CAJ | 학술논문

在吉林省黑土区系统的野外调查和土壤及玉米籽实样品采集、测试的基础上，采用地球化学分析方法及SPSS技术，研究了Cd元素的土壤地球化学特征，及其在土壤和作物籽实中的含量特征和相关性，用以揭示Cd元素在土壤-作物系统中的转化累积特征及影响因素，为粮食安全服务。研究表明：吉林省黑土区Cd元素全量高于吉林省及全国土壤背景值，但不存在污染，籽实中Cd含量低于国家安全标准。土壤中Cd元素有效态转化程度较高，受其全量控制，同时Zn、 Cu及P元素有效量对Cd转化的作用明显，偏酸性土壤更利于Cd元素的转化。玉米籽实对Cd吸收程度较低，主要取决于其自身的生物特性， Zn元素缺乏可能导致玉米籽实对Cd元素吸收增加。
재길림성흑토구계통적야외조사화토양급옥미자실양품채집、측시적기출상，채용지구화학분석방법급SPSS기술，연구료Cd원소적토양지구화학특정，급기재토양화작물자실중적함량특정화상관성，용이게시Cd원소재토양-작물계통중적전화루적특정급영향인소，위양식안전복무。연구표명：길림성흑토구Cd원소전량고우길림성급전국토양배경치，단불존재오염，자실중Cd함량저우국가안전표준。토양중Cd원소유효태전화정도교고，수기전량공제，동시Zn、 Cu급P원소유효량대Cd전화적작용명현，편산성토양경리우Cd원소적전화。옥미자실대Cd흡수정도교저，주요취결우기자신적생물특성， Zn원소결핍가능도치옥미자실대Cd원소흡수증가。
With the aim of revealing the characteristics of transformation and accumulation for Cd in the soil -crop system and their influencing factors and guaranteeing grain security , the authors studied the soil geochemistry of Cd element as well as the total content and availability in black soil and corn by utilizing the geochemical analysis and SPSS software based on the detailed fieldwork and sampling soil and corn in the studied area .The results sug-gest that the total content of Cd exceeds the background value in Jilin Province as well as the nationwide , but there is no pollution of Cd in studied area .The Cd content in corn is lower than that in the national safety standard .The transformational degree of available content is relatively high in black soil region .The total Cd content controlled the available content , and the available contents of Zn , Cu and P have obvious effects on transformation of Cd in soil .The acidic soil is more beneficial to transformation of Cd .The absorption degree of corn is low , and it depends on biological property of the corn .Zn deficiency in soil could cause Cd content increase in corn .