RT Journal T1 Soil enzyme activities and their indication for fertility of urban forest soil A1 SHAN Qihua, YU Yuanchun, ZHANG Jinchi, YU Jian PB Front. Environ. Sci. Eng. FD 2008-06-05 YR 2008 JF Frontiers of Environmental Science & Engineering JO Front. Environ. Sci. Eng. VO 2 IS 2 SP 218 DO 10.1007/s11783-008-0037-5 K1 urban forest soil; enzyme activities; soil fertility; correlation analysis; Nanjing LK {https://academic.hep.com.cn/fese/EN/article/article_7348.shtml}