Abstract:Following conclusions were obtained from comparison of various methods used in spruce population spatial distribution pattern on sandy sites. T-value is used to be employed to test statistically for the significance of the difference (i. e. Variance/Mean Method). Its mathematical inference is rigorous and calculation process is simple. In contrast, the results of aggregative indexes might produce deviation sometimes and need test by several indexes. Furthermore, their results are lack of efficient test on statistics When indexes are close to critical value, their results were difficult to determine. Therefore, the Variance/Mean Method is better than the method with aggregative index.