Table 3: Comparison of fixed-area and angle-count estimates of stand increment per 5 years, for the 72 000 data points simulated in each measurement year.

Method Increment estimate, m³/ha/5 years Mean Std. dev. Fixed-area plots 67.88 28.14 Angle counts, difference method 69.01 56.97 Angle counts, starting Value method 68.23 21.89 Angle counts, end Value method 68.24 21.13