Leaf nitrogen resorption pattern along habitats of semi-arid sandy land with different nitrogen status
文献类型：期刊论文
| 作者 | Luo, Yayong1,2; Zhao, Xueyong1; Zuo, Xiaoan1; Zhang, Jinghui1; Liu, Rentao1; Wang, Shaokun1 |
| 刊名 | Polish journal of ecology
 |
| 出版日期 | 2010 |
| 卷号 | 58期号:4页码:707-716 |
| 关键词 | Leaf nitrogen Nitrogen resorption efficiency and proficiency Nitrogen use efficiency Life form Horqin sandy land |
| ISSN号 | 1505-2249 |
| 通讯作者 | Zhao, xueyong(zhaoxy@cern.ac.cn) |
| 英文摘要 | To assess nitrogen (n) resorption patterns in semi-arid sandy land, n concentrations in green leaves (n(g)) and senesced leaves (n(s)) of 35 species of shrubs and herbages were measured along habitats of decreasing soil total n (0.54 to 0.041 g g(-1) d.w. of top soil level) in horqin sandy land (inner mongolia, china). these habitats are following: inter-dune grassland (idg), fixed sand dune (fd), semi-fixed sand dune (sfd), semi-mobile sand dune (smd), and mobile sand dune (md) were considered. results showed that n(g) and n(s) (i.e. nitrogen resorption proficiency, nrp) increased and leaf nitrogen use efficiency (nue) decreased significantly with increasing soil n status across the above habitas, but nitrogen resorption efficiency (nre) was not affected. the levels of n(g), n(s) and nue experience two stages across habitats: first, there were low n(g) and n(s) and high nue in md and smd; second, there were high n(g) and n(s) and low nue in idg, fd and sfd. plants from idg, fd and sfd had incomplete n resorption during foliar senescence, but plants from md and smd had complete n resorption. leaf nre was determined by life forms which had no significant effect on n(g) but on n(s) and nue. for all plants in the five habitats, nre and nue decreased with the sequence of grass, herb, shrub, while n(s) showed a contrary tendency. plants from strong n limitation habitats did not show higher nre, but showed higher nrp and leaf nue, so nrp was a more sensitive indicator of changes in n status than nre. in conclusion, leaf n resorption patterns were mainly determined by soil n status across habitats, and there were some consistent patterns among life forms. |
| WOS关键词 | NUTRIENT RESORPTION ; NORTHERN CHINA ; SENESCING LEAVES ; USE EFFICIENCY ; N CONTENT ; GRADIENT ; DESERTIFICATION ; AVAILABILITY ; CONSERVATION ; GRASSLAND |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000285679100010 |
| 出版者 | POLISH ACAD SCIENCES INST ECOLOGY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2411000 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhao, Xueyong |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Yayong,Zhao, Xueyong,Zuo, Xiaoan,et al. Leaf nitrogen resorption pattern along habitats of semi-arid sandy land with different nitrogen status[J]. Polish journal of ecology,2010,58(4):707-716. |
| APA | Luo, Yayong,Zhao, Xueyong,Zuo, Xiaoan,Zhang, Jinghui,Liu, Rentao,&Wang, Shaokun.(2010).Leaf nitrogen resorption pattern along habitats of semi-arid sandy land with different nitrogen status.Polish journal of ecology,58(4),707-716. |
| MLA | Luo, Yayong,et al."Leaf nitrogen resorption pattern along habitats of semi-arid sandy land with different nitrogen status".Polish journal of ecology 58.4(2010):707-716. |
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来源：中国科学院大学
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