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首页> 外文会议>2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring >Studies on the Tendency of Soil Environmental Quality in Suburban Vegetable Base of Chengdu
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Studies on the Tendency of Soil Environmental Quality in Suburban Vegetable Base of Chengdu

机译：成都市郊区蔬菜基地土壤环境质量趋势研究

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Surveys has been developed for the quality of the soil environment in the vegetable plot, choosing some vegetable bases in Chengdu¡¯s suburb- Pengzhou as the study area. In order to analyze the changing trend of soil environmental quality in the suburban vegetable base, comparisons from the soil pH, soil nutrient composition, soil heavy metals to pesticide residues have been made with the previous results which were published in the Second National Soil Survey in 1984. The results show that compared with 1984, nowadays (2009) the soil pH is significantly declined and the soil(pH ¡Ü 6.0) accounts is nearly as much as 82.35% of all the soil studied in Pengzhou, as for the nutrient content, total nitrogen, ammonium nitrogen, available phosphorus and potassium in the pick-up soil have been improved respectively, while the organic matter content has been lowered obviously, in the heavy metal content survey, almost all the kinds of metal involved here are increased except Hg. The conclusion can be made: in recent 25years, the soil environmental quality of the vegetable base in Pengzhou is overall becoming worse and worse.
机译：已经开发了蔬菜地土壤环境质量的调查，以成都郊区彭州的一些蔬菜基地为研究区域。为了分析郊区蔬菜基地土壤环境质量的变化趋势，从土壤pH值，土壤养分组成，土壤重金属到农药残留量进行了比较，并与先前发表于2004年第二次全国土壤调查的结果相比较。 1984年的结果表明，与1984年相比，如今（2009年）的土壤中pH值显着下降，pH值6.0左右的土壤中养分含量几乎占彭州所研究土壤的82.35％。地上土壤总氮，铵态氮，有效磷和钾分别得到改善，而有机质含量明显降低，在重金属含量调查中，除此以外的几乎所有金属种类都增加了。汞可以得出的结论是：最近25年，彭州蔬菜基地的土壤环境质量总体上越来越差。

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