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冶金区节肢动物碳、氮稳定同位素组成及营养级关系

郑冬梅**,孙丽娜,李卉颖,李昕馨   

  1. (沈阳大学区域污染环境生态修复教育部重点实验室, 沈阳 110044)
  • 出版日期:2013-07-10 发布日期:2013-07-10

Carbon  and nitrogen stable isotopes composition and its relationships with trophic levels of arthropods in smelting areas.

ZHENG Dong-mei**, SUN Li-na, LI Hui-ying, LI Xin-xin   

  1. (Key Laboratory of Ecoremediation of Contaminated Environment and Resource Reuse, Shenyang University, Shenyang 110044, China)
  • Online:2013-07-10 Published:2013-07-10

摘要: 通过测定辽宁省葫芦岛锌厂不同生境植物和主要消费者的碳、氮稳定同位素比值,研究冶金区不同消费者碳、氮稳定同位素组成及不同消费者之间的关系。结果表明:节肢动物δ13C、δ15N值的变化范围分别为-12.61‰~-29.63‰、1.73‰~9.94‰,变化幅度较大。研究区植物以C3植物居多,导致不同群落生境动物δ13C值较低;螳螂、蜘蛛δ15N比值高于其他动物;通过营养级模型计算可知不同消费者之间的关系,蝗虫、蚱蜢等草食性动物形成第二营养级,即初级消费者;第三营养级包括蜘蛛、螳螂,为次级消费者。

关键词: 小麦, 倒伏指数, 纤维素, 木质素, 抗倒性

Abstract: By measuring the δ13C and δ15N ratios of plants and their main consumers in different habitats of Huludao Zinc Plant, Liaoning Province of Northeast China, this paper studied the relationships between the carbon  and nitrogen stable isotopes composition of different consumers and the consumers. In the study area, the δ13C and δ15N values of arthropods had a greater variation range, being -12.61‰--29.63‰ and 1.73‰-9.94‰, respectively. The C3 plants were dominant, which led to the lower δ13C values of the animals in different habitats. The δ15N values of Argiope bruennichii and Paraten odera sinensis were higher than those of the other animals. According to the trophic model, herbivores (Locusta migratoria manilensis and Acrida chinensis) were at the second trophic level, i.e., the primary consumers, whereas A. bruennichii and P. odera sinensis were at the third trophic level, i.e., the secondary consumers.

Key words: wheat, lodging index, lignin., lodging resistance, hemicelluloses