1. S.C. Ryals, M.B. Genter and R.B. Leidy: Environmental toxicology and chemistry, VOL. 17 (1998) No. 10, p. (1934).
2. Y.X. Zhang, J.C. Sun, X.P. Xiang, J.H. Jing, J.T. Liu, G.X. Huang, J.C. Wang, X. Chen and H.W. Cui: Environmental Science and Technology, VOL. 33 (2010) No. 12, p.171. (In Chinese).
3. C.J. Huang: Journal of Ecology and Rural Environment, VOL. 14 (1988) No. 1, p.35. (In Chinese).
4. G. Xue and J.X. Ma: Pratacultural Science, VOL. 20(2003)No. 1, p.65. (In Chinese).
5. L. Hu, X.J. Bian and X.L. Yang: The science and management of lawn (China Agricultural University Press, China 2001).