Crop Rotations in the Loess Plateau of China
Fu, Xin1; Wang, Jun1; Sainju, Upendra M.2; Liu, Wenzhao3
2017-05-01
Source PublicationSOIL SCIENCE SOCIETY OF AMERICA JOURNAL
ISSN0361-5995
Volume81Issue:3Pages:503-513
Corresponding AuthorWang, Jun(wangj@nwu.edu.cn)
AbstractDiversified crop rotations may enhance C fractions and soil quality by affecting the quality and quantity of crop residue returned to the soil compared with monocropping and fallow. We evaluated the effect of 30-yr-old diversified crop rotations on soil C fractions at 0-to 15-, 15-to 30-, and 0-to 30-cm depths in the Loess Plateau of China. Crop rotations were continuous winter wheat (Triticum aestivum L.) (W); 3-yr rotations of corn (Zea mays L.)-winter wheat-winter wheat-millet (Eleusine coracana L.) (CWWM), pea (Pisum sativum L.)-winter wheatwinter wheat-millet (PWWM), and sainfoin (Onobrychis viciifolia Scop.)winter wheat-winter wheat-sainfoin (SWWS); 4-yr rotation of pea-winter wheat-winter wheat-corn (PWWC); and 8-yr rotation of alfalfa (Medicago sativa L.) (4 yr)-potato (Solanum tuberosum L.) (1 yr)-winter wheat (3 yr) (A4PoW3). A fallow (F) treatment was also included for comparison. Carbon fractions were soil organic C (SOC), particulate organic C (POC), potential C mineralization (PCM), and microbial biomass C (MBC). At all depths, SOC and POC were greater in A4PoW3 than F, W, and PWWC. The PCM and MBC were greater with SWWS than most other crops rotations. Soil C fractions increased linearly with increased belowground crop residue returned to the soil. Both SOC and POC increased linearly with increased rotation length. All C fractions were also correlated with mean annualized crop grain yield. Diversified crop rotations with increased belowground residue production enhanced soil C sequestration and microbial biomass and activity as well as crop yield compared with monocropping.
DOI10.2136/sssaj2016.04.0122
WOS KeywordORGANIC-MATTER FRACTIONS ; NORTHERN GREAT-PLAINS ; MICROBIAL BIOMASS ; NITROGEN MINERALIZATION ; ENZYME-ACTIVITIES ; TILLAGE SYSTEMS ; ROOT BIOMASS ; SEQUESTRATION ; MANAGEMENT ; DYNAMICS
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31570440] ; National Natural Science Foundation of China[31270484] ; International Scientific and Technological Cooperation and Exchange Project of Shannxi Province, China[2015KW-026] ; Innovation Funds of Graduate Programs, Northwest University[YZZ13006]
Funding OrganizationNational Natural Science Foundation of China ; International Scientific and Technological Cooperation and Exchange Project of Shannxi Province, China ; Innovation Funds of Graduate Programs, Northwest University
WOS Research AreaAgriculture
WOS SubjectSoil Science
WOS IDWOS:000408494400008
PublisherSOIL SCI SOC AMER
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61833
Collection中国科学院地理科学与资源研究所
Corresponding AuthorWang, Jun
Affiliation1.Northwest Univ Xian, Coll Urban & Environm Sci, Xian 710127, Shaanxi, Peoples R China
2.USDA ARS, Northern Plains Agr Res Lab, 1500 North Cent Ave, Sidney, MT 59270 USA
3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Peoples R China
Recommended Citation
GB/T 7714
Fu, Xin,Wang, Jun,Sainju, Upendra M.,et al. Soil Carbon Fractions in Response to Long-Term Crop Rotations in the Loess Plateau of China[J]. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,2017,81(3):503-513.
APA Fu, Xin,Wang, Jun,Sainju, Upendra M.,&Liu, Wenzhao.(2017).Soil Carbon Fractions in Response to Long-Term Crop Rotations in the Loess Plateau of China.SOIL SCIENCE SOCIETY OF AMERICA JOURNAL,81(3),503-513.
MLA Fu, Xin,et al."Soil Carbon Fractions in Response to Long-Term Crop Rotations in the Loess Plateau of China".SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 81.3(2017):503-513.
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