CAJ | 학술논문

福建省马尾松人工林二元立木材积表作为行业标准已经颁布使用了30多年，迫切需要检验和修订。根据2514株马尾松立木材积数据，采用回归方程和交叉建模检验方法，对福建省现行的二元立木材积方程作适用性检验和修订。结果表明：福建省现行的马尾松人工林二元立木材积方程的估计值标准差为0．114，总相对误差和平均相对误差绝对值均大于10％，平均系统误差大于7％，已经不再适用，需要重新编方程；新建立的二元立木材积方程中的参数很稳定，变动系数均小于2％，估计值标准差为0．06、总相对误差和平均系统误差小于2％、平均相对误差绝对值小于10％；从误差指标来看，方程是适用的。
복건성마미송인공림이원립목재적표작위행업표준이경반포사용료30다년，박절수요검험화수정。근거2514주마미송립목재적수거，채용회귀방정화교차건모검험방법，대복건성현행적이원립목재적방정작괄용성검험화수정。결과표명：복건성현행적마미송인공림이원립목재적방정적고계치표준차위0．114，총상대오차화평균상대오차절대치균대우10％，평균계통오차대우7％，이경불재괄용，수요중신편방정；신건립적이원립목재적방정중적삼수흔은정，변동계수균소우2％，고계치표준차위0．06、총상대오차화평균계통오차소우2％、평균상대오차절대치소우10％；종오차지표래간，방정시괄용적。
Two-entry volume table of Pinus massoniana plantation in Fujian Province , which had been used as industry standard for more than 30 years, was urgently needed to be verified and revised .Based on data about the diameter , height and volume of 2 514 trees collected from different cities in Fujian Province , the applicability of two-entry volume equation was verified and revised by the method of regression equation and cross modeling-test.The results showed that the current two-entry volume equation of P.massoniana plantation in Fujian Province was not suitable for using in practice and needed to be re -edited for the goodness evaluation of the equation was not high with 0.114 of standard error of estimate ( SSE) , more than 10%of both total relative error ( TRE) and mean absolute of percentage error ( MAPE), and with more than 7% of mean system error ( MSE).By contrast, the new two-entry volume equation was applicable judged by goodness evaluation for the coefficient of variation of parameters was less than 2%, SEE was 0.06, both TRE and MSE were less than 2%, and MAPE was less than 10%.