Vertical distribution, biomass, production and turnover of fine roots along a topographical gradient in a sandy shrubland
文献类型：期刊论文
| 作者 | Huang, Gang; Zhao, Xue-yong; Su, Yan-gui; Zhao, Ha-lin; Zhang, Tong-hui |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2008-07-01 |
| 卷号 | 308期号:1-2页码:201-212 |
| 关键词 | fine root production root length density soil available resources topography vertical distribution |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-008-9620-6 |
| 通讯作者 | Huang, Gang(fishofbeiming@tom.com) |
| 英文摘要 | In an artificial Salix gordejevii Chang et Skv. plantation of the Horqin sandy land, we investigated vertical distribution (in 0-100 cm depth), biomass (FRD), fine root production (FRP), fine root length density (FRLD) and turnover of fine roots (< 2 mm diameter) at three sites (dune top, midslope and bottom of dune) along leeward slopes. Meanwhile, the correlation between FRP and soil available resources was analyzed. Our results indicate that more than 65% of total fine root biomass is distributed in 0-40 cm depth, and the patterns are different at three sites. The mean monthly FRD ranges from 227 to 324 g.m(-2), and they follows the order: dune top > midslope > bottom of dune. Ingrowth cores were harvested after 2, 3, 4, 5, 6 and 8 months of installation. At the first five sampling times, FRP and FRLD (0-40 cm) follows the same order with FRD along the topographical gradient, while FRP harvested after 8 months does not follow the same tendency, they are 348, 402 and 356 g.cm(-2) in dune top, midslope and bottom of dune, respectively. Fine root turnover ranges from 1.04-1.92 year(-1), and fine root turnover (20-40 cm) increases from dune top to bottom of dune along the topographical gradient. Correlation analysis between FRP and soil available resources indicates that only mean soil volumetric water content significantly correlates with annual FRP, which suggests that soil water content might be more crucial for shrub growth than fertility along the topographical gradient. |
| 收录类别 | SCI |
| WOS关键词 | FOREST ECOSYSTEMS ; DOUGLAS-FIR ; LIFE-SPAN ; DYNAMICS ; AVAILABILITY ; PLANTATIONS ; RESPONSES ; PATTERNS ; MODEL ; WATER |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000256529700015 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556137 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Huang, Gang |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg & Environm & Engn Res Inst, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Gang,Zhao, Xue-yong,Su, Yan-gui,et al. Vertical distribution, biomass, production and turnover of fine roots along a topographical gradient in a sandy shrubland[J]. PLANT AND SOIL,2008,308(1-2):201-212. |
| APA | Huang, Gang,Zhao, Xue-yong,Su, Yan-gui,Zhao, Ha-lin,&Zhang, Tong-hui.(2008).Vertical distribution, biomass, production and turnover of fine roots along a topographical gradient in a sandy shrubland.PLANT AND SOIL,308(1-2),201-212. |
| MLA | Huang, Gang,et al."Vertical distribution, biomass, production and turnover of fine roots along a topographical gradient in a sandy shrubland".PLANT AND SOIL 308.1-2(2008):201-212. |
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来源：寒区旱区环境与工程研究所
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