Du, Z. Y., Xing, S. J., Ma, B. Y., Liu, F. C., Ma, H. L. and Wang, Q. H. (2012) “Effects of root pruning on the growth and rhizosphere soil characteristics of short-rotation closed-canopy poplar”, Forest Systems, 21(2), pp. 236-246. doi: 10.5424/fs/2012212-02634.