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根据河南省油松飞播林生长实际情况,收集了1314块标准地材料,编制了河南省油松飞播林林分密度控制图。并将未参加编表的28块固定标准地材料对等树高线和等直径线进行了检验,结果表明编制的林分密度控制图适用于河南省油松飞播林。
According to the actual situation of aerial seeding stands of Pinus tabulaeformis in Henan Province, 1314 standard materials were collected and the density control charts of aerial seeding stands of Pinus tabulaeformis were compiled. The test results of 28 stands of standard fixed materials that were not included in the table were tested. The results showed that the developed stand density maps were suitable for aerial seeding of Pinus tabulaeformis in Henan Province.