生态与农村环境学报2018，Vol.34Issue(3)：247-252,6.DOI:10.11934/j.issn.1673-4831.2018.03.008
稻季磷锌处理对水稻和伴矿景天吸收镉的影响
Effect of Phosphate and Zinc Amendment at Paddy Season on Cadmium Absorption in Rice and Sedum plumbiz?incicola
摘要
Abstract
Rotation or intercropping of hyperaccumulator and crop is an important way to realize the production while re-mediation on heavy metal polluted soils. The influence of phosphate(P)and zinc(Zn)amendments at rice growth season on cadmium(Cd)uptake in rice and succeeding Sedum plumbizincicola was studied in a pot experiment using Cd contami-nated acid red soil through the rotations of rice and S.plumbizincicola.The results show that at the high P(400 mg·kg-1) treatment soil CaCl2extractable Cd decreased compared with the control(100 mg·kg-1), and the Cd concentration in rice straw was not effected obviously,but the Cd transfer coefficient from straw to grain was significantly decreased in the rice season. The soil CaCl2extractable Cd concentration reduced under Zn treatment, and the Cd concentration in brown rice was reduced from 0.21 mg·kg-1(control)to 0.15 mg·kg-1. The P and Zn treatment at rice season had no obvious influence on the shoot biomass and Cd concentration of S. plumbizincicola at next season. Zn treatment at rice season in-creased Zn accumulation in rice and S. plumbizincicola. The P and Zn treatment at rice season could reduce the risk of Cd accumulation in rice and had no obvious effect on Cd removal by succeeding S.plumbizincicola.So adding Zn and P can be regarded as an adjustable way to treat Cd polluted soil with production while remediation.关键词
磷/锌/镉/水稻/伴矿景天/轮作Key words
phosphate/zinc/cadmium/rice/Sedum plumbizincicola/rotation分类
资源环境引用本文复制引用
曹艳艳,胡鹏杰,程晨,崔旭,吴龙华..稻季磷锌处理对水稻和伴矿景天吸收镉的影响[J].生态与农村环境学报,2018,34(3):247-252,6.基金项目
国家重点研发计划(2016YFE0106400,2016YFD0801104) （2016YFE0106400,2016YFD0801104）
江苏省科技项目(BE2017778,BE2016812) （BE2017778,BE2016812）
中国科学院南京土壤研究所"一三五"计划和领域前沿项目(ISSASIP1613) （ISSASIP1613）
