Distribution characteristics of As,Hg,Cd,Cr,and Pb in soil and vegetable in protected vegetable field under different rotation modes

doi:10.7523/j.issn.2095-6134.2012.2.010

Abstract

Abstract:

Distributions of As, Hg, Cd, Cr, and Pb in soil and vegetable under different rotation modes were studied in an one-year experiment at the demonstration bases of vegetable in Damintun town, Shenyang city. The results showed that As, Hg, Cr, and Pb contents in soil and vegetable were lower than the criteria in the national safety standard. Spinach-tomato-kidney bean rotation mode could reduce the Cd-concentration in soil and decrease the integrative pollution index. However spinach is improper in that region because of enrichment of Cd. So a rotation mode of lettuce (or rape)-tomato-kidney is suggested, instead of the mode of spinach-tomato-kidney.

Key words: rotation mode, vegetable, heavy metal

CLC Number:

X131.3

HUANG Bao-Tong, XU Yong-Gang, YU Wan-Tai, ZHOU Hua. Distribution characteristics of As,Hg,Cd,Cr,and Pb in soil and vegetable in protected vegetable field under different rotation modes[J]. , 2012, (2): 212-219.

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