全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
地质论评  2006 

马山县东部东岗岭组土壤砷的形态分析及其生态意义

Keywords: 东岗岭组土壤砷形态马山县红腺忍冬

Full-Text   Cite this paper   Add to My Lib

Abstract:

石灰土中高砷会影响岩溶生态系统吗?以广西马山县东部东岗岭组为例,根据岩性差异分层采取表土,测定水溶态、离子交换态、碳酸盐岩态、有机态、铁锰氧化物态、硫化物态砷和全量砷以及植物红腺忍冬中的砷。结果表明,东岗岭组土壤砷平均34.0μg/g,以下部最低,约23.3μg/g。硫化物砷是土壤砷的主要形态,占85%以上。有效态砷不足0.1%,与全量砷无相关关系。红腺忍冬花、叶、枝、茎砷分别为0.30、0.21、0.01、0.07μg/g,没有超标。东岗岭组土壤砷可能以5价无机硫化物砷为主,对中药材山银花危害轻,其原因为土壤高pH、富氧化铁、低磷,从而对砷强烈吸附。

References

[1]  谢正苗,黄昌勇,何振立.1998.土壤中砷的化学平衡.环境科学进展,6(1):22~37.
[2]  杨学春.1992.紫色土区重金属污染与迁移.农业环境保护,11(2):61.
[3]  Garcia-Sanchez A,Alvarez-Ayuso E.2003.Arsenic in soils and waters and its relation togeology and mining activities(Salamanca province,Spain).J.of GeochemicalExploration,80(1):69~79.
[4]  Marin AR,Masscheleyn P H,Patrick W H Jr.1992.The influence of chemical form andconcentration of arsenic on rice growth and tissue arsenic concentration.PlantSoil,139:175~183.
[5]  Robinson B,Duwig C,Bolan N,Kannathasan M,Saravanan A.2003.Uptake of arsenic by NewZealand watercresss (Lepidium sativum).The Science of the Total Environment,301(1~3):67~73.
[6]  Zhang Weihua,Cai Yong,Tu Cong and Ma Lena Q.,2002.Arsenic speciation and distributionin an arsenic hyperaccumulating plant.The Science of the Total Environment,300(1~3):167~177.
[7]  蔡保松,陈同斌,廖晓勇,谢华,肖细元,雷梅,张国平.2004.土壤砷污染对蔬菜砷含量及食用安全性的影响.生态学报,24(4):711~717.
[8]  陈静,王学军,朱立军.2003.pH值和矿物成分对砷在红土中迁移的影响.环境化学,22(2):121~125.
[9]  陈同斌.1996.土壤溶液中的砷及其与水稻生长效应的关系.生态学报,16(2):148~153.
[10]  雷梅,陈同斌,范稚连,等.2003.磷对土壤中砷吸附的影响.应用生态学报,14(11):1989~1992.
[11]  李道林,程磊.2000.砷在土壤中的形态分布与青菜的生物学效应.安徽农业大学学报,27(2):131~134.
[12]  翁焕新,张霄宇,邹乐君,张兴茂,刘广深.2000.中国土壤中砷的自然存在状况及其成因分析.浙江大学学报(工学版),34(1):88~92.
[13]  Alam M G M,Tokunaga S,Maekawa T.2001.Extraction of arsenic in a synthetic arseniccontaminated soil using phosphate.Chemosphere,43(8):1035~1041.
[14]  Bennett B,Dudas M J.2003.Release of arsenic and molybdenum by reductive dissolution ofiron oxides in soil with enriched levels of native arsenic.J.of Environmental Engineeringand Science,2(4):265~272.
[15]  Burlo F,Guijarro I,Barrachina A A C,Vlaero D.1999.Arsenic species:Effects on andaccumulation by tomato plants.J.Agric.Food Chem.,47:1247~1253.
[16]  Carbonell A A,Aarabi M A,Delaune R D,Gambrell R P,Patrick W H Jr.1998.Arsenic inwetland vegetation:Availability,phytotoxicity,uptake and effects on plant growth andnutrition.Sci.Total Environ.,217:189~199.
[17]  Chen M,Ma L Q,Harris W G.2002.Arsenic concentrations in Florida surfacesoils:Influence of soil type and properties.Soil Sci.Soc.Am.J.,66:632~640.
[18]  Dudka S,Miller W P.1999.Permissible concentrations of arsenic and lead in soils basedon risk assessment.Water,Air and Soil Pollution,113(1/4):127~132(6).
[19]  Sadiq M.1997.Arsenic chemistry in soils:an overview of thermodynamic predictions andfield observation.Water,Air and Soil Pollution,93(1~4):117~136.
[20]  Warren G P,Alloway B J,Lepp N W,et al.2003.Field trials to assess the uptake ofarsenic by vegetables from contaminated soil and remediation with iron oxides.The Scienceof the Total Environment,311(1~3):19~33.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133