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利用皖南山区330株马尾松样木调查数据,选用6种一元材积回归方程,拟合各模型参数,建立了马尾松材积与地径回归模型,并进行了适用性检验。结果表明,皖南山区马尾松材积与地径最佳关系模型为Y=49.4672(1-exp(-0.00706x))2.9309,相关指数(R)为0.96,总相对误差(RS)为-0.18%,符合森林资源调查精度要求。在此基础上,编制了皖南山区马尾松地径一元材积表,为该区域林政资源管理提供重要理论依据,具有十分重要的实践意义。
Based on the survey data of 330 Pinus massoniana samples in mountainous area of Southern Anhui Province, six kinds of regressive volume regression equations were selected to fit the parameters of each model. The regression model of mass and ground diameter of masson pine was established and the applicability test was carried out. The results showed that the best correlation model was plotted as follows: Y = 49.4672 (1-exp (-0.00706x)) 2.9309, correlation index (R) 0.96 and total relative error (RS) -0.18% In line with the accuracy of forest resources survey requirements. Based on this, a single-volume table of Pinus massoniana borealis in the mountain area of Southern Anhui Province is compiled, which provides an important theoretical basis for the management of forest resources in this area. It has very important practical significance.