CAJ | 학술논문

[目的]研究不同施肥措施对休宁土壤Cd形态的影响与蔬菜富集特性.[方法]通过盆栽试验,研究了鸡粪、改良剂和外源Cd对休宁菜园土中重金属Cd形态的影响与蔬菜富集特性.[结果]结果表明,施入鸡粪可降低土壤中可交换态Cd和铁锰氧化态Cd的含量,增加了土壤中的碳酸盐态Cd和有机物结合态Cd含量.改良剂可提高土壤中可交换态Cd和碳酸盐态Cd的含量.外源Cd进入到土壤中主要以可交换态、碳酸盐态和铁锰氧化物结合态存在.萝卜、白菜和辣椒的可食用部分对土壤Cd的富集能力为:白菜＞萝卜≈辣椒,转移系数为白菜＞萝卜＞辣椒.[结论]在农业生产上,可在土壤中添加有机肥和无机改良剂减少蔬菜对重金属Cd的吸收积累.在重金属Cd含量高的土壤中应避免种植富集能力极强的蔬菜品种.
[목적]연구불동시비조시대휴저토양Cd형태적영향여소채부집특성.[방법]통과분재시험,연구료계분、개량제화외원Cd대휴저채완토중중금속Cd형태적영향여소채부집특성.[결과]결과표명,시입계분가강저토양중가교환태Cd화철맹양화태Cd적함량,증가료토양중적탄산염태Cd화유궤물결합태Cd함량.개량제가제고토양중가교환태Cd화탄산염태Cd적함량.외원Cd진입도토양중주요이가교환태、탄산염태화철맹양화물결합태존재.라복、백채화랄초적가식용부분대토양Cd적부집능력위:백채＞라복≈랄초,전이계수위백채＞라복＞랄초.[결론]재농업생산상,가재토양중첨가유궤비화무궤개량제감소소채대중금속Cd적흡수적루.재중금속Cd함량고적토양중응피면충식부집능력겁강적소채품충.
[Objective]The effect of the different fertilization measure on the Cd fraction in soil in Xiuning County and its accumulation in vegetable were studied. [Method]The potted experiment in the effect of the chicken manure, additives and Cd addtion on the Cd fraction in soil and its accumulation in vegetable was carried out. [Results]The results showed that the application of chicken manure could decrease the content of exchangeable Cd and Fe-Mn oxide Cd;and increase the content of the carbonate Cd and organic Cd. The content of soil exchangeable Cd and Carbonate Cd could be increased under the condition of additives application. The Cd addition in soil could be mainly transformed into the exchangeable, carbonate and iron-manganese oxide. The order of Cd accumulation in the edible part of different vegetable species was cabbage ＞ radish and pepper, and the transferring coefficient was cabbage ＞ radish ＞ pepper. [Conclusion]The application of organic manure and inorganic soil additives could decrease Cd accumulation by vegelables in farming practices. The vegetables with high enrich ment capacity of Cd should be avoided in soil with high content of Cd.