有机物料对污染土壤上水稻生长和重金属吸收的影响  

Effects of organic amendments on the growth and heavy metal uptake of rice on a contaminated soil

作　　者：周利强[1,2,3] 吴龙华[2] 骆永明[2] 尹斌[1] 

机构地区：[1]中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,南京210008 [2]中国科学院南京土壤研究所中国科学院土壤环境与污染修复重点实验室,南京210008 [3]中国科学院研究生院,北京100049

出　　处：《应用生态学报》2012年第2期383-388,共6页Chinese Journal of Applied Ecology

基　　金：国家自然科学基金重大国际合作项目(40821140539);国家自然科学基金项目(41071197)资助;国家高技术研究发展计划项目(2006AA10Z418)

摘　　要：采用盆栽试验,研究了施用有机碳源、菜籽饼和猪粪对污染土壤上水稻生长和重金属吸收特性的影响.结果表明:施用菜籽饼和猪粪均能缓解重金属对水稻的毒害作用,促进水稻生长,显著增加地上部生物量和籽粒产量,降低糙米中重金属浓度;而有机碳源抑制水稻生长.与施用化肥相比,施用菜籽饼和猪粪处理的水稻籽粒产量分别增加128.3%和67.9%;施用菜籽饼处理的糙米Cd、Cu和Zn浓度分别降低47.6%、35.2%和21.5%,施用猪粪处理分别降低9.5%、21.2%和9.3%.土壤中DTPA提取态重金属浓度与水稻地上部生物量和重金属积累总量呈显著负相关.A pot experiment was carried out to investigate the effects of three organic amendments （organic carbon material,rapeseed cake,and pig manure） on the growth and heavy metal uptake of rice on a heavy metal mixed contaminated paddy soil.Applying rapeseed cake and pig manure could mitigate the toxic effect of heavy metals on rice plant.The two organic amendments increased the shoot biomass and grain yield significantly,and decreased the heavy metal concentration in brown rice.Under the application of organic carbon material,rice growth was inhibited.As compared with the control,applying rapeseed cake and pig manure increased the grain yield by 128.3% and 67.9%,and decreased the Cd,Cu,and Zn concentrations in brown rice by 47.6%,35.2% and 21.5%,and 9.5%,21.2% and 9.3%,respectively.The shoot biomass and its total accumulation of Cd,Cu,and Zn had significant negative correlations with the soil DTPA-extractable heavy metals.

关 键 词：有机物料 水稻 锌 镉 土壤 

分 类 号：X173[环境科学与工程—环境科学]