CAJ | 학술논문

为研究富集植物秸秆对超富集植物的化感作用，通过盆栽试验，研究了镉污染条件下，土施4种镉富集植物（小飞蓬、碎米荠、旱莲草和豆瓣菜）秸秆对牛膝菊生长及镉积累的影响。结果表明：与未施用相比，施用小飞蓬和碎米荠秸秆提高了牛膝菊根系、茎秆、叶片、地上部分及整株生物量，也提高了牛膝菊株高和抗氧化酶（SOD、POD 和CAT）活性，但施用旱莲草和豆瓣菜秸秆则降低了牛膝菊的生物量、株高和抗氧化酶活性。施用小飞蓬、碎米荠、旱莲草和豆瓣菜秸秆均提高了牛膝菊地上部分镉含量，分别比未施用提高了12．01％，9．55％，22．03％，5．39％，但只有施用小飞蓬和碎米荠秸秆的牛膝菊地上部分镉积累量高于未施用（分别比未施用提高了35．78％和11．77％）。施用小飞蓬和碎米荠秸秆提高了土壤过氧化氢酶活性、土壤脲酶活性和土壤蔗糖酶活性，而施用旱莲草和豆瓣菜秸秆则降低了土壤酶活性。因此，土施小飞蓬和碎米荠秸秆均能提高牛膝菊对镉污染土壤的修复能力，以小飞蓬秸秆的效果最佳。
위연구부집식물갈간대초부집식물적화감작용，통과분재시험，연구료력오염조건하，토시4충력부집식물（소비봉、쇄미제、한련초화두판채）갈간대우슬국생장급력적루적영향。결과표명：여미시용상비，시용소비봉화쇄미제갈간제고료우슬국근계、경간、협편、지상부분급정주생물량，야제고료우슬국주고화항양화매（SOD、POD 화CAT）활성，단시용한련초화두판채갈간칙강저료우슬국적생물량、주고화항양화매활성。시용소비봉、쇄미제、한련초화두판채갈간균제고료우슬국지상부분력함량，분별비미시용제고료12．01％，9．55％，22．03％，5．39％，단지유시용소비봉화쇄미제갈간적우슬국지상부분력적루량고우미시용（분별비미시용제고료35．78％화11．77％）。시용소비봉화쇄미제갈간제고료토양과양화경매활성、토양뇨매활성화토양자당매활성，이시용한련초화두판채갈간칙강저료토양매활성。인차，토시소비봉화쇄미제갈간균능제고우슬국대력오염토양적수복능력，이소비봉갈간적효과최가。
To study the allelopathy effects of accumulator straw on hyperaccumulator,a pot experiment was con-ducted to study the effects of applying accumulators (Conyza canadensis,Cardamine hirsuta,Eclipta prostrata and Nasturtium officinale)straws in soil on growth and cadmium accumulation of Galinsoga parviflora under cadmium pollution.The results were as follows:Compared with non-application (control),the application of C.canadensis and C.hirsute straws improved the roots,stems,leaves,shoots and whole plants biomasses of G.parviflora,and the plant height and antioxidant enzymes (SOD,POD and CAT)activity of G.parviflora also increased.The straws of E.pros-trate and N.officinale reduced the biomass,plant height and antioxidant enzyme activity of G.parviflora.The straws of C.canadensis,C.hirsuta,E.prostrata and N.officinale improved cadmium content in shoots of G.parviflora,which improved 1 2.01 %,9.55%,22.03% and 5.39% respectively compared with control,but only C.canadensis and C.hirsuta straws improved the cadmium accumulation in shoots of G.parviflora (which improved by 35.78% and 1 1 .77% respectively compared with control).C.canadensis and C.hirsuta straws increased soil catalase activity, soil urease activity and soil invertase activity,and the straws of E.prostrata and N.officinale reduced soil activity. Therefore,the applying C.canadensis and C.hirsuta straws in soil could improve cadmium contaminated soil remedy ability of G.parviflora,and C.canadensis straw was the best one.