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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (8): 167-171.

所属专题： 园艺

• 林学 园艺 园林 • 上一篇    下一篇

长三角蔬菜种植区土壤有机质与氮素含量分析

孙晓 钟敏 庄舜尧   

  • 收稿日期:2010-07-27 修回日期:2010-08-30 出版日期:2011-04-20 发布日期:2011-04-20
  • 基金资助:

    国家科技支撑项目

Investigation of Organic Matter and Nitrogen of Vegetable Soils in the region of Yangtze River Delta

  • Received:2010-07-27 Revised:2010-08-30 Online:2011-04-20 Published:2011-04-20

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摘要：

调查了长江三角洲地区无锡、镇江、扬州、苏州、常州5市的蔬菜大棚和露地菜地种植情况，并采集了土壤样品分析测定有机质与氮素含量状况。结果表明：五市蔬菜地土壤中含有丰富的有机质与无机氮，而全氮含量则相对较低；随着土壤深度的增加，有机质与全氮均显著下降，而无机态氮则有一定的深层累积现象。蔬菜大棚要比露地积累更多的有机质及无机氮，但无显著差异。

关键词: 土地利用遥感监测, 土地利用遥感监测, IKONOS, QuickBird, 郑州市

Abstract:

The vegetable soils in greenhouses and open-air were collected for the investigation of organic matter and nitrogen contents in Wuxi, Zhenjiang, Yangzhou, Suzhou and Changzhou of Yangtze River Delta. The results showed that these vegetable soils were rich in organic matter and inorganic nitrogen, but the content of total nitrogen was relatively low. The content of organic matter and total nitrogen decreased with the increasing soil depth, however, the inorganic nitrogen was high in the deep layer soils due to leaching. Comparatively, there was no significant difference of soil organic matter and nitrogen between in the greenhouse and open-air field.