KMS Institute of soil and water conservation Chinese Academy of Sciences
| 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. | |
| 文章类型 | Article |
| 2018 | |
| 发表期刊 | AGRICULTURE ECOSYSTEMS & ENVIRONMENT
 |
| ISSN | 0167-8809 |
| 通讯作者邮箱 | flzh@ms.iswc.ac.cn |
| 卷号 | 257页码:175-182 |
| 摘要 | Topsoil 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. |
| 关键词 | Mollic Epipedon Thickness Overloaded Sediment Deposition Corn Yield Equation Fitting Chinese Mollisol Region |
| 学科领域 | Agriculture ; Environmental Sciences & Ecology |
| DOI | 10.1016/j.agee.2018.02.010 |
| 收录类别 | SCI |
| 出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 英语 |
| WOS记录号 | WOS:000428005800019 |
| 出版者 | ELSEVIER SCIENCE BV |
| 项目资助者 | National 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] |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | sbir.nwafu.edu.cn/handle/361005/8272 |
| 专题 | 水保所科研产出--SCI_2018--SCI |
| 通讯作者 | Zheng, FL (reprint author), Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China. |
| 作者单位 | 1.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 |
| 推荐引用方式 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. |
| 条目包含的文件 | 下载所有文件 | |||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 2-107.pdf（827KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 浏览 下载 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论