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目的了解2012—2016年甘肃省武威市农村土壤中蛔虫卵污染情况,为今后制定防控策略和措施提供科学依据。方法 2012—2016年,收集25个乡(镇)100个监测点400份土壤标本,用饱和硝酸盐漂浮法检测土壤蛔虫卵污染情况。结果 400份5~20 cm表层土壤标本中蛔虫卵检出分别为41.25%,22.50%,27.50%,25.00%和16.25%,差异有统计学意义(χ~2=14.04,P<0.05);活卵检出率分别为66.67%,66.67%,77.27%,65.00%和53.85%,检出率无变化,差异无统计学意义(χ~2=2.11,P>0.05);川区和山区土壤标本中蛔虫卵检出率分别为19.50%和33.50%,山区蛔虫卵检出率明显高于川区,差异有统计学意义(χ~2=10.06,P<0.05);活卵检出率分别为53.85%和74.63%,山区活卵检出率明显高于川区,差异有统计学意义(χ~2=4.81,P<0.05)。结论武威市农村土壤中蛔虫卵污染较重,在今后的防控工作中,应加强农村环境整治和粪便无害化处理工作。
Objective To understand the status of roundworm egg contamination in the soil of rural areas in Wuwei City, Gansu Province from 2012 to 2016, and to provide a scientific basis for future prevention and control strategies and measures. Methods From 2012 to 2016, 400 soil samples from 100 monitoring sites in 25 townships (towns) were collected and the soil ascaris egg contamination was detected by saturated nitrate flooding method. Results The results showed that the detection rates of ascaris eggs in 400 soil samples from 5 cm to 20 cm were 41.25%, 22.50%, 27.50%, 25.00% and 16.25% respectively, with significant difference (χ ~ 2 = 14.04, P <0.05) The detection rate of eggs was 66.67%, 66.67%, 77.27%, 65.00% and 53.85%, respectively. There was no significant difference in the detection rate (χ ~ 2 = 2.11, P> 0.05) The detection rate of ascaris eggs was 19.50% and 33.50%, respectively. The detection rate of ascaris eggs in mountainous areas was significantly higher than that in Sichuan. The difference was statistically significant (χ ~ 2 = 10.06, P <0.05). The detection rates of live eggs were 53.85% And 74.63% respectively. The detection rate of live egg in mountain area was significantly higher than that in Sichuan area (χ ~ 2 = 4.81, P <0.05). Conclusion The Ascaris suum eggs in the soil of Wuwei City are more serious in the soil. In the future prevention and control work, we should strengthen the rural environment remediation and the harmless treatment of manure.