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中国农学通报 ›› 2019, Vol. 35 ›› Issue (17): 48-53.doi: 10.11924/j.issn.1000-6850.casb18050038

所属专题: 现代农业发展与乡村振兴

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

基于GIS和地统计学的黔西北农业园区土壤养分空间变异特征研究

吴美玲, 田晋文   

  1. 贵州省毕节市农业科学研究所
  • 收稿日期:2018-05-09 修回日期:2019-02-28 接受日期:2019-03-18 出版日期:2019-06-25 发布日期:2019-06-25
  • 通讯作者: 吴美玲
  • 基金资助:
    贵州省科技计划(项目)“基于GIS的农业园区蔬菜精准施肥配方系统研究”黔科合NY[2014]3035号。

Spatial Variation Characteristics of Soil Total Nitrogen and Organic Matter in agricultural demonstration zone of Northwest in Guizhou Based on GIS and Geostatistics

吴美玲   

  • Received:2018-05-09 Revised:2019-02-28 Accepted:2019-03-18 Online:2019-06-25 Published:2019-06-25

摘要: 以黔西县水西观光农业示范园区(乌骡坝社区)为研究区域,采用地统计学方法,研究了黔西北山区土壤pH值、有机质、碱解氮、有效磷、速效钾、全氮、全磷、全钾的土壤养分状况及空间变异规律。结果表明:(1)土壤pH值表现为弱变异性,其余各项指标变异均属于中等程度变异;(2)土壤pH、有机质、碱解氮、有效磷、速效钾和全氮均是中部分布较低,全磷是中部分布较高,有机质是北部和南部分布较高;速效钾是东部分布较高,全氮和全钾北部分布最高;(3)土壤有机质C0 /(C0 +C)=31.935%,表现为中等空间相关性,其余各土壤养分指标均表现为强烈的空间相关性。

关键词: 牛, 牛, 早期胚胎, 体外发育, 前列腺素合成酶抑制剂, PGE2

Abstract: Using geo-statistics methods,an invstigation was conducted on the spatial variability of soil pH, organic matter, t available N, P, K, and total N, P, K in Shuixi Sightseeing agriculture demonstration zone of Qianxi County (Wuluoba Communities). The results showed that pH was weak variability and the reaining indicators were medium variability, pH, organic matter, t available N, P, Kand total N were lower distributiton in the central region, organic matter were higher distribution in northern and southern regions, available K was high est distribution in eastern region, total N ,K were highest distribution in northern regions.The C0 /(C0 + C) was 31.935% of organic matter, showing a medium spatial correlation, and the reaining indicators indicating showing strong spatial correlations.