不同管理模式对温室土壤螨群落结构的影响

发布时间：2019-07-25 18:52

【摘要】：为了解日光温室内不同农业管理模式对土壤螨群落的影响,以日光温室长期定位试验为研究对象,于2012年8月至2012年12月进行了5次取样,调查了有机(ORG)、无公害(LOW)和常规(CON)管理模式下土壤螨的丰度与群落结构。结果显示:管理模式对螨的丰度、各亚目的比例、菌食性隐气门螨和捕食性螨比例均无显著影响,仅对菌食性非隐气门螨和食线虫螨有显著影响。土壤螨的总数及各营养类群的数量呈现不同程度的时间波动,且波动程度在不同的管理模式下存在差异。粉螨是温室土壤中最为丰富的类群(平均37.8%)。尽管螨的类群数目呈现ORG(26)LOW(21)CON(18)的趋势,但香农指数和优势度指数没有显著变化。总之,在高投入、高扰动日光温室环境中,管理模式对土壤螨的数量和群落结构影响均较小。
[Abstract]:In order to understand the effects of different agricultural management models on soil mites community in solar greenhouse, five samples were conducted from August 2012 to December 2012 to investigate the abundance and community structure of soil mites under organic (ORG), pollution-free (LOW) and conventional (CON) management models. The results showed that the management model had no significant effect on the abundance of mites, the proportion of each suborder, the proportion of phytophagus and predation mites, but only on the non-cryptosporidium mites and nematode mites. The total number of soil mites and the number of each nutritional group fluctuated in different degrees, and the fluctuation degree was different under different management modes. Acaroid mites are the most abundant group in greenhouse soil (average 37.8%). Although the population number of mites showed the trend of ORG (26) LOW (21) CON (18), there was no significant change in Shannon index and dominance index. In a word, in the environment of high input and high disturbance solar greenhouse, the management model has little effect on the number and community structure of soil mites.
【作者单位】：北京市农林科学院植物营养与资源研究所;中国农业大学资源与环境学院;
【基金】：科技部科技支撑项目(2012BAD14B01) 农业部行业专项项目(201303089-2) 环保公益性行业科研专项项目(2013467036)
【分类号】：S154

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