Workshop: CO2 and Climate Change Effects on Plants and Soil;to be held Washington, DC; November 1992

自工业革命以来，二氧化碳 大气中的浓度上升了大约25%， 从280 ppmv到350 ppmv。 目前的气候模型估计， 即使人为排放的二氧化碳可以保持在目前的速度， 到2050年，大气中的二氧化碳将增加到约450 ppmv， 到2100年将降至约520 ppmv（IPCC 1990）。 这些 大气中二氧化碳浓度的增加， 其他温室气体浓度的增加， 甲烷和一氧化二氮，预计将导致全球气候 变化包括更高的温度和 水文循环 二氧化碳的同时变化 浓度和气候影响相关的植物和土壤过程？ 这是当今最重要的环境问题之一。 美国SCOPE科学委员会（Scientific Committee on SCOPE） 环境问题）将举办一个关于 植被和土壤对CO2和气候增加的响应 变化 讲习班的目标是： 第一章 结合目前对二氧化碳和气候变化的认识 对相关植被和土壤系统的影响， 并管理。 （二） 为了评估我们预测两种自然反应的能力 生态系统和农业生态系统对CO2同时变化的影响 和气候。 农学家，生态学家，植物生理学家， 土壤科学家将需要实现这些目标。 实验者和建模者都将被邀请，因为 研讨会的主要目的是改善 这些科学家进行实验室和实地研究， 增加二氧化碳和土地使用， 预测大气变化的潜在影响， 气候对生态系统的影响。

Since the beginning of the industrial revolution the CO2 concentration in the atmosphere has risen by approximately 25%, from 280 ppmv to 350 ppmv. Current climate models estimate that even if man-made emissions of CO2 could be kept at present rates, atmospheric CO2 would increase to about 450 ppmv by the year 2050, and to about 520 ppmv by the year 2100 (IPCC 1990). These increases in atmospheric CO2 concentration, combined with increases in the concentrations of other greenhouse gases such as methane and nitrous oxide, are predicted to lead to global climate change comprised of higher temperatures and changes in the hydrological cycle. How will simultaneous changes of CO2 concentration and climate affect linked plant and soil processes? This is one of today's critical environmental questions. The U.S. National Committee of SCOPE (Scientific Committee on Problems of the Environment) will hold a workshop on linked vegetation and soil responses to increasing CO2 and climate change. The goals of the Workshop are: 1) To coalesce current understanding of CO2 and climate change effects on linked vegetation and soil systems, both natural and managed. 2) To evaluate our ability to predict responses of both natural ecosystems and agroecosystems to simultaneous changes in CO2 and climate. Contributions from agronomists, ecologists, plant physiologists, and soil scientists will be needed to accomplish these goals. Both experimentalists and modeler will be invited because a crucial aim of the workshop is to improve communication between those scientists conducting laboratory and field research on increasing CO2 and land use and those scientists who are projecting the potential effects of changing atmosphere and climate on ecosystems through the use of models.