Nutrient resorption response to fire and nitrogen addition in a semi-arid grassland
文献类型：期刊论文
| 作者 | Lue, Xiao-Tao1,2; Cui, Qiang2; Wang, Qi-Bing2; Han, Xing-Guo1,2 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 37期号:3页码:534-538 |
| 关键词 | Nitrogen Deposition Prescribed Burning Resorption Efficiency Resorption Proficiency Temperate Steppe |
| ISSN号 | 0925-8574 |
| DOI | 10.1016/j.ecoleng.2010.12.013 |
| 英文摘要 | Fire and nitrogen (N) addition, both widely used grassland restoration strategies, strongly influence community composition and ecosystem functioning. However, little is known about their effects on plant nutrient resorption from senescing leaves, especially in semi-arid ecosystems. We evaluated the effects of fire, N addition (5.25 g N m(-2) yr(-1)) and their potential interactions on nutrient resorption in five plant species in a semi-arid grassland in northern China. Foliar nutrient concentrations and resorption proficiencies and efficiencies varied substantially among species and functional groups. Fire increased green leaf N concentration ([N]g) and decreased N resorption proficiency (N RP), P resorption proficiency (P RP) and P resorption efficiency (P RE). N addition led to higher [N]g and lower N resorption, whereas it did not affect P related responses. There was no interaction between fire and N addition to affect all response variables except for green leaf P concentration ([P]g). These results suggest that fire and N addition can influence ecosystem nutrient cycling directly by changing resorption patterns and litter quality. Given the substantial interspecific variations in nutrient content and resorption and the potentially changing community composition, both fire and N addition may have indirect impacts on ecosystem nutrient cycling in this semi-arid grassland. (C) 2010 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences & Ecology ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000288043000016 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://210.72.129.5/handle/321005/121961]  |
| 专题 | 中国科学院沈阳应用生态研究所 |
| 通讯作者 | Han, Xing-Guo |
| 作者单位 | 1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lue, Xiao-Tao,Cui, Qiang,Wang, Qi-Bing,et al. Nutrient resorption response to fire and nitrogen addition in a semi-arid grassland[J]. ECOLOGICAL ENGINEERING,2011,37(3):534-538. |
| APA | Lue, Xiao-Tao,Cui, Qiang,Wang, Qi-Bing,&Han, Xing-Guo.(2011).Nutrient resorption response to fire and nitrogen addition in a semi-arid grassland.ECOLOGICAL ENGINEERING,37(3),534-538. |
| MLA | Lue, Xiao-Tao,et al."Nutrient resorption response to fire and nitrogen addition in a semi-arid grassland".ECOLOGICAL ENGINEERING 37.3(2011):534-538. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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