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运用地统计学和GIS技术相结合的方法,采用地统计分析模块中的Kriging插值法研究了山区茶园土壤钾素的空间分布格局。结果表明:蒙顶山茶园土壤全钾和速效钾含量均具有中等的空间相关性,其C0/(C0+C)值分别为43.3%和27.2%,二者的变异方向略有不同,但均表现出在坡度方向变异明显,在横坡方向变异较弱的特性。Kriging插值结果表明速效钾含量在24.48~55.00 mg/kg之间的斑块面积较大,全钾在12.09~14.04 g/kg之间所占的面积较大,二者均呈片状分布,在垂直方向没有明显的规律可循,并都有东北区含量高于西南区的趋势。
Using the method of geostatistics and GIS technology, Kriging interpolation method of geostatistical analysis module was used to study the spatial distribution pattern of soil potassium in mountainous tea plantation. The results showed that there was a moderate spatial correlation between total potassium and available potassium in the soil of Mengding Mountain tea plantation, with C0 / (C0 + C) values of 43.3% and 27.2% It shows the obvious variation in the slope direction and the weak variation in the transverse slope direction. The results of Kriging interpolation showed that the area of available potassium was larger between 24.48 and 55.00 mg / kg, and the area occupied by total potassium between 12.09 and 14.04 g / kg was larger. Both of them showed patchy distribution. There is no obvious regularity in the vertical direction, and there is a tendency that the content in the northeast is higher than that in the southwest.