CAJ | 학술논문

以玉米为供试作物，研究施入生活垃圾堆肥对土壤和玉米各器官重金属分布规律及对土壤养分的影响。结果表明：连续3年施肥，土壤速效养分的含量明显增加；土壤重金属呈现累积，但含量远远低于二级土壤标准（GB 15618-1995）；植株中重金属含量表现为根部>茎秆>叶片>籽粒，Cd在植株根部富集，但未大量向其他部位转移，玉米植株地上部分重金属含量明显低于饲料卫生标准（GB 13078-2001）。由此推断，在短期内（3年），年施入60000 kg·hm-2的垃圾堆肥能提高土壤肥力，且暂时不会引起土壤重金属污染，也不影响玉米植株的饲用；使用多年后应及时监测，以保证安全性。
이옥미위공시작물，연구시입생활랄급퇴비대토양화옥미각기관중금속분포규률급대토양양분적영향。결과표명：련속3년시비，토양속효양분적함량명현증가；토양중금속정현루적，단함량원원저우이급토양표준（GB 15618-1995）；식주중중금속함량표현위근부>경간>협편>자립，Cd재식주근부부집，단미대량향기타부위전이，옥미식주지상부분중금속함량명현저우사료위생표준（GB 13078-2001）。유차추단，재단기내（3년），년시입60000 kg·hm-2적랄급퇴비능제고토양비력，차잠시불회인기토양중금속오염，야불영향옥미식주적사용；사용다년후응급시감측，이보증안전성。
Municipal solid waste(MSW)compost is increasingly used in agriculture for improving soil nutrients and reducing waste disposal cost. However, the risks and benefits of MSW remains unsolved. In the present study, a field experiment was conducted to investigate the in-fluence of MSW compost on heavy metal contents and nutrients in soil and of maize plant. The results showed that nutrients and heavy metals in soil were obviously increased, but heavy metal contents did not exceed the soil environmental quality standard of China(GB 15618-1995). Contents of heavy metal in plant showed the order of root>stem>leaf>seed. Heavy metals in aerial part were significantly lower than the feed hygiene standards of China (GB 13078-2001). The results indicated that, as a consequence of annual 60 000 kg·hm-2 MSW application, soil fertility was obviously increased without presence of significant heavy metal pollution in a short term (three year), the aerial part of maize plant was not polluted either and could be used as feed;but continuous application must be timely monitored to keep safety.