Interaction between terrestrial ecosystem and climate system with the impact of human activities is one of the key scientific issues in the yield of global change research at the present time.
人类活动影响下，陆地生态系统和气候系统的相互作用已成为目前全球变化研究的主要科学问题之一。
The paper discusses some key issues in constructing Chinese digital library from the following perspectives: (1) the role of digital library in scientific research;
本文从以下几个角度讨论了中国数字图书馆建设中的若干关键问题：（1）数字图书馆在科学研究中的作用；
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