兰州大学学报(自然科学版)
蘭州大學學報(自然科學版)
란주대학학보(자연과학판)
JOURNAL OF LANZHOU UNIVERSITY(NATURAL SCIENCES)
2013年
3期
327-331
,共5页
颜斌%南忠仁%赵转军%胡亚虎%王兆炜%杨一鸣
顏斌%南忠仁%趙轉軍%鬍亞虎%王兆煒%楊一鳴
안빈%남충인%조전군%호아호%왕조위%양일명
绿洲土壤%Cd%Zn%Pb%复合污染%吸收特征
綠洲土壤%Cd%Zn%Pb%複閤汙染%吸收特徵
록주토양%Cd%Zn%Pb%복합오염%흡수특정
oasis soil%Cd%Zn%Pb%combined pollution%accumulation characteristic
通过盆栽试验对干旱区绿洲土壤Cd-Zn和Cd-Zn-Pb复合胁迫下芹菜对Cd, Zn的吸收积累和迁移规律进行了研究。结果表明:在Cd-Zn和Cd-Zn-Pb复合胁迫下,芹菜根系干重呈减小趋势,而茎叶干重则先增加后减小。 Pb对芹菜的生长为先促进后抑制,对芹菜根系和茎叶吸收Cd, Zn具有一定的促进作用,促进了Cd, Zn从土壤到芹菜根系和茎叶的富集,对Cd, Zn从芹菜根系到茎叶具有一定的阻碍作用。
通過盆栽試驗對榦旱區綠洲土壤Cd-Zn和Cd-Zn-Pb複閤脅迫下芹菜對Cd, Zn的吸收積纍和遷移規律進行瞭研究。結果錶明:在Cd-Zn和Cd-Zn-Pb複閤脅迫下,芹菜根繫榦重呈減小趨勢,而莖葉榦重則先增加後減小。 Pb對芹菜的生長為先促進後抑製,對芹菜根繫和莖葉吸收Cd, Zn具有一定的促進作用,促進瞭Cd, Zn從土壤到芹菜根繫和莖葉的富集,對Cd, Zn從芹菜根繫到莖葉具有一定的阻礙作用。
통과분재시험대간한구록주토양Cd-Zn화Cd-Zn-Pb복합협박하근채대Cd, Zn적흡수적루화천이규률진행료연구。결과표명:재Cd-Zn화Cd-Zn-Pb복합협박하,근채근계간중정감소추세,이경협간중칙선증가후감소。 Pb대근채적생장위선촉진후억제,대근채근계화경협흡수Cd, Zn구유일정적촉진작용,촉진료Cd, Zn종토양도근채근계화경협적부집,대Cd, Zn종근채근계도경협구유일정적조애작용。
Pot experiments were conducted to observe the laws about the uptake, accumulation and transferring of Cd and Zn in celery roots and shoots under Cd-Zn and Cd-Zn-Pb stress in arid oasis soil and the results show that the dry weight of celery roots had a decreasing trend, and that the dry weight of celery shoots at first increased and then decreased. The growth of celery roots and shoots was promoted and then inhibited with Pb having been added. Owing to the added Pb the uptake of Cd and Zn became easier and the accumulation of Cd and Zn from soils to roots and shoots was promoted, while the transferring of Cd and Zn from roots to shoots was inhibited to a certain extent.