Effects of Exposion to Fine Particles of Pb and Cd on Early Growth of Rice and Potatoes

Q3 Agricultural and Biological Sciences

农业资源与环境学报 Pub Date : 2017-08-01 DOI:10.13254/J.JARE.2017.0147

Yang Fan, Yang He-xing, Wang Ying-zhi, Liu Ya-nan, Yang Xi-chen

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引用次数: 0

Abstract

为大气环境污染及环境危害评估。 E-mail:wukong6106@163.com 摘要:大气含重金属细颗粒物对陆生植物的早期生长有负面影响。通过搭建合理的暴露场景,在植物早期生长阶段,模拟不同程度大气污染条件,评价含 Pb、Cd重金属细颗粒物对水稻、马铃薯 2种受试植物出苗、幼苗生长和鲜重(陆上茎叶和地下块茎两部分)等生物量的影响。结果显示,暴露处理组人工土壤 Cd、Pb元素浓度在试验结束时均有增加,其中 Cd元素浓度比背景值增加了约 8.8倍,Pb元素浓度增加相比背景值不明显。水稻陆上茎叶部分对 Cd、Pb的富集量分别为 0.002 0 mg·kg-1和 0.054 mg·kg-1;马铃薯地下块茎部分对 Cd、Pb的富集量分别为 0.185 0 mg·kg-1和 0.074 mg·kg-1。暴露处理后对水稻的各生物量终点抑制效应不明显, 而对马铃薯地下块茎鲜重的抑制率达到 27%。由此可见,在模拟暴露条件下,人工土壤 Cd污染元素浓度变化较大,马铃薯地下块茎对 Cd元素富集效应明显。与空白对照组相比,暴露处理导致的 Pb-Cd重金属复合污染对于马铃薯地下块茎生物量有显著的抑

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铅和镉细颗粒对水稻和马铃薯早期生长的影响

Assessment of atmospheric pollution and environmental hazards. Email: wukong6106@163.com Abstract: The presence of heavy metal fine particles in the atmosphere has a negative impact on the early growth of terrestrial plants. By establishing a reasonable exposure scenario and simulating different levels of atmospheric pollution conditions during the early growth stage of plants, evaluate the effects of heavy metal fine particles containing Pb and Cd on the biomass of rice and potato, including seedling emergence, seedling growth, and fresh weight (both terrestrial stems and leaves and underground tubers). The results showed that the concentrations of Cd and Pb elements in the artificial soil of the exposure treatment group increased at the end of the experiment, with Cd element concentration increasing by about 8.8 times compared to the background value, while the increase in Pb element concentration was not significant compared to the background value. The enrichment levels of Cd and Pb in the stems and leaves of rice on land were 0.0020 mg · kg-1 and 0.054 mg · kg-1, respectively; The enrichment levels of Cd and Pb in the underground tuber of potatoes were 0.185 0 mg · kg-1 and 0.074 mg · kg-1, respectively. After exposure treatment, the inhibitory effect on the various biomass endpoints of rice was not significant, while the inhibitory rate on the fresh weight of potato underground tubers reached 27%. It can be seen that under simulated exposure conditions, the concentration of Cd pollution elements in artificial soil changes significantly, and the underground tubers of potatoes have a significant effect on Cd enrichment. Compared with the blank control group, the combined pollution of Pb Cd heavy metals caused by exposure treatment significantly inhibited the biomass of potato underground tubers

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来源期刊

农业资源与环境学报 Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.90

自引率

0.00%

发文量

4438

审稿时长

24 weeks

期刊介绍： Journal of Agricultural Resources and Environment (CN 12-1437/S, ISSN 2095-6819) is a national academic scientific and technical journal. It was founded in 1984, and used to be called Foreign Agricultural Environmental Protection and Agricultural Environment and Development. It is supervised by the Ministry of Agriculture and Rural Affairs, and co-sponsored by the Scientific Research and Monitoring Institute of Environmental Protection of the Ministry of Agriculture and Rural Affairs, and the China Association of Agricultural Ecological Environmental Protection. The journal is one of China's high-quality science and technology journals, China Science Citation Database (CSCD) core journals, Peking University Chinese core journals, China Science and Technology core journals, China Agricultural and Forestry core journals, and Tianjin Outstanding Journals. It is included in the international authoritative databases, such as Scopus database of the Netherlands, the database of the Center for International Agricultural and Biological Sciences Research (CABI) of the United Kingdom, the Stephens Database (EBSCOhost) of the United States, the Ulrichsweb (Ulrich's Guide to Journals) of the United States, EuroPub of the United Kingdom, the Abstracts Journal (AJ) of the Russian Federation, and the Copernicus Index (IC) of the Poland, and so on.