耕型红壤和红壤性水稻土铜的化学形态及其有效性  

Chemical forms and availability of Cu in cultivated red soils and paddy field developed from red soil

作　　者：张杨珠[1] 刘学军[2] 李法云[3] 黄运湘[1] 周清[1] 袁正平[1] 

机构地区：[1]湖南农业大学资源系,湖南长沙410128 [2]中国农业大学植物营养系,北京100094 [3]辽宁大学环境与生命科学院,辽宁沈阳110036

出　　处：《土壤通报》2000年第5期210-212,共3页Chinese Journal of Soil Science

基　　金：湖南省自然科学基金资助项目 !( 97JJN 0 71)

摘　　要：对湖南省 1 0个有代表性红壤样品进行化学分组测定 .结果表明 ,土壤有机态、无定形铁态、晶形铁态和残留态铜分别占全铜量的 1 5 2 %、1 1 7%、1 7 2 %和 5 6 0 % .红壤性水稻土有机态和无定形铁态铜 ,明显高于耕型红壤 ,而晶形态、残留态铜则相反 。The contents of organic, amorphous, crystal and residual Cu in some red soils and paddy fields developed from red soils were 15.2 , 11.7, 17.2, and 56.0% relative to the total, respectively. The organic and amorphous forms of Cu in the paddy fields exceeded those in the red soils, while the other two forms of Cu showed an opposite trend. In addition, the available Cu in the paddy fields was higher than that in the red soils, both being above the limiting level of available Cu.

关 键 词：红壤 铜 化学形态 有效铜 水稻土 

分 类 号：S153.6[农业科学—土壤学] S155.42[农业科学—农业基础科学]