8种矿质元素在苗期水稻中的积累特性  

Accumulation Characteristics of Eight Mineral Elements in Seeding Paddy Rice

作　　者：李松松[1] 李取生[1,2] 何宝燕[1] 李慧[1] 凌玲[1] 

机构地区：[1]暨南大学环境工程系,广东广州510632 [2]水上环境毒害性污染物防治与生物修复广东省高校重点实验室,广东广州510632

出　　处：《环境科学与技术》2014年第4期48-51,61,共5页Environmental Science & Technology

基　　金：国家自然科学基金项目(40871154);中央高校基本科研基金(21612103)

摘　　要：选择广东省近年常见的15个水稻品种，用受污土壤进行盆栽试验，研究了相同外部条件下水稻积累重金属Cd、Cu、Zn和营养矿质元素K、Na；Ca、Mg、Fe的规律。结果显示，Ca、Fe、K、Mg、Na、Cd、Cu、Zn的含量范围为：3983-6115、252．2-732．6、25312-33288、2115～3336、95．77～2837、6．54～24．77、11．98～21．23、孙．33～97．81mg／kg，水稻品种间对重金属Cd、营养矿质元素Fe的吸收累积差异显著，且变异系数分别达到了33．28％、38．36％。Cd与Ca、Mg及Zn表现出显著的相关性，Cu与Ca、Fe、K、Mg、Zn均有湿著相关性，Zn与除K外的其他测试元素均有显著相关性。In order to study the accumulation characteristics of heavy mental and mineral nutrition elements in paddy rice under the same condition, 15 cultivars of rice which are widely cultivated in Guangdong Province were studied by pot experiment. Results showed that the concentration ranges of Ca,Fe, K,Mg, Na,Cd,Cu,Zn were 3 983-6 115, 252.2-732.6, 25 312-33 288, 2 115-3 336, 95.77-2 837, 6.54-24.77, 11.98-21.23, 53.33-97.81 mg/kg respectively. Significant difference was found in concentration of Cd or Fe in 15 varieties, and the coefficients of variation of them were 33.28% and 38.36% respectively. Cd shows a significant correction with Ca,Mg and Zn. Cu shows a significant correction with Ca, Fe, K, Mg and Zn. Zn shows a significant correction with all tested elements except K.

关 键 词：水稻 CD 营养矿质元素 

分 类 号：X13[环境科学与工程—环境科学]