VARIATIONS IN FOLIAR NUTRIENT RESORPTION EFFICIENCY OF DIFFERENT PLANT GROWTH FORMS IN A TEMPERATE SANDY GRASSLAND
文献类型：期刊论文
| 作者 | Mao, Wei1,2; Li, Yulin1,2; Cui, Jianyuan1,2; Zuo, Xiaoan1,2; Zhao, Xueyong1,2 |
| 刊名 | POLISH JOURNAL OF ECOLOGY
 |
| 出版日期 | 2011 |
| 卷号 | 59期号:2页码:355-365 |
| 关键词 | nitrogen resorption efficiency phosphorus resorption efficiency leaf nitrogen concentration leaf phosphorus concentration Horqin Sand Land |
| ISSN号 | 1505-2249 |
| 通讯作者 | Li, Yulin(liyl@lzb.ac.cn) |
| 英文摘要 | Foliar nutrient resorption is an important strategy which allows leaf nutrients to be reused rather than lost with leaf fall, particularly in nutrient-poor ecosystems where even small nutrient losses can have significantly negative impacts on plant survival, competitive ability, and fitness. However, plants vary greatly in nitrogen (N) and phosphorus (P) resorption among plant growth forms during leaf senescence, which may be vital to understand the role of plant growth forms in ecosystem functioning. Green and senesced leaf N and P concentrations of 39 plant species in sandy grassland (Horqin Sand Land) of northern China were analyzed to detect variations of nutrient resorption efficiency among plant growth forms. The results showed that nitrogen resorption efficiency (NRE) ranged from 29% to 74%, with an average (+/- SD) of 50.3 +/- 11.2%, and phosphorus resorption efficiency (PRE) varied among species between 46% and 82%, with a mean (+/- SD) of 68.4 +/- 6.9%, suggesting that nutrient resorption is a vital nutrient conservation strategy in this ecosystem. In addition, NRE and PRE differed significantly among the dominant plant growth forms in this sandy grassland. NRE for N-fixing species and graminoids were significantly lower relative to NRE for shrubs and forbs, but mean PRE of graminoids was significantly higher than those of N fixers, shrubs and forbs. These data give indirect evidence that the differentiation of N and P conservation serve as an important mechanism permitting the co-existence of growth forms in arid systems. |
| 收录类别 | SCI |
| WOS关键词 | INNER-MONGOLIA ; SENESCING LEAVES ; NORTHERN CHINA ; NITROGEN RESORPTION ; MINERAL-NUTRITION ; WIND EROSION ; WILD PLANTS ; LEAF-LITTER ; DECOMPOSITION ; LAND |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000292017900013 |
| 出版者 | POLISH ACAD SCIENCES INST ECOLOGY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556503 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, Yulin |
| 作者单位 | 1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Extreme Stress Resistance & Biotechnol Lab, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Wei,Li, Yulin,Cui, Jianyuan,et al. VARIATIONS IN FOLIAR NUTRIENT RESORPTION EFFICIENCY OF DIFFERENT PLANT GROWTH FORMS IN A TEMPERATE SANDY GRASSLAND[J]. POLISH JOURNAL OF ECOLOGY,2011,59(2):355-365. |
| APA | Mao, Wei,Li, Yulin,Cui, Jianyuan,Zuo, Xiaoan,&Zhao, Xueyong.(2011).VARIATIONS IN FOLIAR NUTRIENT RESORPTION EFFICIENCY OF DIFFERENT PLANT GROWTH FORMS IN A TEMPERATE SANDY GRASSLAND.POLISH JOURNAL OF ECOLOGY,59(2),355-365. |
| MLA | Mao, Wei,et al."VARIATIONS IN FOLIAR NUTRIENT RESORPTION EFFICIENCY OF DIFFERENT PLANT GROWTH FORMS IN A TEMPERATE SANDY GRASSLAND".POLISH JOURNAL OF ECOLOGY 59.2(2011):355-365. |
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来源：寒区旱区环境与工程研究所
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