地理科学 ›› 2012, Vol. 32 ›› Issue (10): 1254-1261.doi: 10.13249/j.cnki.sgs.2012.010.1254

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黄河三角洲石油污染对湿地芦苇和碱蓬幼苗生长影响的模拟研究

于君宝1(), 阚兴艳1,2, 王雪宏1,2, 韩广轩1, 管博1, 谢文军3, 林乾新4   

  1. 1. 中国科学院烟台海岸带研究所,中国科学院海岸带环境过程重点实验室,山东省海岸带环境过程重点实验室,山东 烟台 264003
    2. 中国科学院研究生院, 北京 100049
    3. 滨州学院山东省黄河三角洲生态环境重点实验室,山东 滨州 256600
    4. Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
  • 收稿日期:2011-09-15 修回日期:2011-11-23 出版日期:2012-10-20 发布日期:2012-10-20
  • 作者简介:

    作者简介:于君宝(1970-),吉林长春人,博士,研究员,主要从事湿地生物地球化学与生态修复研究。E-mail:Junbao.yu@gmail.com

  • 基金资助:
    中国科学院-国家外国专家局创新团队国际合作伙伴计划、山东省自然科学杰出青年基金项目(JQ201114)、中国科学院知识创新工程重要方向项目 (KZCX2-YW-223;KZCX2-YW-359)、中国科学院百人计划项目和十二五”国家科技支撑计划项目(2011BAC02B01)

Simulative Study on Effects of Petroleum Contamination on Seedling Growth of Phragmites australis and Suaeda salsa in Coastal Wetland of Yellow River Delta

Jun-bao YU1(), Xing-yan KAN1,2, Xue-hong WANG1,2, Guang-xuan HAN1, Bo GUAN1, Wen-jun XIE3, Qian-xin LIN4   

  1. 1. Key Laboratory of Coastal Zone Environmental Processes, Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences,Yantai,Shandong 264003, P. R. China
    2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China
    3. Shandong Provincial Key Laboratory of Ecology and Environment of Yellow River Delta, Binzhou University, Binzhou 256603, China
    4. Department of Oceanography and Coastal Sciences, Louisiana State University, Baton Rouge, LA 70803, USA
  • Received:2011-09-15 Revised:2011-11-23 Online:2012-10-20 Published:2012-10-20

摘要:

黄河三角洲湿地是中国最具代表性的滨海湿地之一,也是中国第二大油田——胜利油田的产油区,石油污染已成为本区湿地生态系统退化的重要因子。在温室条件下模拟研究了该区滨海湿地土壤中2种不同浓度(0.5%、2.0%)石油污染对黄河三角洲地区典型物种芦苇(Phragmites australis)和盐地碱蓬(Suaeda salsa)幼苗生长的影响。结果表明,随着石油浓度的增高,芦苇和盐地碱蓬株高的受抑制程度不断增强,随着时间的推移,石油污染对芦苇分蘖的抑制作用减弱,而对盐地碱蓬幼苗的分枝数抑制作用加大。随石油浓度的增加,盐地碱蓬幼苗叶片中可溶性蛋白质含量先升高后降低,丙二醛含量和过氧化物酶活力先降低后升高,过氧化氢酶活力显著降低;芦苇幼苗则对石油污染表现出相对较强的耐受性。不同石油污染条件下芦苇幼苗叶片叶绿素含量表现出先下降后升高的变化趋势。从整体上来看,石油烃类污染对盐地碱蓬幼苗的抑制作用要高于芦苇幼苗,也说明在处理石油烃类污染物中芦苇比碱蓬更具有优势。

关键词: 黄河三角洲湿地, 石油污染, 芦苇, 盐地碱蓬, 模拟研究

Abstract:

The Yellow River Delta is a typical and representative coastal wetland in China. As the Shengli Oil Field, which is the second largest oil field in China, locates in the region, the crude oil contamination has become a key reason which causes deterioration of coastal wetland ecological system in this area. A simulative study was conducted to explain the effects of different concentration of petroleum (0.5%、2.0%) contaminated wetland soils on growth of reed(Phragmites australis)and seepweed (Suaeda salsa) seedling in the greenhouse. The soil samples without oil pollution were collected in coastal wetlands in the Yellow River Delta of soils in May 2010. The soil oil pollution levels was controlled by three oil concentration (0%, 0.5%, 2.0%) in the simulative experiment in greenhouse, four replicates for each treatment. The crude oil in experiments collected from the Shengli Oil Field production wells. The typical representative plants of reed and seepweed in coastal wetlands in the Yellow River Delta were cultivated in the different soil treatments, respectively. The reed was planted with root with same buds and the seepweed seed was sowed (0.5 g per pot). During experiment period, the seedling height of both reed and seepweeed, tillering number of reed, leaf number and branch number of seepweed were recorded. The soluble protein content, Catalase activity (CAT) activities, peroxidase activity (POD) activities, malondialdehyde (MDA) content, Chlorophyll (Chl) content of seedling leaves were determined, then the ratio of chl-a/ chl-b was calculated. The results showed that, with increasing petroleum concentration, the inhibitory effects of petroleum for plant height of reed and seepweed were increased. The inhibitory effects of petroleum contamination on reed tillering number were weakened with time, while that functions on seepweed branch number were strengthened. With increasing oil concentration in soils, the soluble protein content in seedling leaves of seepweed was decline after increase, while the opposite regulars were observed for MDA content and POD activities, and the CAT activities was decreased obviously. Compared to seepweed seedling, the reed seedling appeared high oil contamination tolerance. The Chl content in reed seedling leaves shows a trend of increase after decline with time under different condition of oil contamination. In generally, the inhibitory effects of soil oil contamination for seepweed seedling were higher than that for reed seedling. It indicated that the reed was much more suitable for restoration of oil contaminated soil than seepweed. Our results suggested that both reed and seepweed with high salt-tolerance properties could be extensively applied in soil restoration of oil contamination regions in the coastal wetland of Yellow River Delta.

Key words: wetland of Yellow River Delta, petroleum contamination, Phragmites australis, Suaeda salsa, simulative study

中图分类号: 

  • X142