【摘要】 采用地统计学方法,进行长江口北岸土地利用样本点半变异函数拟合和结构性分析,研究表明:当样本点间距小于61 km时,土地利用样点间的距离越小,空间相关性越大;当样本点间距大于61 km时,区域化变量的空间相关性不存在。长江口北岸土地利用样本点半变异函数拟合的结构系数为0.7左右,表明长江口北岸土地利用样本间的变异更多是由随机因素引起的,土地利用样本间的空间依赖性较弱,但有增强的趋势。更多还原

【Abstract】 Using statistical methods,analysis land use sample semivariogram fitting and structure of the North Branch of Yangtze River estuary,reseowch shows that the spatial correlation is greater,as the land-use distance between points is smaller in the range of 61 kilometers.When sample interval is greater than 61 kilometers,the space-relation of regionalization variables will not exist.The structure factor of land-use sample semivariogram fitting is around 0.7,which indicated that variation among the land use samples are more caused by random factors,land-use spatial dependence between samples is weak,but the space dependence is trend to enhance.更多还原