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应用生态学报 ›› 1995, Vol. 6 ›› Issue (4): 428-432.

• 研究论文 • 上一篇    下一篇

石油烃降解物对Cd在土壤-植物系统中迁移转化影响的研究

熊先哲, 何勇田, 张学询, 宋胜焕, 吴铁铮, 李滢   

  1. 中国科学院沈阳应用生态研究所陆地生态系统痕量物质生态过程开放实验室, 沈阳 110015
  • 收稿日期:1995-03-09 修回日期:1995-07-18 出版日期:1995-10-25 发布日期:1995-10-25
  • 基金资助:

    中国科学院陆地生态系统痕量物质生态过程开放实验室基金

Effect of degraded products from mineral oil on translocation and transformation of Cd In soil-plant system

Xiong Xianzhe, He Yongtian, Zhang Xuexun, Song Shenghuan, Wu Tiezheng, Li Ying   

  1. Laboratory of Ecological Process of Trace Substance in Terrestrial Ecosystem, Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1995-03-09 Revised:1995-07-18 Online:1995-10-25 Published:1995-10-25

摘要: 研究棕榈酸、儿茶酚和香草酸对土壤中Cd行为的影响表明,土壤中儿茶酚对水稻的毒害浓度为100mg·kg-1,而香草酸则为500mg·kg-1.当土壤中儿茶酚为5000mg·kg-1时,水稻籽实中Cd浓度降到0.008mg·kg-1,土壤淋溶液中Cd浓度降为0.005mg·L-1,3种有机物均能增加土壤中有机结合态Cd的比例,5000mg·kg-1的儿茶酚处理,土壤中有机质结合态Cd占总Cd的48.71%.

关键词: 棕榈酸, 儿茶酚, 香草酸, Cd, 络合作用, 定量分析, 增强回归树, SWAT模型, 汎河流域

Abstract: Studies on the effect of palmitic acid, catechol and vanillic acid on behavior of Cd in soil show that the toxic concentration of catechol to rice plant is 100 mg·kg-1, and that of vanillic acid is 500 mg·kg-1.When the soil content of catechol is 5000 mg·kg-1, the concentration of Cd in rice grain is reduced to 0.008 mg·kg-1,and that in leached solution from soil column is lowered to 0.005 mg·L-1.All of these three organic compounds can increase the proportion of soil organic bound Cd,which occupies 48.71% of total id when the soil is amended with 5000rug·kg-1 catechol.

Key words: Palmitic acid, Catechol, Vanillic acid, Cadmium, Complexation, Fanhe River watershed, soil and water assessment tool, boosted regression tree, quantitative analysis