生物多样性 ›› 2008, Vol. 16 ›› Issue (6): 613-617.DOI: 10.3724/SP.J.1003.2008.08128

• 论文 • 上一篇    下一篇

安徽农药厂厂区及周边农田土壤线虫数量特征

周际海, 陶军, 陈小云, 胡锋, 李辉信*   

  1. (南京农业大学资源与环境科学学院, 南京 210095)
  • 出版日期:2008-11-20 发布日期:2008-11-20
  • 通讯作者: 李辉信

Soil nematode density inside and outside a pesticide factory in Anhui

Jihai Zhou, Jun Tao, Xiaoyun Chen, Feng Hu, Huixin Li*   

  1. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095
  • Online:2008-11-20 Published:2008-11-20
  • Contact: Huixin Li

摘要: 为了解农药对不同植被下的土壤健康和土壤质量的影响, 在2006年10月对安徽省和县华星化工股份有限公司内外不同土地利用方式下土壤线虫数量和营养类群进行了调查, 包括厂内裸地(BIF)、厂内宝塔松林地(PIF)、厂外裸地(BOF)、厂外大豆地(SOF)、厂外水稻地(POF)、厂外玉米地(COF)。结果发现有植被覆盖的样地中土壤线虫总数显著多于裸地(P<0.01), 厂外裸地显著高于厂内裸地。在有植被覆盖的土壤中植物寄生类线虫为优势类群, 其中厂内松林地内植物寄生类线虫相对丰度最高, 达到84%。在裸地中以食细菌类线虫为优势类群, 厂外裸地和厂内裸地相对丰度分别为74%和72%。此次调查表明农药的过多使用会对土壤线虫的数量和相对丰度产生影响, 同时说明植被覆盖在减轻农药使用造成的环境污染中起着重要作用。

关键词: 中国野驴(蒙古野驴、西藏野驴), 濒危物种, 新疆, 西藏, 青海, 内蒙古

Abstract: Soil nematodes are useful as indicators of soil health. To understand the contribution of overuse of pesticides to soil pollution, we investigated the total number and relative abundance of soil nematodes in several different land use types with different degrees of pesticide use. These different land use types, found inside and outside the factory of Anhui Huaxing Chemical Industry Co., Ltd. in Hexian county, Anhui Province, China, include bare land inside the factory (BIF), stands of pagoda pine (Pinus armandii) trees inside the factory (PIF), bare land outside the factory (BOF), soybean field outside the factory (SOF), paddy field outside the factory (POF), and corn field outside the factory (COF). Soil nematode numbers varied greatly among landuse types, and when ranked in order of greatest to lowest number were PIF>SOF>COF>POF>BOF>BIF. Total count of soil nematodes was higher in lands with vegetation than in bare lands (P<0.01). The number of trophic levels except bacterivores and predators/omnivores were higher in areas with vegetation coverage. Land uses with vegetation coverage had the largest number of plant-parasites while bare land had the largest number of bacterivores. Relative abundance of plant-parasites of PIF was 84% while relative abundance of bacterivores of BOF and BIF were 74% and 72%, respectively. Taken together, these results indicate overuse of pesticides has an effect on the amount and relative abun-dance of soil nematodes, and an important role for vegetation coverage in mitigating environment pollution.

Key words: Chinese wild ass (Equus hemionus, E. kiang), endangered species, Xinjiang, Tibet, Qinghai, Inner Mongolia