现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2011年
13期
185-186
,共2页
云南松%年龄结构%种群密度%生物量%分布格局
雲南鬆%年齡結構%種群密度%生物量%分佈格跼
운남송%년령결구%충군밀도%생물량%분포격국
Pinus yunnanensis Franch.%age structure%density%biomass%distribution pattern
种群的数量特征是其自身特性和生境相互作用的结果。通过样方法对昆明市呼马山云南松种群的数量特征进行研究,结果表明：云南松种群年龄结构阴坡为偏稳定型,阳坡和山脊属于增长型;种群密度的生境分布趋势是由阴坡→阳坡→山脊增加;生物量的生境分布趋势是由阴坡→阳坡→山脊减少,阴坡生物量峰值集中在35龄左右,而阳坡和山脊生物量峰值均集中在15龄左右;云南松种群分布格局与其生境没有必然关系,在3种生境（阴坡、阳坡、山脊）下都呈现聚集分布。
種群的數量特徵是其自身特性和生境相互作用的結果。通過樣方法對昆明市呼馬山雲南鬆種群的數量特徵進行研究,結果錶明：雲南鬆種群年齡結構陰坡為偏穩定型,暘坡和山脊屬于增長型;種群密度的生境分佈趨勢是由陰坡→暘坡→山脊增加;生物量的生境分佈趨勢是由陰坡→暘坡→山脊減少,陰坡生物量峰值集中在35齡左右,而暘坡和山脊生物量峰值均集中在15齡左右;雲南鬆種群分佈格跼與其生境沒有必然關繫,在3種生境（陰坡、暘坡、山脊）下都呈現聚集分佈。
충군적수량특정시기자신특성화생경상호작용적결과。통과양방법대곤명시호마산운남송충군적수량특정진행연구,결과표명：운남송충군년령결구음파위편은정형,양파화산척속우증장형;충군밀도적생경분포추세시유음파→양파→산척증가;생물량적생경분포추세시유음파→양파→산척감소,음파생물량봉치집중재35령좌우,이양파화산척생물량봉치균집중재15령좌우;운남송충군분포격국여기생경몰유필연관계,재3충생경（음파、양파、산척）하도정현취집분포。
Population quantity characteristics is a result of their own characteristics and habitat interaction with each other.In this paper,population quantity characteristics of Pinus yunnanensis Franch.in Huma Mountain in Kunming City was studied.The results were as follows： The population age structure located in north slope belonged to stable type.That in south slope and the ridge were both incremental type.The population density increased following north slope→south slope→ridge.The biomass habitat decreased following north slope→south slope→ridge,the biomass peak of north slope concentrated at about 35 ages,but that of south slope and ridge concentrated at about 15 ages.There was no necessary connection between the population distribution pattern and habitats.In the three habitats（north slope,south slope,ridges）,the population distributions present gathered distribution all.
