CAJ | 학술논문

以藏东南工布自然保护区内林芝云杉为研究对象，采用样带-样方法对林芝云杉种群及群落进行调查，从种群径级结构、高度结构、冠幅结构、静态生命表、生存分析、时间序列预测等方面对林芝云杉种群结构与数量动态进行分析。结果表明：林芝云杉种群胸径结构、高度结构和冠幅结构均呈典型的“金字塔”型，林芝云杉幼苗较为丰富，天然更新能力强，种群处于稳定发展状态。林芝云杉种群不同胸径级的个体数与胸径级呈对数关系，不同高度级和冠幅级的个体数分别与高度级和冠幅级呈幂函数关系，胸径与高度呈直线关系，而胸径与冠幅及高度与冠幅的相关性不明显。林芝云杉种群在生长过程中各龄级个体存活数量相差较大，随着龄级的增加，死亡率和消失率波动性较大，Ⅵ龄级死亡率和消失率均最低，分别为20％和22.31％；Ⅹ龄级死亡率和消失率最高，分别为62.96％和99.33％，平均死亡率和消失率分别为41.03％和57.55％。林芝云杉种群的存活曲线属于Deevey-Ⅱ型B3亚型。生存函数分析表明，林芝云杉种群具有前期锐减，中期相对平稳，后期生理枯竭而衰退的特点。时间序列预测分析显示，林芝云杉种群在未来Ⅱ，Ⅴ，Ⅷ和Ⅵ龄级时间后均呈现不同幅度的增加，种群稳定性可以维持。研究结果可为林芝云杉资源的有效利用和保护提供科学依据，同时进一步丰富西藏高原国家生态安全屏障评价内容。
이장동남공포자연보호구내림지운삼위연구대상，채용양대-양방법대림지운삼충군급군락진행조사，종충군경급결구、고도결구、관폭결구、정태생명표、생존분석、시간서렬예측등방면대림지운삼충군결구여수량동태진행분석。결과표명：림지운삼충군흉경결구、고도결구화관폭결구균정전형적“금자탑”형，림지운삼유묘교위봉부，천연경신능력강，충군처우은정발전상태。림지운삼충군불동흉경급적개체수여흉경급정대수관계，불동고도급화관폭급적개체수분별여고도급화관폭급정멱함수관계，흉경여고도정직선관계，이흉경여관폭급고도여관폭적상관성불명현。림지운삼충군재생장과정중각령급개체존활수량상차교대，수착령급적증가，사망솔화소실솔파동성교대，Ⅵ령급사망솔화소실솔균최저，분별위20％화22.31％；Ⅹ령급사망솔화소실솔최고，분별위62.96％화99.33％，평균사망솔화소실솔분별위41.03％화57.55％。림지운삼충군적존활곡선속우Deevey-Ⅱ형B3아형。생존함수분석표명，림지운삼충군구유전기예감，중기상대평은，후기생리고갈이쇠퇴적특점。시간서렬예측분석현시，림지운삼충군재미래Ⅱ，Ⅴ，Ⅷ화Ⅵ령급시간후균정현불동폭도적증가，충군은정성가이유지。연구결과가위림지운삼자원적유효이용화보호제공과학의거，동시진일보봉부서장고원국가생태안전병장평개내용。
Picea likiangensis var.linzhiensis is a special species in Tibet,and it is in a easily endangered state in our country.After a comprehensive investigation on P.likiangensis var.linzhiensis population dis-tributed in Gongbu nature reserve of southeast Tibet by transects and quadrats,population structure and quantitative dynamics were analyzed in the paper.The results showed that the individual number of P.likiangensis var.linzhiensis gradually diminished with structure level (the diameter class,height class and crown width class ),and the number in three structures was presented as the typical pyramid shape.The seedlings of P.likiangensis var.linzhiensis were more abundant,the natural regeneration ability was powerful,and the population was at a stable development state.The survival number of the different diameter class of P.likiangensis var.linzhiensis population showed a logarithmic relationship with diameter class,and the number of the different height and crown width class power function relationship with height and crown width class respectively.There was a linear relation between diameter and height,but there was not obviously correlation between diameter and crown width,such was height and crown width.Individual survival quantity of very age class of P.likiangensis var.linzhiensis population was obviously different in growth process.The mortality and killing rates were greatly fluctuant with diameter class,those of age Ⅵwere lowest(20% and 22.3 1% respectively),those of age Ⅹ were highest (62.96% and 99.33% re-spectively),the average mortality and killing rates accounted for 41.03%and 57.55%respectively.The survival curve of P.likiangensis var.linzhiensis population approached to the B3 subtype of Deevey-Ⅱ. Four survival curves for P.likiangensis var.linzhiensis population indicated that the population would have an early reduction,a mid-term stability,and a late recession because of physiological exhaustion.The time sequence model predicted that the amount of P.likiangensis var.linzhiensis population would have a dif-ferent rising tendency in the upcoming Ⅱ,Ⅴ,Ⅷ and Ⅵ age classes,the population had better recovery capability and kept stability maintenance.The research results provided a theoretical basis for management and sustainable utilization of P.likiangensis var.linzhiensis population,and enriched the assessment con-tent of the national ecological security barrier in Tibet plateau.