CAJ | 학술논문

利用目测法和VertexⅣ测高仪对黑龙江省凉水林场的部分树木高度进行测量,通过实测数据和目测数据的比较分析,结果表明：目测数据普遍低于实测数据,而且随着树高和冠幅的增加,估测误差也呈增大趋势,估测误差的波动范围很大,平均估测误差为3.4 m,目测数据和实测数据的拟合效果一般,平均估测精度为82.6%。几个主要树种的估测误差平均值在3～4 m左右,误差大于5 m的数据主要集中在红松和水曲柳中。
이용목측법화VertexⅣ측고의대흑룡강성량수림장적부분수목고도진행측량,통과실측수거화목측수거적비교분석,결과표명：목측수거보편저우실측수거,이차수착수고화관폭적증가,고측오차야정증대추세,고측오차적파동범위흔대,평균고측오차위3.4 m,목측수거화실측수거적의합효과일반,평균고측정도위82.6%。궤개주요수충적고측오차평균치재3～4 m좌우,오차대우5 m적수거주요집중재홍송화수곡류중。
Eye measurement and Vertex IV Altimeter were adopted in tree height measurement of partial forest in Liangshui loresl farm, Heilongjiang province. And the measured data was compared with its true value. Results show that the tree height data got from eye measurement are generally lower than the true value. With the increase of tree height and crown width, the estimate error shows an ascendant trend. And the estimated error fluctuation range is large, with average value of 3.4m. According to the correlation analy- sis, it indicates that eye measurement just fits for the true value, and the average estimate precision is 82.6%. The average error of some main species is nearly 3 to 4m, while the error that is greater than 5m mainly distributes in Koreanpine and ash tree.