全球变化的主要科学问题

Major Issues of Global Change Sciences

本文概要地介绍了全球变化国际研究计划发展的现状，论述了它的科学目标，从地球系统维持和运行机制变化规律以及人类对环境的影响等方面分析了需要进一步研究的主要科学问题，指出了实现全球变化研究目标的关键措施。

This paper introduces briefly the recent development of international global change research proj-ects and the over all objectives of research and then followed up by an analysis on major scientific issuesin relation to the mechanism of maintenance operation and variation of the earth system and the impact of human activities on the global environment. Finally the key approaches to support the global changeresearch are proposed.