河北省曲周县第四疃镇土壤养分状况及空间分布特征

Soil Nutrient Status and Spatial Distribution Characteristics in Situan Town of Quzhou County in Heibei Province

以河北省曲周县第四疃镇为研究区,采用网格化取样的方法,在四疃镇共采集506份土壤,利用SPSS相关分析和Arcgis空间插值的研究方法,研究土壤速效钾、有效磷、全氮、pH和有机质含量状况和空间分布特征。结果表明,研究区土壤偏碱性,土壤肥力中等偏上,速效钾、全氮、有效磷含量丰富,其中全氮含量均达到极高水平,有机质属于中等水平。养分空间分布呈现西部含量最高、东南部碱性最强的特征。

Taking Situan Town in Quzhou County,Hebei Province as the study area,using grid sampling method,a total of 506 soil samples were collected in Situan Town,using SPSS and Arcgis spatial interpolation research methods,soil available potassium,effective phosphorus,total nitrogen,pH and organic matter content and spatial distribution characteristics were studied.The results showed that soil in the study area was alkaline,soil fertility was moderate,available potassium,total nitrogen and available phosphorus content was abundant,among which the whole nitrogen content reached the extremely high level,and the organic matter belonged to the medium level.The nutrient spatial distribution shows the highest content in the west and the most alkaline in the southeast.