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Effect of Combined Heavy Metal aPollution on NITROGEN Mineralization Potential, Urease and Phosphatase Activitiesin a Typic Udic Ferrisol

作  者:
ZHENG CHUNRONG;TU CONG;CHEN HUAIMAN
单  位:
关键词:
heavy metal pollution;n mineralization;phosphatase;urease
摘  要:
Individual and combined effects of Cu, Pb, Zn and Cd on Nmineralizatoin, urease and phosphatase were examined in a Typic UdicFerrisol in laboratory by employing an uniform design and singlefactor design. Soil pollution caused by heavy metals inhibited Nmineralization (N_0 value) and urease and phosphatase activities. Thecombined pollution of metals alleviated their toxicity to Nmineralization to some extent, whereas aggravated the toxicity tourease and phosphatase.

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