CAJ | 학술논문

为了解邵阳市植烟土壤速效钾含量分布状况,测试了邵阳市1790个土壤样本的速效钾含量,采用经典统计学和地统计学方法分析了邵阳市植烟土壤速效钾含量及在县域、空间、pH组、有机质组的分布。结果表明：①邵阳市植烟土壤速效钾含量总体上处于偏低水平,平均值为113.75 mg/kg,变异系数为50.40%,处于适宜范围内的样本占12.01%；于邵阳县和新宁县植烟土壤速效钾含量极显著高于隆回县；③植烟土壤速效钾含量总体上呈斑块状分布态势,以植烟土壤速效钾含量100.00~130.00 mg/kg为主要分布面积；榆不同pH组的植烟土壤速效钾含量差异不显著；虞植烟土壤有机质含量在35 g/kg以下时,土壤速效钾含量有随有机质增加而增加的趋势；植烟土壤有机质含量在35 g/kg以上时,土壤速效钾含量有随有机质增加而减少的趋势。
위료해소양시식연토양속효갑함량분포상황,측시료소양시1790개토양양본적속효갑함량,채용경전통계학화지통계학방법분석료소양시식연토양속효갑함량급재현역、공간、pH조、유궤질조적분포。결과표명：①소양시식연토양속효갑함량총체상처우편저수평,평균치위113.75 mg/kg,변이계수위50.40%,처우괄의범위내적양본점12.01%；우소양현화신저현식연토양속효갑함량겁현저고우륭회현；③식연토양속효갑함량총체상정반괴상분포태세,이식연토양속효갑함량100.00~130.00 mg/kg위주요분포면적；유불동pH조적식연토양속효갑함량차이불현저；우식연토양유궤질함량재35 g/kg이하시,토양속효갑함량유수유궤질증가이증가적추세；식연토양유궤질함량재35 g/kg이상시,토양속효갑함량유수유궤질증가이감소적추세。
In order to find out the status of available K contents in tobacco-growing soils in Shaoyang, using classical sta-tistics and geostatistical methods, this paper analyzed the distribution of available K contents in different county, pH group, organic matter group and spatial distribution after measuring 1 790 soil samples. The results were as follows:(1) The available K contents in Shaoyang tobacco-growing soil was low on the whole,with a mean of 113.75 mg/kg and vari-ation coefficient of 50.40%, and only 12.01% or so of the soil samples had available K contents for tobacco cultivation.(2)The available K contents of tobacco-growing soils in Xinning county and Shaoyang county were extremely significant more than that of Longhui county.(3) Kriging interpolation map indicated that the spatial distribution of available K was patchiness, and the available K contents of most of the tobacco-growing areas was 100.00~130.00 mg/kg.(4) There was no-significant difference of available K content in tobacco-growing soils among different pH group.(5)The availa-ble K contents increased with the rise of the organic matter content when the organic matter content in soil was less than 35 g/kg, while decreased with the rise of organic matter content of when the organic matter content in soil was more than 35 g/kg.