CAJ | 학술논문

利用生存分析理论,编制了子午岭马栏林区油松种群的静态生命表,分析了油松的径级结构及其密度变化规律;绘制了存活曲线,累积死亡率曲线,死亡密度曲线,危险率曲线及损失度曲线.结果表明：油松的平均密度随径级的增加而减少,反映了密度与径级之间存在着一种负相关性;油松种群存活曲线的变化趋势更接近DeeveyⅡ型,死亡高峰出现在前期和后期阶段.
이용생존분석이론,편제료자오령마란림구유송충군적정태생명표,분석료유송적경급결구급기밀도변화규률;회제료존활곡선,루적사망솔곡선,사망밀도곡선,위험솔곡선급손실도곡선.결과표명：유송적평균밀도수경급적증가이감소,반영료밀도여경급지간존재착일충부상관성;유송충군존활곡선적변화추세경접근DeeveyⅡ형,사망고봉출현재전기화후기계단.
Based on the data about Pinus tabulaeformis population and the theory of survival analysis,the regulations of size-class and changing density of P.tabulaeformis were obtained,and the static life table,the curves of survival,cumulative mortality rate,mortality density,hazard rate and killing valuable populations were drawn.The results showed that the average density of P.tabulaeformis dropped with the increase of size-class,which reflected the negative association between density and size-class,the survival curves tended to be the type DeeveyⅡ,and the peak of mortality appeared in the stage of beginning and end.