中国农学通报
中國農學通報
중국농학통보
CHINESE AGRICULTURAL SCIENCE BULLETIN
2013年
11期
151-157
,共7页
李顺%李科林%朱健%彭佩钦%廖柏寒
李順%李科林%硃健%彭珮欽%廖柏寒
리순%리과림%주건%팽패흠%료백한
植物%土壤%重金属%评价%富集
植物%土壤%重金屬%評價%富集
식물%토양%중금속%평개%부집
plants%soil%heavy mental%evaluation%accumulation
为了给重金属污染区域的植物恢复提供参考依据,采集了株洲市霞湾港14种典型植物及其土壤,研究了植物中重金属的分布、污染、迁移和积累规律,发现不同典型植物在重金属污染区域的生存特点,并采用潜在生态风险指数法,评价土壤重金属污染状况,根据富集系数和转移系数研究了植物中重金属的分布和转移规律。结果表明,多数土壤重金属元素含量都明显偏高,潜在生态危害依次为Eir (Cd)>Eir(Pb)>Eir(Cu)>Eir(Zn),其中以Cd污染最严重。植物根茎叶中的重金属含量因重金属元素的不同而不同,在根茎叶3个部位中,均是Zn的含量最高,其次是Pb。商陆、苦楝和葛藤对Cu、Cd、Pb、Zn的富集能力很强,可以作为治理此4种重金属污染土壤的富集植物;牛皮消和藜对Cu、Pb、Zn的治理能有一定效果;马兜铃和臭牡丹则能够作为Cd、Pb、Zn重金属污染生态治理的参考植物。
為瞭給重金屬汙染區域的植物恢複提供參攷依據,採集瞭株洲市霞灣港14種典型植物及其土壤,研究瞭植物中重金屬的分佈、汙染、遷移和積纍規律,髮現不同典型植物在重金屬汙染區域的生存特點,併採用潛在生態風險指數法,評價土壤重金屬汙染狀況,根據富集繫數和轉移繫數研究瞭植物中重金屬的分佈和轉移規律。結果錶明,多數土壤重金屬元素含量都明顯偏高,潛在生態危害依次為Eir (Cd)>Eir(Pb)>Eir(Cu)>Eir(Zn),其中以Cd汙染最嚴重。植物根莖葉中的重金屬含量因重金屬元素的不同而不同,在根莖葉3箇部位中,均是Zn的含量最高,其次是Pb。商陸、苦楝和葛籐對Cu、Cd、Pb、Zn的富集能力很彊,可以作為治理此4種重金屬汙染土壤的富集植物;牛皮消和藜對Cu、Pb、Zn的治理能有一定效果;馬兜鈴和臭牡丹則能夠作為Cd、Pb、Zn重金屬汙染生態治理的參攷植物。
위료급중금속오염구역적식물회복제공삼고의거,채집료주주시하만항14충전형식물급기토양,연구료식물중중금속적분포、오염、천이화적루규률,발현불동전형식물재중금속오염구역적생존특점,병채용잠재생태풍험지수법,평개토양중금속오염상황,근거부집계수화전이계수연구료식물중중금속적분포화전이규률。결과표명,다수토양중금속원소함량도명현편고,잠재생태위해의차위Eir (Cd)>Eir(Pb)>Eir(Cu)>Eir(Zn),기중이Cd오염최엄중。식물근경협중적중금속함량인중금속원소적불동이불동,재근경협3개부위중,균시Zn적함량최고,기차시Pb。상륙、고련화갈등대Cu、Cd、Pb、Zn적부집능력흔강,가이작위치리차4충중금속오염토양적부집식물;우피소화려대Cu、Pb、Zn적치리능유일정효과;마두령화취모단칙능구작위Cd、Pb、Zn중금속오염생태치리적삼고식물。
The author collected 14 kinds of typical plants and soil in Xiawan harbor of Zhuzhou City, researched the distribution of heavy metals in plants, pollution, migration and accumulation, and found the characteristics of different typical plants in heavy metal pollution regional, with a view to provide reference for plants restoration in heavy metal pollution area. With potential ecological risk index method to evaluate the soil heavy metal pollution, according to the bioconcentration factor and transfer coefficient of heavy metals in plants to know the distribution and transformation. The results showed that:the majority of soil heavy metal elements content were apparent on the high side, potential ecological risk in the following order:Eir(Cd)>Eir(Pb)>Eir(Cu)>Eir(Zn), among which Cd was the most serious. The heavy metal content was different in different parts of plants. In the three parts, Zn was the highest, followed by Pb. Pokeberry root, Melia azedarach and Pueraria lobata on Cu, Cd, Pb, Zn accumulation ability was very strong, could be used as heavy metals enrichment plants to control the four kinds of polluted soil. Cynanchum auriculatum and Chenopodiaceae could have certain effect on Cu, Pb, Zn; Aristolochiadebilis and Clerodendrum bungei could be used as heavy metal pollution reference plant of ecological management on Cd, Pb, Zn.