摘要
为定量化土壤变量空间变异复杂程度,以半干旱区草地土壤为研究对象,应用分形与地质统计学理论,分析2个试验区(600 m×800 m、280 m×200 m)内的土壤含水量、电导率EC、有机质的空间变异性及其分形维数。结果显示,土壤变量的均值、标准差、变异系数,Co/(Co+C)值只能在一定程度上反映总体的变异。
Based on fractal and geostatistical theory, Research is tim variability of soil quantificationally. Water content, EC and done on soil structure in semi-arid grassland in order to describe spa organic matter of soil in two proving grounds are calculated and ana lyzed. The results show that the mean value, standard deviation, GvCv/(Cv+C) of data only can show the spatial variability of soil partially.
出处
《中国农村水利水电》
北大核心
2008年第11期19-21,25,共4页
China Rural Water and Hydropower
基金
中国水科院科研专项基金(MKSX(1)-07-05)
科技部农业科技成果转化项目(2006GB23320414)。
关键词
半干旱区
草地
土壤
空间变异
分形维数
semi-arid area
grassland
soil
spatial variability
fractal dimension