冰冻圈生态系统:全球变化的前哨与屏障

Cryosphere Ecosystems:Outpost and Barrier in Global Change

冰冻圈与生物圈间密切的互馈作用关系在全球变化下不断加强,深刻影响着全球环境治理和人类社会可持续发展。文章从冰冻圈生态系统基本格局与功能、对变化环境的响应过程及适应性策略等角度,全面阐释了冰冻圈生态系统的分布格局及其在全球生态系统功能与人类福祉中的作用、冰冻圈生态系统对全球变化的高度敏感性与指示性、冰冻圈生态系统在生物多样性维持及生物生产力增效等方面的屏障作用等,提出了变化环境下冰冻圈生态系统健康维持的有效调控路径;从而较为系统地介绍了冰冻圈生态学的基本内涵与学科进展,并指出了冰冻圈生态学未来主要发展趋势。

The closely reciprocal feedback between cryosphere and biosphere has constantly been intensified by global change,which strongly affects global management for environment and sustainable development of human-being.From the perspective of basic pattern and function of cryosphere ecosystems,and their response process and adaptive strategy to changing environment,we fully specified distribution patterns of cryosphere ecosystems and how it functioned for earth ecosystems and contributed to human well-being,briefly stated how it is most sensitive,thereby as an indicator to climate change,also pointed out cryosphere ecosystems as barrier function for maintaining biodiversity and increasing productivity,and finally put forward an effective way to facilitate ecosystems health in cryosphere.Totally,the common contents and corresponding study processes in cryosphere ecology were better to be introduced,even essential prospective of cryosphere ecology was included in this paper.