The cultivated land soil quality change and mechanism in the Pearl River Delta
ZHONG Jihong, LIN Lanwen, YU Weimin, LOU Baisheng, TAN Jun, ZHANG Guolin
Ecology and Environment . 2009, (5): 1917 -1922 .  DOI: 10.16258/j.cnki.1674-5906(2009)05-1917-06