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中国农学通报

中国农学通报 ›› 2014, Vol. 30 ›› Issue (33): 219-224.doi: 10.11924/j.issn.1000-6850.2014-1220

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

张掖地区土壤微量元素空间分布及其对农产品质量的影响

周 俊,杨子凡,董 博,牛 怡   

  1. 甘肃农业大学,,
  • 收稿日期:2014-04-25 修回日期:2014-11-24 接受日期:2014-08-18 出版日期:2015-01-08 发布日期:2015-01-08
  • 通讯作者: 杨子凡
  • 基金资助:
    甘肃省科技支撑计划 “旱作农田精确施肥技术研究” (1104NKCA093)。

Spatial Distribution of Soil Trace Elements and Its Effect on the Quality of Agricultural Products of Zhangye Region

  • Received:2014-04-25 Revised:2014-11-24 Accepted:2014-08-18 Online:2015-01-08 Published:2015-01-08

摘要： 对张掖市甘州区、临泽县、高台县、民乐县、肃南县及农场耕层土壤进行取样分析，共测试分析789个土样的有效铁、有效锰、有效铜、有效锌和有效硼五项微量元素指标。对测试结果采用Normal-QQplot方法进行正态分布检验，剔除了14个异常离群值。对剩余的775个测试分析数据用地统计普通克里金插值法进行空间插值，根据各微量元素的空间分布和缺素临界值，把五种微量元素按照含量空间分布划分为丰富、持平和不足三个级别。并依据不同级别的肥力区和作物缺素症状，提出各肥力区对农产品质量的影响以及施肥方案，为张掖市作物微肥施用提供参考。

关键词: 艾比湖湿地自然保护区, 艾比湖湿地自然保护区

Abstract: The available contents of microelements Fe, Mn, Cu, Zn and B were analyzed in 789 soil samples which were selected from different farm soil of Ganzhou District, Linze County, Gaotai County, Minle County and Sunan County in Zhangye area. The normal distribution test of Normal-QQplot was applied to eliminate 14 abnormal outliers. The 775 remaining data were analyzed using statistical ordinary Kriging interpolation test. In line with the spatial distribution of trace element and nutrient deficient critical value, five kinds of trace elements were divided according to the content spatial-distribution into three levels: rich, balanced and less. On the basis of different levels of fertility and crop nutrient deficiency symptom, the author concluded the influence of different fertility areas on agricultural products quality and put forward corresponding fertilization programs, in order to provide a reference for crop fertilizer application of Zhangye City.