主要研究工作
1. 基于陆地样带，利用自然环境梯度，开展多站点生态系统碳水通量的对比研究，以阐释不同生物区系、不同地带或生态气候区的碳吸收与气候变化相互关系的区域分异特征与驱动机理；
2. 从生态化学计量学角度出发，通过精细调查和取样，探讨生态系统碳交换与植被和土壤生态化学计量学特征之间的关系，揭示生态系统碳氮水通量组分计量学的相互平衡；
3. 通过人工控制实验，评价生态系统碳交换过程对降水和大气氮沉降变化的响应，揭示环境变化条件下生态系统碳氮交换平衡关系的变异特征。

主要研究成果
目前，已发表科研论文29篇，其中SCI收录论文14篇，主要发表在《Agricultural and Forest Meteorology》，《Science in China (Series D)》和《Global Change Biology》等国际学术刊物上。同时，参编学术著作3部，负责完成了多个章节的撰写。代表性论文包括：
Yu, G. R., Zhang, L. M., Sun, X. M., Fu, Y. L., Wen, X. F., Wang, Q. F., Li, S. G., Ren, C. Y., Song, X., Liu, Y. F., Han, S. J., Yan, J. H. 2008. Environmental controls over carbon exchange of three forest ecosystems in eastern China. Global Change Biology, 14, 2555–2571.
Zhang, L. M., Yu, G-R., Sun, X. M., Wen, X. F., Ren, C. Y., Fu, Y. L., Li, Q. K., et al., 2006. Seasonal variations of ecosystem apparent quantum yield (a) and maximum photosynthesis rate (Pmax) of different forest ecosystems in China. Agricultural and Forestry Meteorology, 137, 176–187.
Zhang, L. M., Yu, G-R., Sun, X. M., Wen, X. F., Ren, C. Y., Song, X., Liu, Y. F., Guan, D. X., Yan, J. H., Zhang, Y. P., 2006. Seasonal variations of carbon budgets in typical forests along the eastern forest transect in China. Science in China (Series D). 49 (Supp.II), 47–62.
Yu, G. R., Zhang, L. M., Sun, X. M., Li, Z. Q., Fu, Y. L., 2005. Advancement of carbon flux observation and research in Asia. Science in China (Series D), 48 (Supp-I), 1–16.
Zhang, M., Yu, G.-R., Zhang, L. M., Sun, X. M., Wen, X. F., Han, S. J., Yan, J. H. 2010. Impact of cloudiness on net ecosystem exchange of carbon dioxide in different types of forest ecosystems in China. Biogeosciences, 7, 711–722.