δ13C and water-use efficiency indicated by δ13C of different plant functional groups on Changbai Mountains, Northeast China
δ13C and water-use efficiency indicated by δ13C of different plant functional groups on Changbai Mountains, Northeast China
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DOI：
10.1007/s11434-009-0046-1
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发表时间：
2009-03
影响因子：
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通讯作者：
W. Tan;Guoan Wang;Jiamao Han;Min Liu;Liping Zhou;Ting Luo;Z. Cao;Shu-bo Cheng
中科院分区：
文献类型：
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作者：
W. Tan;Guoan Wang;Jiamao Han;Min Liu;Liping Zhou;Ting Luo;Z. Cao;Shu-bo Cheng
对长白山不同植物功能群（乔木、灌木和杂类;万年青和落叶;一年生、二年生和多年生）的叶片δ 13 C进行了测定。生活型对植物δ 13 C有显著影响，表明叶片δ 13 C也是区分高湿温带和寒带植物功能群的理想指标。不同植物功能群的水分利用效率差异显著，δ 13 C和WUE的大小顺序为杂类<灌木<乔木。在灌木中，万年青灌木的δ 13 C和WUE高于落叶灌木。不同寿命草本植物的δ 13 C和WUE差异显著，且δ 13 C和WUE的大小顺序为一年生草本>二年生草本>多年生草本，与以往研究结果不一致，表明δ 13 C和WUE在一年生草本、二年生草本和多年生草本之间的排序可能取决于当地的水分供应情况。
Leafδ13C of different plant functional groups (trees, shrubs and forbs; evergreen and deciduous; annual, biennial and perennial) were examined on the Changbai Mountains, China. Life form has a significant influence on plantδ13C, suggesting that leafδ13C is also ideal for distinguishing functional groups species in temperate and frigid zones with high humidity. Additionally, the difference of water-use efficiency (WUE) is significant among different plant functional groups.δ13C and WUE are in the following order of forbs < shrubs < trees. Within shrubs,δ13C and WUE are higher for evergreen shrubs than deciduous shrubs. Differences inδ13C and WUE are significant among different lifespan herbs, andδ13C and WUE follow the order of annual herbs > biennial herbs > perennial herbs, not in accordance with the pattern obtained by previous studies in deserts, suggesting that the ranking ofδ13C and WUE among annual, biennial and perennial herbs may be dependent on local water availability.