中国植被对全球变化反应的研究

全球变化研究是本世纪80年代兴起的跨学科、跨国界、迄今为止规模最大的国际合作研究活动,涉及到地球科学、生物科学、环境科学、天体科学及遥感技术、地理信息系统及网络化高科技技术的应用等众多的学科领域,其规模之大、持续时间之久、经费投入之多和高科技技术的广泛应用,代表着当前世界科学的发展趋势。全球变化研究是由以下三个相互独立、相互依存的计划组成:以研究气候系统中物理方面的问题为主的世界气候研究计划(WCRP),以研究地球系统中的生物地球化学循环及过程为主的国际地圈-生物圈计划(IGBP)和以了解导致全球环境变化的人类因素为主的全球环境变化的人类因素计划(HDP)。

EXPERIMENT AND MODELLING ON THE RESPONSES OF CHINESE TERRESTRIAL ECOSYSTEMS TO GLOBAL CHANGE

It is the important objective of the core project "Global Change and Terrestrial Ecosystems (GCTE)" of International Geosphere-Biosphere Project (IGBP) to predict the feedback of terrestrial ecosystems on atmosphere and climate and the responses of the structure and function of ecosystems, natural and managed, to global change in finer scales. A lot of achievements in scientific research have been made, since Chinese scientists took part in the "Global Change Study" in 1985. The comment on the mechanism of responses of natural and managed ecosystems in China to doubled CO2 concentration and climatic change, modeling responses of Chinese terrestrial ecosystems to global change, possible effects of global climatic change on China's desertification, and the study on Northeast China Transect (NECT) made recently by Chinese scientists will be presented. The in-terplan study should draw more attention in the future, and some important tasks will also be proposed.