Soil animals and their responses to soil heavy metal pollution in sewage irrigated farmland: A case study of the sewage irrigated area of Huafei River, Kaifeng City
DU Xi-le, MA Jian-hua, LU Chang-he, LI Wen-jun
GEOGRAPHICAL RESEARCH . 2010, (4): 617 -628 .  DOI: 10.11821/yj2010040005