当前位置: 首页 > 文章 > 典型矿集区土壤中重金属元素的多维分形空间分布特征研究——以铜陵矿集区土壤中Cd为例 土壤通报 2009 (1) 167-170
Position: Home > Articles > Multi-Fractal Distribution of Soil Cd in Tongling Chinese Journal of Soil Science 2009 (1) 167-170

典型矿集区土壤中重金属元素的多维分形空间分布特征研究——以铜陵矿集区土壤中Cd为例

作  者:
袁峰;白晓宇;张颖慧;周涛发;张鑫;陈兴仁;陈永宁;陈富荣;贾十军
单  位:
安徽省地质调查院;合肥工业大学
关键词:
土壤;Cd元素;多维分形;克里格法;铜陵
摘  要:
空间变异研究中最为常用的克里格插值法能够较为精确的估值,但由于其低通滤波性,往往会对较高数值的异常点产生低估。而多维分形方法正是强化局部插值结果,刻画局部奇异性的有效工具。应用多维分形地统计学方法于铜陵地区土壤中Cd元素的空间分布研究,结果表明,该地区土壤中Cd元素有较强的空间自相似性,多维分形方法合理地强化了局部区域的估值结果,可以较好的表达土壤元素空间分布的局部奇异性。
译  名:
Multi-Fractal Distribution of Soil Cd in Tongling
作  者:
YUAN Feng1, BAI Xiao- yu1, ZHANG Ying- hui1, ZHOU Tao- fa1,ZHANG Xin1,CHEN Xing- ren2,CHEN Yong- ning2,CHEN Fu- rong2,JIA Shi- jun2 (1.School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; 2.Anhui Institute of Geological Survey, Hefei 230009, China)
关键词:
soil; Cd; multi- fractal; Kriging; Tongling
摘  要:
Kriging interpolation method, which is widely used in the study of spatial variance, can make a precisely estimation. However, when characterizing singularity, Kriging is unable to estimate the high- value regions accurately due to its low- pass filter. And Multi- fractal method is a useful tool for strengthening local interpolation result and characterizing local singularity. The author makes the first to study the spatial distribution of soil Cd in Tongling by using multi- fractal geostatistical method. The results show that, with logical increasing of the estimation value in local area, multi- fractal interpolation can better reflect the singularity of spatial distribution of soil Cd in this area which has strong spatial self- similarity. The method can be widely applied to the study of spatial distribution of element in soil, especially the heavy metal in mining soil.

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