Warming Treatment Methodology Affected the Response of Plant Ecophysiological Traits to Temperature Increases: A Quantitive Meta-Analysis
Warming Treatment Methodology Affected the Response of Plant Ecophysiological Traits to Temperature Increases: A Quantitive Meta-Analysis
复制标题
变暖处理方法影响植物生态生理特性对温度升高的响应：定量荟萃分析
DOI：
10.3389/fpls.2019.00957
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发表时间：
2019-09
影响因子：
5.6
通讯作者：
Yang Zaiqiang
中科院分区：
文献类型：
--
作者：
Wang Dan;Wang Hao;Wang Pengpeng;Ling Tianqi;Tao Wenhui;Yang Zaiqiang
全球平均温度预计将显着增加，到21世纪末，并可能对植物的生长，生理和生态系统过程产生巨大的影响。通过温度控制试验，研究了植物生理生态对气候变暖的响应模式。然而，它仍然是未知的，如何在这些实验中使用不同的方法将影响植物的生理生态响应变暖。我们进行了一个全面的荟萃分析的变暖操纵的研究，以合成的生理生态性状的反应，不同强度的变暖处理，持续时间，并进行了不同的物种和不同的实验设置。结果表明，增温提高了叶片暗呼吸强度（Rd）和比叶面积（SLA），降低了净光合速率（Anet）和叶片氮含量（LN）。气候变暖对Rd和Anet的正效应和负效应分别大于C3物种和C4物种。增温处理对Anet和LN的负效应和对Rd的正效应在增温处理>1年时更为明显。当实验持续时间超过1年时，对于生长在<10 L盆中的植物，变暖的负面影响更明显。升温处理的幅度对研究中研究的大多数参数有显著影响。结果表明，增温对植物生理生态性状的影响在不同响应变量和PFT之间存在差异，并受温度变化幅度和实验方法的影响。研究结果表明，在预测未来气候条件下生态系统功能变化时，需要谨慎选择植物生理生态参数值，并设计控制实验，以真实地反映生态系统对未来全球变暖的反应。
Global mean temperature is expected to significantly increase by the end of the twenty-first century and could have dramatic impacts on a plant's growth, physiology, and ecosystem processes. Temperature manipulative experiments have been conducted to understand the responsive pattern of plant ecophysiology to climate warming. However, it remains unknown how different methodology used in these experiments will affect plants ecophysiological responses to warming. We conducted a comprehensive meta-analysis of the warming manipulative studies to synthesize the ecophysiological traits responses to warming treatment of different intensities, durations, and conducted for different species and under different experimental settings. The results indicated that warming enhanced leaf dark respiration (Rd) and specific leaf area (SLA) but decreased net photosynthetic rate (Anet) and leaf nitrogen content (LN). The positive and negative effects of warming on Rd and Anet were greater for C4 species than C3 species, respectively. The negative effect of warming treatment on Anet and LN and the positive effect on Rd were more evident under >1 year warming treatment. Negative effects of warming were more evident for plants grown at <10 L pots when experiment duration was longer than 1 year. The magnitude of warming treatment had a significant impact on most of the parameters that were investigated in the study. Overall, the results showed that warming effects on plant ecophysiological traits varied among different response variables and PFTs and affected by the magnitude of temperature change and experimental methodology. The results highlight the need for cautiously selecting the values of plant ecophysiological parameters in forecasting ecosystem function changes in future climate regimes and designing controlled experiments to realistically reflecting ecosystems responses to future global warming.
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影响因子：
7.3
作者：
Dwyer, Simon A.;Ghannoum, Oula;Von Caemmerer, Susanne
通讯作者：
Von Caemmerer, Susanne
影响因子：
10.1
作者：
Knapp, Alan K.;Smith, Melinda D.;Webster, Jackson R.
通讯作者：
Webster, Jackson R.
全球变暖导致青杨雌性插条比雄性插条向地上器官分配更多的生物量、碳和氮
影响因子：
1.1
作者：
Chengchun Wu;Qingmin Han;Xiao Xu;Guoquan Peng
通讯作者：
Guoquan Peng
影响因子：
7.3
作者：
B. Medlyn;D. Loustau;S. Delzon
通讯作者：
B. Medlyn;D. Loustau;S. Delzon
影响因子：
4
作者：
P. Reich;M. Walters;T. Tabone
通讯作者：
P. Reich;M. Walters;T. Tabone