描述了选择适当试验区域的方法。附件A至E提供了以下表格:A=试验区域和税收特征的说明；B=试验区内生长树木的总体清单报告编号。；C=试验区待检树种清单报告编号。；D=试验区样本树选择的清单报告；E=样本树编号卡片。

The method of selecting the appropriate test areas is described. Annexes A to E provide forms for the following: A = Description of the test area and taxation characteristics; B = Overall inventory report on trees growing in the test area No.; C = Inventory report on trees of species to be examined in test area No.; D = Inventory report on selection of sample trees in test area; E = Card of sample tree No.