我国西南地区森林土壤中有机氯农药和多氯联苯残留的初步研究
A Preliminary Study on Residues of Organochlorine Pesticides and Polychlorinated Biphenyls in Forest Soils of Southwest China
查看参考文献27篇
|
文摘
|
对西南地区森林土壤中有机氯农药和多氯联苯的分布和剖面进行了区域尺度分析。相比较发达国家和地区,我国西南地区森林土壤中有机氯农药含量水平较高,多氯联苯则相对较低。这与我国此类持久性有机污染物历史使用情况吻合。多氯联苯和有机氯农药在腐殖质层的含量一般高于表层土壤中,说明淋溶作用导致污染物向下移动。DDTs和HCHs是土壤样品中有机氯农药的主要成分,说明我国历史上长期施用农药对森林土壤农药的组成有显著影响。环境参数(包括TOC、降雨量和海拔高度)对大多数有机氯农药的区域空间分布的作用并不显著,周边污染源是控制有机氯农药在腐殖质层土壤中分布的关键因素;尤其是DDTs,比值分析结果显示仍有新鲜的工业滴滴涕输入。多氯联苯在腐殖质层中的含量明显要高于其在表层土壤中的含量,多氯联苯在土壤中的空间分布和土层中的垂直分布主要受土壤TOC含量的控制。以大气干湿沉降来源贡献为主的多氯联苯与土壤中的有机质有效结合会降低它们的再挥发过程,表明西南地区山地森林对多氯联苯具有一定森林过滤效应。 |
|
其他语种文摘
|
The regional distributions and profiles of organochlorine Pesticides(OCPs)and Polychlorinated biphenyls(PCBs)in forest soils from southwest China were analyzed.The concentrations of OCPs in the study area were at a higher level compared with those in background areas,which is consistent with the heavily application of OCPs in China,but concentrations of PCBs were relatively lower.The concentrations of PCBs and OCPs in the humus layer soil were generally higher than those in the surface soil,partly due to the leaching effect.DDTs and HCHs were the main components of OCPs in soil samples,indicating that the long-term application of pesticides in China had a significant impact on the composition of OCPs in forest soils.Environmental parameters(including TOC,rainfall and altitude)have no significant effect on the regional spatial distribution of most OCPs.The distribution of OCPs in the humus layer soil was mainly controlled by surrounding pollutions of pesticides.The DDTs ratio analysis indicated that fresh industrial DDT inputs still existed.The concentrations of PCBs in humus layer soils were significantly higher than those in surface soils,and the spatial distribution and vertical distribution of PCBs in soils were mainly controlled by the TOC content.PCBs,mainly derived from atmospheric dry/wet depositions,can effectively combine with organic matter in soils and reduce their re-volatilization.The result also suggests that mountain forests in southwest China have a certain cold trapping effect on PCBs. |
|
来源
|
地球与环境
,2020,48(1):129-136 【核心库】
|
|
DOI
|
10.14050/j.cnki.1672-9250.2020.48.011
|
|
关键词
|
多氯联苯
;
有机氯农药
;
森林土壤
;
西南地区
|
|
地址
|
1.
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550081
2.
中国科学院大学, 北京, 100049
3.
华南农业大学资源环境学院环境科学与工程系, 广州, 510642
4.
中国科学院水利部成都山地灾害与环境研究所, 成都, 610041
5.
中国科学院广州地球化学研究所, 有机地球化学国家重点实验室, 广州, 510640
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1672-9250 |
|
学科
|
林业 |
|
基金
|
国家自然科学基金项目
|
|
文献收藏号
|
CSCD:6671866
|
参考文献 共
27
共2页
|
|
1.
Hu G C. Organochlorine compounds and polycyclic aromatic hydrocarbons in surface sediment from Baiyangdian Lake, North China: Concentrations, sources profiles and potential risk.
Journal of Environmental Sciences,2010,22(2):228-234
|
CSCD被引
1
次
|
|
|
|
|
2.
刑颖. 中国部分水域沉积物中多氯联苯污染物的空间分布、污染评价及影响因素分析.
环境科学,2006,27(2):228-234
|
CSCD被引
1
次
|
|
|
|
|
3.
Holoubek I. Soil burdens of persistent organic pollutants: Their levels, fate and risk. Part I. Variation of concentration ranges according to different soil uses and location.
Environmental Pollution,2009,157(12):3207-3217
|
CSCD被引
4
次
|
|
|
|
|
4.
Jiang H. Modelling the spatialpattern of net primary productivity in Chinese forests.
Ecological Modelling,1991,122(3):275-288
|
CSCD被引
1
次
|
|
|
|
|
5.
Li Y F. Polychlorinated biphenyls in global air and surface soil: Distributions, air-soil exchange, and fractionation effect.
Environmental Science & Technology,2009,44(8):2784-2790
|
CSCD被引
2
次
|
|
|
|
|
6.
Meijer S N. Influence of environmentalvariables on the spatial distribution of PCBs in Norwegian and UK soils: Implications for globalcycling.
Environmental Science & Technology,2002,36(10):2146-2153
|
CSCD被引
14
次
|
|
|
|
|
7.
Aichner B. Levels and spatial distribution of persistent organic pollutants in the environment: A case study of German forest soils.
Environmental Science & Technology,2013,47(22):12703-12714
|
CSCD被引
5
次
|
|
|
|
|
8.
Li J. Concentrations, enantiomeric compositions, and sources of HCH, DDT and chlordane in soils from the Pearl River Delta, South China.
Science of the Total Environment,2006,372(1):215-224
|
CSCD被引
57
次
|
|
|
|
|
9.
Weiss P. Regional aspects and statistical characterisation of the load with semivolatile organic compounds at remote Austrian forest sites.
Chemosphere,2000,40(9/11):1159-1171
|
CSCD被引
8
次
|
|
|
|
|
10.
Cabrerizo A. Soil-Air exchange controls on background atmospheric concentrations of organochlorine pesticides.
Atmospheric Chemistry and Physics,2011,11(24):12799-12811
|
CSCD被引
9
次
|
|
|
|
|
11.
Daly G L. Pesticides in western Canadian mountain air and soil.
Environmental Science & Technology,2007,41(17):6020-6025
|
CSCD被引
17
次
|
|
|
|
|
12.
Dearth M A. Complete analysis of technical chlordane using negative ionization mass spectrometry.
Environmental Science & Technology,1991,25(2):245-254
|
CSCD被引
4
次
|
|
|
|
|
13.
Meijer S N. Organochlorine pesticide residues in archived UK soil.
Environmental Science & Technology,2001,35(10):1989-1995
|
CSCD被引
20
次
|
|
|
|
|
14.
Liu H. Currently used organochlorine pesticides in Mianzhu-Aba prefecture transect, eastern of the Tibetan Plateau, western China.
Journal of Geochemical Exploration,2015,150:115-124
|
CSCD被引
2
次
|
|
|
|
|
15.
Tremolada P. POPs in mountain soils from the Alps and Andes: Suggestions for a 'precipitation effect' on altitudinal gradients.
Water Air and Soil Pollution,2008,188(1/4):93-109
|
CSCD被引
11
次
|
|
|
|
|
16.
Fang J. Changes in forest biomass carbon storage in China between 1949 and 1998.
Science,2001,292(5525):2320-2322
|
CSCD被引
175
次
|
|
|
|
|
17.
Salihoglu G. Spatial and temporal distributionof polychlorinated biphenyl (PCB) concentrations in soils of an industrialized city in Turkey.
Journal of Environmental Management,2011,92(3):724-732
|
CSCD被引
4
次
|
|
|
|
|
18.
Meijer S N. Global distribution and budget of PCBs and HCB in background surface soils: Implications orsources and environmental processes.
Environmental Science & Technology,2003,37(4):667-672
|
CSCD被引
49
次
|
|
|
|
|
19.
Moeckel C. Persistent organic pollutants in boreal and montane soil profiles: Distribution, evidence of processes and implications for global cycling.
Environmental Science & Technology,2008,42(22):8374-8380
|
CSCD被引
8
次
|
|
|
|
|
20.
Zhang A. Spatial distribution of hexachlorocyclohexanes in agricultural soils in Zhejiang Province, China, and correlations with elevation and temperature.
Environmental Science & Technology,2011,45(15):6303-6308
|
CSCD被引
4
次
|
|
|
|
|
了解气象卫星更多信息，请访问