灌溉条件下苏打盐渍化土壤环境变化及其生物效应  

Environment Influence and Biological Effects in Sodic Salinization Soil under Irrigation Condition.

作　　者：宋长春 王志春[1] 宋新山[1] 

机构地区：[1]中国科学院长春地理研究所,长春130021

出　　处：《生态学杂志》2001年第5期51-54,共4页Chinese Journal of Ecology

基　　金：国家自然科学基金项目 (96-0 0 4-0 0 2 -0 9)资助

摘　　要：In this paper,the chemical characteristics of sodic salinization soil and environmental influences of rootzone soil under different irrigation conditions are studied in western Jilin Province,and the obstacle effects of sodic salinization environment on vegetation growth are analysed. Furthermore,excessive Na+ accumulation in paddy can antagonize the absorption of nourishment elements(Ca 2+ ,Mg 2+ ) and microelements(Zn,Cu),and the antagonism is obvious. At last,it is concluded that physiological diseases of paddy have consanguineous relationships with the antagonism among different elements in paddy.Prevention and cure measures on the physiological diseases of paddy are also proposed.In this paper,the chemical characteristics of sodic salinization soil and environmental influences of rootzone soil under different irrigation conditions are studied in western Jilin Province,and the obstacle effects of sodic salinization environment on vegetation growth are analysed. Furthermore,excessive Na+ accumulation in paddy can antagonize the absorption of nourishment elements(Ca 2+ ,Mg 2+ ) and microelements(Zn,Cu),and the antagonism is obvious. At last,it is concluded that physiological diseases of paddy have consanguineous relationships with the antagonism among different elements in paddy.Prevention and cure measures on the physiological diseases of paddy are also proposed.

关 键 词：灌溉 苏打盐渍化工 土壤环境 生物效应 水稻 

分 类 号：S156.4[农业科学—土壤学]