Spatial Variability of Top Soil Moisture and Soil Bulk Density in Three Different Stand Age of Salix psammophila in Inter-Dune Lowland

YAO Yue-feng; CAI Ti-jiu

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Spatial Variability of Top Soil Moisture and Soil Bulk Density in Three Different Stand Age of Salix psammophila in Inter-Dune Lowland

更新时间：2024-11-07

- Spatial Variability of Top Soil Moisture and Soil Bulk Density in Three Different Stand Age of Salix psammophila in Inter-Dune Lowland
- Vol. 21, Issue 5, Pages: 114-117(2007)
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  CLC： S152.71
- Published：2007
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YAO Yue-feng, CAI Ti-jiu. Spatial Variability of Top Soil Moisture and Soil Bulk Density in Three Different Stand Age of Salix psammophila in Inter-Dune Lowland[J]. 2007, 21(5): 114-117.
DOI：

YAO Yue-feng, CAI Ti-jiu. Spatial Variability of Top Soil Moisture and Soil Bulk Density in Three Different Stand Age of Salix psammophila in Inter-Dune Lowland[J]. 2007, 21(5): 114-117. DOI：

摘要

以毛乌素沙地丘间低地不同年龄(2~4年)沙柳为研究对象

采用地统计学方法对各年龄沙柳表层(0~20cm)土壤水分与容重空间变异进行研究。结果表明:随着年龄的增长

表层土壤水分含量表现出增大的趋势

且各年龄沙柳表层土壤水分含量间表现出一定的差异性(P<0.05);表层土壤容重差异不显著。空间变异分析显示

随着年龄的增长

沙柳表层土壤水分与容重具有高度的空间变异性

由空间自相关部分引起的空间变异向更强烈空间相关性转变

空间分布格局趋于复杂化;但不同年龄沙柳表层土壤水分含量的空间变异与容重的空间变异相关性不显著(P>0.05)。

Abstract

Spatial variability is one of the most important characters in soil.We use the principle and methods of traditional statistics and geostatisitcs to study the spatial variability of top soil(0~20 cm) moisture and soil bulk density in three different stand age of Salix psammophila in inter-dune lowland.The result showed that there showed increased tendency of top soil moisture with the growth of Salix psammophila

it also had a significant effect(p<0.05) on top soil moisture in three different stand age of Salix psammophila

but the soil bulk density of top soil didn't showed the significant effect.Semivariogram analysis demonstrated that the spatial variability became higher in top soil moisture and soil bulk density

higher the spatial autocorrelation which caused spatial heterogeneity mainly and more complicated and scattered according to the growth of Salix psammophila.But there is not significant different(p>0.05) between the vary function of top soil moisture and soil bulk density in different stand age of Salix psammophlia.

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