将区域腐蚀试验数据看作是连续、光滑变化 的土壤腐蚀性-位置函数具体数值，用三次样条函数处理塔里木地区库尔勒-库车公路沿线土 壤腐蚀试验数据，得到插值公式并计算最高腐蚀性土壤的位置和腐蚀分区边界等.同样思路 也适用二维位置分布研究，但复杂得多.本文还介绍三角网格线性插值和绘制平面等值线图 等一般方法.
The soil corrosion data collected along Kuerle-Kuche Highway at Tarim area were regarded as individual values of a soil corrosivity- position f unction that was continuous and smooth.The cubic spline functions were applied t o fit the data.The interpolation functions were obtained and the positions with maximum soil corrosivity or the boundaries for seperating areas with different c orrosivities were calculated.The analogous methods were also suitable for analys is the two-dimensional position distribution,but much complex.The general method s about triangular net interpolation and plot of plane diagrams with soil corros ivity contour lines were also introduced in the paper.
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