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生态学杂志 ›› 2010, Vol. 29 ›› Issue (11): 2204-2209.

• 研究报告 • 上一篇    下一篇

模拟酸雨对广东赤红壤的中小型动物群落组成及多样性的影响

孟 磊,章家恩**,徐华勤,佟富春,谢俊芳,余家瑜,李宏哲   

  1. 华南农业大学农业部生态农业重点开放实验室,广东省高等学校农业生态与农村环境重点实验室, 广州 510642
  • 出版日期:2010-11-08 发布日期:2010-11-08

Impacts of simulated acid rain on community composition and diversity of small and medium-sized animals in lateritic red soil in Guangdong Province.

MENG Lei, ZHANG Jia-en, XU Hua-qin, TONG Fu-chun, XIE Jun-fang, YU Jia-yu, LI Hong-zhe   

  1. Key Laboratory of Ecological Agriculture of Ministry of Agriculture of the People’s Republic of China, Key Laboratory of Agro-ecology and Rural Environment of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou 510642, China
  • Online:2010-11-08 Published:2010-11-08

摘要: 采用样地小区法研究了模拟酸雨对广东赤红壤的中小型土壤动物多样性的影响,对不同pH值的模拟酸雨喷淋后的野外赤红壤样地中的土壤动物采用干、湿漏斗法进行了调查研究。结果表明:2008年12月1日—2009年3月1日间共捕获中小型土壤动物14997头,分属4门7纲13目,其中优势类群仅线虫纲1类,占全捕量的85.34%,常见类群是弹尾纲和蜱螨目,占13.46%,稀有类群有10类,占1.2%;不同pH值酸雨喷淋时土壤动物数量下降的幅度不同,pH值越低,土壤动物数量下降的幅度也越大;当pH值降至3.0时,土壤动物总个体数、多样性指数和对照相比差异显著。同时,还发现,在酸雨作用下,土壤动物有向土壤下层移动的倾向。

关键词: 霍林河流域湿地, 有机碳, 全氮, 空间分布特征, 生态效应

Abstract: In order to understand the impacts of acid rain on the community composition and diversity of small and medium-sized animals in lateritic red soil in Guangdong, a field plot experiment was set up, in which, the simulated acid rain was sprayed for 3 months, and the soil samples were collected once two weeks from December 1, 2008 to March 1, 2009. A total of 14997 small and medium-sized soil animals were captured, belonging to 4 phyla, 7 classes, and 13 orders. Nematoda was the only dominant group, accounting for 85.34%, and Collembola and Acarina were the common orders, occupying 13.46% of the total. There were 10 groups of rare orders, only taking a proportion of 1.2%. With the decreasing pH of acid rain, the individual number and biodiversity indices of the animals decreased. When the acid rain pH fell to 3.0, the total individual number and the diversity indices of the animals had a significant difference with those of the control. Our results also showed that the test soil animals had a trend to move down to the deeper soil layers under the impacts of acid rain.

Key words: Huolin River catchment wetland Soil organic carbon, Total nitrogen, Spatial distribution characteristics, Ecological effect