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研究提出了生长模拟保护带应由边缘效应带和误差阻尼带两部分构成。边缘效应带的宽度等于林分平均优势木影响圈半径的２倍，阻尼带的宽度可根据模拟分期数和模拟精度估计。样地边缘误差呈衰减趋势由外向内逐级传播，各环带中树木竞争指数的系统误差，可根据其与样地边缘的距离近似估计。利用生长模型一般形式推导出了竞争指数相对误差与生长模拟相对误差的转换函数，证明由边缘效应造成的不同位置树木生长模拟系统误差是可估的。该研究为单水生长模型生长模拟保护带宽度的确定提供了理论依据和实用的估计方法。
The research suggests that the growth simulation protection zone should be composed of two parts, the edge effect zone and the error damping zone. The width of the edge effect zone is equal to 2 times the radius of the circle of influence of the average dominant wood of the stand, and the width of the damping zone can be estimated according to the simulation staging number and the simulation accuracy. The error of the edge of the plot showed a declining trend from outside to inside, and the systematic error of the tree competition index in each ring could be approximated by the distance from the edge of the plot. The conversion function of the relative error between competition index and growth simulation is deduced by using the general form of growth model. It is proved that the error of tree growth simulation system at different positions caused by edge effect can be estimated. This study provides a theoretical basis and a practical estimation method for the determination of the width of simulated growth zone for single-water growth model.