分别统计水杉和杨树样地的优势木的树高平均值，将其分别绘制在地位指数曲线

Statistics were dominant tree fir and poplar plots of the average tree height, which were drawn on the status index of curves, the test, fir and poplar respectively 19 dominant tree fall tree height index compiled by position the curve, the accuracy of 95%,

The high average of the superior trees of the water fir and the poplar-like land was calculated, and it was drawn on the status index curve cluster, respectively, and the water fir and poplar trees were tested, with 19 superior trees falling high in the status index curve, with an accuracy of 95%.

The average height of dominant trees in the plots of Metasequoia and poplar were calculated and plotted on the position index curve cluster respectively. It was found that 19 dominant trees of Metasequoia and poplar fell in the position index curve, with an accuracy of 95%,<br>