山东禹城地区土壤入渗特牲的空间变异研究

Water Saving Irrigation(2008)

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Abstract
在中科院禹城综合试验站102 m×52 m面积内选择样点,采用经典统计学和地质统计学方法,对土壤稳渗率和入渗经验指数的空间变异性进行研究.结果表明,土壤稳渗率和入渗经验指数均服从对数正态分布,表现出空间变异结构,但不是完全的随机变异,在一定范围内存在着空间相关现象.利用克立格最优内插估值法,绘制了土壤稳渗率和入渗经验指数的等值线图,可准确、直观地了解该地区农田土壤垂向透水性的空间分布规律.
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Key words
spatial variability,infiltration experiential index,steady water infiltration rate,infiltration property
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