天津科技大学学报
天津科技大學學報
천진과기대학학보
JOURNAL OF TIANJIN UNIVERSITY OF SCIENCE & TECHNOLOGY
2012年
6期
74-78
,共5页
表层土壤%化学元素%污染%核回归%仿真
錶層土壤%化學元素%汙染%覈迴歸%倣真
표층토양%화학원소%오염%핵회귀%방진
surface soil%chemical elements%pollution%kernel regression%simulation
以某城市城区主要功能区表层土壤0~10,cm 中 As、Cd、Cr、Cu、Hg、Ni、Pb、Zn 8种化学元素在采样点处的含量和背景值为基础,利用插值方法,给出主要观测区域内 8种主要化学元素的空间分布;并通过单因素方差分析及聚类分析探究污染原因,建立了城市表层土壤化学元素污染传播的核回归模型.利用该模型对化学元素的污染趋势进行模拟仿真,形象化展示了化学污染传播的动态过程.
以某城市城區主要功能區錶層土壤0~10,cm 中 As、Cd、Cr、Cu、Hg、Ni、Pb、Zn 8種化學元素在採樣點處的含量和揹景值為基礎,利用插值方法,給齣主要觀測區域內 8種主要化學元素的空間分佈;併通過單因素方差分析及聚類分析探究汙染原因,建立瞭城市錶層土壤化學元素汙染傳播的覈迴歸模型.利用該模型對化學元素的汙染趨勢進行模擬倣真,形象化展示瞭化學汙染傳播的動態過程.
이모성시성구주요공능구표층토양0~10,cm 중 As、Cd、Cr、Cu、Hg、Ni、Pb、Zn 8충화학원소재채양점처적함량화배경치위기출,이용삽치방법,급출주요관측구역내 8충주요화학원소적공간분포;병통과단인소방차분석급취류분석탐구오염원인,건립료성시표층토양화학원소오염전파적핵회귀모형.이용해모형대화학원소적오염추세진행모의방진,형상화전시료화학오염전파적동태과정.
Based on the soil values and the concentration of chemical elements of As,Cd,Cr,Cu,Hg,Hi,Pb and Zn in about 0~10,cm surface soil from some sample points of a certain city,spatial distribution of the 8,major chemical elements in the observed region were discovered with the interpolation method. Causes of contamination were analyzed with both single and cluster factor variance analyses,and a kernel regression model of the spread of chemical elements pollution in urban surface soil was established. By means of this model,chemical elements pollution trends were simulated and dynamic process of the spread of chemical elements pollution was demonstrated.