| 短期夜间增温对亚高山针叶林云杉幼苗根系分泌物速率和化学成分的影响 |
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| 引用本文： | 蒋铮,肖娟,张子良,乔明锋,何为,刘庆,尹华军. 短期夜间增温对亚高山针叶林云杉幼苗根系分泌物速率和化学成分的影响[J]. 生态学报, 2018, 38(9): 3086-3096 |
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| 作者姓名： | 蒋铮 肖娟 张子良 乔明锋 何为 刘庆 尹华军 |
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| 作者单位： | 中国科学院成都生物研究所中国科学院山地生态恢复与生物资源利用重点实验室生态恢复与生物多样性保育四川省重点实验室;中国科学院大学;西华师范大学环境科学与工程学院;四川旅游学院 |
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| 基金项目： | 国家重点研发项目（2017YFC0505200）；中国科学院前沿科学重点研究项目（QYZDB-SSW-SMC023）；四川省重点研发项目（2017SZ0038）；四川省青年科技基金（2016JQ0037） |
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| 摘 要： | 以连续7a红外辐射增温处理下的云杉幼苗为对象,定量分析了增温对植物根系碳(C)、氮(N)分泌速率以及主要挥发性化学成分的影响。结果表明:(1)增温显著增加了云杉幼苗根系C分泌速率,而对N分泌速率无显著影响,并伴随着根系分泌物C∶N化学计量比显著增加;(2)不同化学组分输入含量变化对增温的响应具有明显差异,其响应幅度和方向与化学组分种类有关。其中糖类、氨基酸和酚类化合物的含量在增温处理下均显著增加,而酯类、醚类相对含量显著降低;(3)进一步分析表明,同组分中不同化合物成分含量对增温的响应也有所差异。例如,增温仅导致酚类化合物中2,6-二叔丁基-4-甲基苯酚和4-叔丁基杯[4]芳烃含量显著增加(分别比对照增加了88.9%和375.7%),而对其余酚类化合物成分含量无显著影响。结果表明增温可导致植物根系分泌物各组分相对含量发生深刻地变化,这对于进一步认识不同环境变化下根系分泌物输入及其所诱导的特异性土壤微生物养分过程具有重要的理论意义。
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| 关 键 词： | 模拟增温 云杉 根系分泌物 化学成分 亚高山针叶林 |
| 收稿时间： | 2017-03-29 |
| 修稿时间： | 2017-12-18 |
Effects of night-time warming on the rates and main chemical components of root exudates produced by Picea asperata seedlings in subalpine coniferous forests |
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| JIANG Zheng,XIAO Juan,ZHANG Ziliang,QIAO Mingfeng,HE Wei,LIU Qing and YIN Huajun. Effects of night-time warming on the rates and main chemical components of root exudates produced by Picea asperata seedlings in subalpine coniferous forests[J]. Acta Ecologica Sinica, 2018, 38(9): 3086-3096 |
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| Authors: | JIANG Zheng XIAO Juan ZHANG Ziliang QIAO Mingfeng HE Wei LIU Qing YIN Huajun |
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| Affiliation: | Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China;University of Chinese Academy of Sciences, Beijing 100049, China,College of Environmental Science and Engineering, China West Normal University, Nanchong 637000, China,Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China;University of Chinese Academy of Sciences, Beijing 100049, China,Sichuan Tourism University, Chengdu 610100, China,Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China;University of Chinese Academy of Sciences, Beijing 100049, China,Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China and Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization & Ecological Restoration Biodiversity Conservation Key Laboratory of Sichuan Province, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China;College of Environmental Science and Engineering, China West Normal University, Nanchong 637000, China |
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| Abstract: | |
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| Keywords: | climate warming Picea asperata root exudates chemical components subalpine coniferous forests |
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