栾城农田土壤含水量与气象要素的相关性分析

Correlation Analysis between Agricultural Soil Moisture and Meteorological Elements in Luancheng

应用传统统计学的原理和方法,对2002—2008年栾城站土壤含水量的长系列实测数据进行统计计算,得到了地表以下不同深度土壤含水量与气象要素之间的相关系数R,并对其进行分析和讨论。结果表明气温及日照时数与不同深度土壤含水量相关系数在年内的变化较大,除在个别月份由于土壤表层水分被冻结以及人工灌溉的影响而呈现出正相关关系外,在全年内总体呈现出负相关关系,且随着深度的增加而相关关系越不显著;不同季节下气温及日照时数与不同深度土壤含水量相关系数变化情况基本一致,在夏季总体呈现负相关关系,其余季节由于人工活动等不同因素影响而呈现出不同的变化趋势。

Appling of traditional statistical principles and methods, we conducted a statistical calculation for a long series of soil moisture measured data from year 2002 to 2008 in Luancheng, obtained correlation coefficient R between soil moisture and meteorological elements at different depths below the surface. and quantitative analysis. The results show that the temperature and sunshine hours with different soil moisture strongly correlated with changes in depth during the year, except in the few months because of the frozen soil moisture and the influence of the artificial irrigation and present a positive correlation, but throughout the year overall showing negative relationship, and with increasing depth correlation between the less significant; different seasonal temperature and sunshine with different soil moisture depth correlation coefficient changes basically the same, in the summer showing an overall negative correlation rest of the season due to various factors like human activity showing different trends.