@article{wang_duan_tu_washburn_cheng_hu_2014, title={Soil carbon, nitrogen and microbial dynamics of pasturelands: Impacts of grazing intensity and planting systems}, volume={24}, DOI={10.1016/s1002-0160(14)60027-8}, number={3}, journal={Pedosphere}, author={Wang, Y. and Duan, W. X. and Tu, C. and Washburn, S. and Cheng, L. and Hu, S.}, year={2014}, pages={408–416} }
 @article{wang_tu_cheng_li_gentry_hoyt_zhang_hu_2011, title={Long-term impact of farming practices on soil organic carbon and nitrogen pools and microbial biomass and activity}, volume={117}, DOI={10.1016/j.still.2011.08.002}, journal={Soil & Tillage Research}, author={Wang, Y. and Tu, C. and Cheng, L. and Li, C. Y. and Gentry, L. F. and Hoyt, G. D. and Zhang, X. C. and Hu, S. J.}, year={2011}, pages={8–16} }