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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (33): 236-242.doi: 10.11924/j.issn.1000-6850.casb15060097

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Analysis and Evaluation of Heavy Metal Environmental Quality in Bamboo Shoot Producing Areas in South-West Zhejiang Province

  

  • Received:2015-06-16 Revised:2015-06-27 Accepted:2015-07-14 Online:2015-11-26 Published:2015-11-26

Abstract: In order to understand soil heavy metal condition of bamboo shoot producing areas in South-West Zhejiang Province and protect quality safety of bamboo shoot, 7 heavy metals (As, Hg, Pb, Cd, Cr, Cu and Zn) content from 132 soil samples of 8 cities(Anji, Linan, Yuhang and so on) were analyzed, single factor containment index and synthesis containment index were evaluated based on the environmental general requirements for production area of edible forest product (LY/T 1678—2014). The results showed that the content of the 7 heavy metals was 0.79-24.80, 0.03-1.05, 7.64-316.69, 0.00-4.50, 2.47-232.21, 5.33-542.20 and 38.63-436.84 mg/kg, espectively; the range of variation coefficient was from 64.5% to 268.5%; The order of synthesis containment index was Fuyang>Anji>Deqing>Yuhang>Linan>Longyou>Liandu> Suichang. Correlation analysis and clustering analysis showed that there was homology or associated relationship between Cd, Zn and As; As, Hg, Cr, Cu and Pb showed combined pollution phenomenon; while Cd showed an unique pollution source. Soil heavy metal environmental quality of these 8 cities was fine, Pb, Hg and Cd belonged to light polluted level in some areas. Prevention and control should be taken in the process of cultivation and production.