|
|||||
|
|
| 增温对高寒草甸群落凋落物质量动态变化的影响 | |
| 引用本文： | 林巧燕,,徐广平,苏爱玲,段吉闯,,张振华,,罗彩云,,汪诗平.增温对高寒草甸群落凋落物质量动态变化的影响[J].广西植物,2011,31(6):770-774. |
| 作者姓名： | 林巧燕 徐广平 苏爱玲 段吉闯 张振华 罗彩云 汪诗平 |
| 作者单位： | 1. 中国科学院西北高原生物研究所高原适应与进化重点实验室,西宁810008;中国科学院研究生院,北京100049 2. 广西壮族自治区中国科学院广西植物研究所,广西桂林,541006 3. 中国科学院西北高原生物研究所高原适应与进化重点实验室,西宁,810008 4. 中国科学院青藏高原研究所高寒生态学和生物多样性实验室,北京,100085 |
| 摘 要： | 为了解未来增温条件下,青藏高原高寒草甸凋落物质量如何变化,将有助于增强对高寒草甸生态系统碳源/汇效应的认识.该文通过定位可控的增温试验平台,动态监测了凋落物生物量及其质量的变化.结果表明:增温显著地促进了凋落物的分解速率(F=35.757,P＜0.001),降低了凋落物中的C、N含量及其C/N比,但提高了凋落物中的P含... |
| 关 键 词： | 增温 凋落物 碳含量 氮含量 磷含量 纤维素 木质素 |
Response of litter quality to warming in the alpine meadow on the Tibetan Plateau |
|
| LIN Qiao-Yan,XU Guang-Ping,SU Ai-Ling,DUAN Ji-Chuang,ZHANG Zhen-Hua,LUO Cai-Yun,WANG Shi-Ping.Response of litter quality to warming in the alpine meadow on the Tibetan Plateau[J].Guihaia,2011,31(6):770-774. | |
| Authors: | LIN Qiao-Yan XU Guang-Ping SU Ai-Ling DUAN Ji-Chuang ZHANG Zhen-Hua LUO Cai-Yun WANG Shi-Ping |
| Abstract: | Understanding how the response of litter quality to warming will increase our ability to predict the change of carbon sink/source of alpine meadow ecosystem under future warming condition.We found that warming(about 1.5 ℃ enhancement)significantly increased litter decomposition and phosphors concentration,whereas decreased concentrations of carbon and nitrogen,and their ratio in remaining litters.From June to October in 2009,four fields measured results showed that warming significantly promoted the litter decomposition rate(F=35.757,P<0.001).These results suggested that warming would increase carbon/nitrogen cycling processes in the alpine region. |
| Keywords: | warming litter carbon nitrogen phosphorus cellulose lignin |
| 本文献已被 万方数据 等数据库收录！ | |
| 点击此处可从《广西植物》浏览原始摘要信息 | |
| 点击此处可从《广西植物》下载免费的PDF全文 | |