Fine root distribution and morphological characteristics of switchgrass under different row spacings on semi-arid Loess Plateau, China
文献类型：期刊论文
| 作者 | An, Qin-Qin1,2; Wang, Shi-Qi1; Kang, Ji-Yue1,2; Wang, Zhi1,2; Chen, Ying-Long1,2; Xu, Bing-Cheng1,2 |
| 刊名 | ARCHIVES OF AGRONOMY AND SOIL SCIENCE
 |
| 出版日期 | 2020-10-15 |
| 页码 | 17 |
| 关键词 | Switchgrass row spacing fine root root distribution root morphology |
| ISSN号 | 0365-0340 |
| DOI | 10.1080/03650340.2020.1820490 |
| 通讯作者 | Xu, Bing-Cheng(Bcxu@ms.iswc.ac.cn) |
| 英文摘要 | To change row spacing is a common agricultural practice to adjust plant density to enhance plant growth and development. Here we examined the fine root (<= 1.0 mm in diameter) distribution and morphological characteristics of switchgrass (Panicum virgatumL.) in the 7(th)growth year under three row spacing settings (20 cm, 40 cm and 60 cm) on a terrace field in the semi-arid Loess Plateau region. Roots from 0 to 150 cm soil layers were utilized to evaluate the root biomass, distribution and morphological traits in April and October 2016. Results showed that fine root biomass (FRB) mainly distributed in the 0-40 cm soil layer, and it was higher under the 20 cm and 40 cm than that under the 60 cm row spacing treatment. FRB in October was lower than in April under all three row spacings. Compared with 20 cm and 60 cm row spacing, root surface area, root length density and specific root length under 40 cm row spacing were higher, while root diameter was smaller. These conferred switchgrass with larger soil exploration and root-soil interface. It implied that switchgrass grown under 40 cm row spacing had stronger ability on exploiting soil resources in the semi-arid area. |
| WOS关键词 | NUTRIENT AVAILABILITY ; NITROGEN DYNAMICS ; GRAIN-YIELD ; NARROW-ROW ; BIOMASS ; PHOSPHORUS ; CARBON ; COMPETITION ; DIAMETER ; TURNOVER |
| 资助项目 | National Key Research and Development Program of China[2016YFC0501703] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| WOS记录号 | WOS:000577308900001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Key Research and Development Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/157039]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Bing-Cheng |
| 作者单位 | 1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | An, Qin-Qin,Wang, Shi-Qi,Kang, Ji-Yue,et al. Fine root distribution and morphological characteristics of switchgrass under different row spacings on semi-arid Loess Plateau, China[J]. ARCHIVES OF AGRONOMY AND SOIL SCIENCE,2020:17. |
| APA | An, Qin-Qin,Wang, Shi-Qi,Kang, Ji-Yue,Wang, Zhi,Chen, Ying-Long,&Xu, Bing-Cheng.(2020).Fine root distribution and morphological characteristics of switchgrass under different row spacings on semi-arid Loess Plateau, China.ARCHIVES OF AGRONOMY AND SOIL SCIENCE,17. |
| MLA | An, Qin-Qin,et al."Fine root distribution and morphological characteristics of switchgrass under different row spacings on semi-arid Loess Plateau, China".ARCHIVES OF AGRONOMY AND SOIL SCIENCE (2020):17. |
入库方式： OAI收割
来源：地理科学与资源研究所
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