CAJ | 학술논문

应用趋势面分析，采用2因子2次回归正交旋转组合的原理与方法，建立茶秆竹林生物量与立竹密度(N)和胸径(D)关系的回归模型，分析单因子产量反应，建立边际产量模式，同时进行生产弹性分析和探讨2因素的交互作用.结果表明，所建立的回归模型能很好地反映生物量、密度和胸径三者之间的关系.D和N单独作用时，林分的最佳密度为18 435 株/hm2，平均胸径为5.73 cm.生产弹性系数EP<0,说明现存竹林密度N=19 815 株/hm2偏大.立竹密度与胸径的交互作用非常明显，N和D分别介于15 750～20 250 株 /hm2和4.5～6.5 cm时，茶秆竹的生物量可获得最佳值.
응용추세면분석，채용2인자2차회귀정교선전조합적원리여방법，건립다간죽림생물량여립 죽밀도(N)화흉경(D)관계적회귀모형，분석단인자산량반응， 건립변제산량모식，동시진행생산탄성분석화탐토2인소적교호작용.결과표명，소건립적 회귀모형능흔호지반영생물량、밀도화흉경삼자지간적관계.D화N단독작용시，림분적최가 밀도위18 435 주/hm2，평균흉경위5.73 cm.생산탄성계수EP<0,설명현존죽림밀도N=19 815 주/hm2편대.립죽밀도여흉경적교호작용비상명현，N화D분별개우15 750～20 250 주 /hm2화4.5～6.5 cm시，다간죽적생물량가획득최가치.
Using the methods of trend surface analysis and orthogonal rotation of two factors and quadratic regression,the mathmatics model of the biom ass,density and diameter of artifical Pseudosasa amabilis M cCl. forest was built,as well as analyzed the biomass of one factor and built t he mathematics model of marginal yield.The result showed that the model could r eflect the relationship between biomass,density and diameter very well.The opti mal density is 18 435 culm/hm2 and 5.73 cm in diameter. The existing density (19 815 culm/hm2) is larger base on the EP(productive elasticity)<0. The interaction of the density and diameter is obvious and the biomass wi ll be the highest when the density and diameter are 15 750～20 250 culm/hm2 and 4.5～6.5 cm respectively.