系统分析与模拟方法在汞污染盆栽试验中的应用

对1983年冬栽、1984年春栽冬小麦盆栽汞污染试验的部份结果,进行系统分析与模拟,充分估算土壤—作物系统与环境间污染汞的交换量,计算出实际参与系统内部运动的污染汞量,输入计算机同时计算配合十个函数方程,通过标准差、相关系数与显著性测验值的比较,迅速、准确地选出污染汞在系统内运动的数学模型,提高了模拟精度。用关联度分析方法可克服回归分析中的某些困难,较容易地判断出污染汞,籽粒产量,土壤性质与受污染部位的汞量之间的主次关系。

STUDIES ON THE METHOD OF SYSTEM ANALYSIS AND SIMULATIONOF POLLUTION MERCURY IN THE POT-GROWN WHEAT

An experiment on mercury pollution was carried out with pot-grown wheat. The Corrected data accordine to the system analysis were put into a computer and fitted with the following ten equations: Y=a+bx;Y=1/(a+bx) (Y=a/(b+x));Y=1/a+be~(-x);Y=a+blnx;Y=x/a+bx;Y=ax/b+x;Y=ax~b; Y=axe~(bx);Y=ae~(bx)(Y=ab~x);and Y=ae~(-b/x)(Y=ab~(-1/x)). Then the best mathematical moded for the minimal S.D(standard devia- tion)and the maximal C.C(correlation coefficient)and the maximal S.L (significant level)could be easily select...