Andersen Christian P
Western Ecology Division, National Health and Environmental Effects Research Laboratory, Office of Research and Development, US Environmental Protection Agency, 200 SW 35th St, Corvallis, Oregon 97333, USA.
New Phytol. 2003 Feb;157(2):213-228. doi: 10.1046/j.1469-8137.2003.00674.x.
The role of tropospheric ozone in altering plant growth and development has been the subject of thousands of publications over the last several decades. Still, there is limited understanding regarding the possible effects of ozone on soil processes. In this review, the effects of ozone are discussed using the flow of carbon from the atmosphere, through the plant to soils, and back to the atmosphere as a framework. A conceptual model based on carbohydrate signaling is used to illustrate physiological changes in response to ozone, and to discuss possible feedbacks that may occur. Despite past emphasis on above-ground effects, ozone has the potential to alter below-ground processes and hence ecosystem characteristics in ways that are not currently being considered. Contents Summary 213 I. Introduction 213 II. Source-sink model: carbohydrate signaling 214 III. Effect of ozone on above-ground sources and sinks 216 IV. Decreased allocation below ground 218 V. Carbon flux to soils 220 VI. Soil food web 223 VII. Summary, conclusions and future research 223 Acknowledgements 223 References 223.
在过去几十年里，对流层臭氧在改变植物生长发育方面所起的作用一直是数千篇出版物的主题。然而，对于臭氧对土壤过程可能产生的影响，人们的了解仍然有限。在这篇综述中，我们以碳从大气经植物进入土壤再回到大气的流动为框架，讨论臭氧的影响。基于碳水化合物信号传导的概念模型被用来阐释植物对臭氧的生理反应变化，并探讨可能出现的反馈。尽管过去一直强调臭氧对地上部分的影响，但它有可能以目前尚未被考虑到的方式改变地下过程，进而影响生态系统特征。内容摘要213 一、引言213 二、源-库模型：碳水化合物信号传导214 三、臭氧对地上源和库的影响216 四、地下分配减少218 五、碳向土壤的通量220 六、土壤食物网223 七、总结、结论与未来研究223致谢223参考文献223
