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以小兴安岭阔叶红松林林隙为研究对象,采用地统计学方法对林隙0~20 cm(表层)和20~40 cm(下层)土壤水分的微环境异质性进行了系统分析。结果表明:①阔叶红松林林隙各层土壤水分生长季内变化规律不同,表层与下层土壤水分差别显著,各层次土壤水分变异程度均属中等变异;②阔叶红松林林隙各层土壤水分在生长季内均表现出不同程度的空间异质性,空间自相关部分的空间异质性在土壤水分总空间异质性中占主要部分;③阔叶红松林林隙内不同层次土壤水分空间分布均以中低等级斑块为主,相对较高等级的斑块仅分布在表层土壤中。
Taking the gap of Korean pine forest in Xiaoxing’an Mountains as the research object, the microenvironmental heterogeneity of soil moisture in 0 ~ 20 cm (surface layer) and 20 ~ 40 cm (lower layer) of gap was systematically analyzed by geostatistics. The results showed that: (1) The variation law of soil moisture in different layers of karst stands was different in the broad-leaved Korean pine forest, the difference of soil moisture was significant between the surface layer and the lower layer, The spatial heterogeneity of the spatial autocorrelation of the spatial autocorrelation accounted for the major part of the total spatial heterogeneity of soil moisture; ③ The soil moisture The spatial distribution is dominated by low and medium plaques, and the relatively higher plaques are only distributed in the surface soil.