ISWC OpenIR  > 水保所科研产出--SCI  > 2018--SCI
Impacts of mollic epipedon thickness and overloaded sediment deposition on corn yield in the Chinese Mollisol region
Zhizhen Feng1; Fenli Zheng1,2; Wei Hu2,3; Guifang Li2,3; Ximeng Xu1; Zheng, FL (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2018
Source PublicationAGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
description.correspondentemailflzh@ms.iswc.ac.cn
Volume257Pages:175-182
AbstractTopsoil loss and overloaded sediment deposition profoundly influence soil productivity. Understanding the changes in crop yield with the decrease of topsoil thickness and the increase of sediment deposition depth is crucial to elucidate the effects of soil erosion and deposition on soil productivity. However, little information is available concerning how mollic epipedon thickness and overloaded sediment deposition affect crop yield in the Mollisol region of Northeast China. The objectives of this study were to quantify the effects of mollic epipedon thickness and sediment deposition depth on corn (Zea mays L.) yield in the Mollisol region of Northeast China. Simulated field experiments, including seven mollic epipedon thicknesses (0, 5, 10, 15, 20, 40 and 60 cm) and five sediment deposition depths (0, 7.5, 15, 22.5 and 30 cm) were conducted in two independent experiments, respectively. The results showed that corn yield reduced as mollic epipedon thickness decreased, and corn yield reduced more sharply when mollic epipedon thickness was less than 20 cm. Compared with the control treatment with 60 cm mollic epipedon, the corn yield reductions were 8.2%, 15.8%, 21.3% and 24.2%, respectively, for the treatments with 15, 10, 5 and 0 cm mollic epipedon. Moreover, the negative impacts of overloaded sediment deposition at the corn seeding stage on corn yield were also analysed in this study. The corn yield significantly decreased as sediment deposition depth increased. Compared with the control treatment without sediment deposition, the corn yield was decreased by 31.7% for the treatment with 30 cm sediment deposition depth. Additionally, a logistic function between corn yield and mollic epipedon thickness and a linear function between corn yield and sediment deposition depth were fitted. Cross-validation implied that the two equations had acceptable accuracy. Therefore, prevention of soil erosion and reduction of adverse influences of overloaded sediment deposition are cornerstones of sustainable agriculture in the Chinese Mollisol region.
KeywordMollic Epipedon Thickness Overloaded Sediment Deposition Corn Yield Equation Fitting Chinese Mollisol Region
Subject AreaAgriculture ; Environmental Sciences & Ecology
DOI10.1016/j.agee.2018.02.010
Indexed BySCI
Publication PlacePO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Language英语
WOS IDWOS:000428005800019
PublisherELSEVIER SCIENCE BV
Funding OrganizationNational Key R&D Program of China [2016YFE0202900] ; National Key R&D Program of China [2016YFE0202900] ; National Natural Science Foundation of China [41571263] ; National Natural Science Foundation of China [41571263]
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8272
Collection水保所科研产出--SCI_2018--SCI
Corresponding AuthorZheng, FL (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Fanning Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.MWR, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Zhizhen Feng,Fenli Zheng,Wei Hu,et al. Impacts of mollic epipedon thickness and overloaded sediment deposition on corn yield in the Chinese Mollisol region[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2018,257:175-182.
APA Zhizhen Feng,Fenli Zheng,Wei Hu,Guifang Li,Ximeng Xu,&Zheng, FL .(2018).Impacts of mollic epipedon thickness and overloaded sediment deposition on corn yield in the Chinese Mollisol region.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,257,175-182.
MLA Zhizhen Feng,et al."Impacts of mollic epipedon thickness and overloaded sediment deposition on corn yield in the Chinese Mollisol region".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 257(2018):175-182.
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