亚热带植物科学
亞熱帶植物科學
아열대식물과학
SUBTROPICAL PLANT SCIENCE
2013年
3期
227-232
,共6页
潘霞%周荣飞%顾莎莎%夏家天%王丹丹%丁炳扬
潘霞%週榮飛%顧莎莎%夏傢天%王丹丹%丁炳颺
반하%주영비%고사사%하가천%왕단단%정병양
多脉青冈%种群结构%分布格局
多脈青岡%種群結構%分佈格跼
다맥청강%충군결구%분포격국
Cyclobalanopsis multinervis%population structure%distribution pattern
本研究应用理论分布模型和5个聚集强度指标,研究百山祖北坡中山常绿阔叶林多脉青冈种群分布格局。结果表明:多脉青冈种群结构呈基部和中部宽、顶部窄的形状,龄级完整,属于稳定型,但存在波动性;从整个种群和不同发育阶段来看,多脉青冈的分布格局主要呈聚集分布,且随年龄增长,聚集度逐渐降低,呈现扩散趋势,到大树期为随机分布。种群自身生物学特性、种群生境以及环境资源等综合因素影响多脉青冈的年龄结构和分布格局。
本研究應用理論分佈模型和5箇聚集彊度指標,研究百山祖北坡中山常綠闊葉林多脈青岡種群分佈格跼。結果錶明:多脈青岡種群結構呈基部和中部寬、頂部窄的形狀,齡級完整,屬于穩定型,但存在波動性;從整箇種群和不同髮育階段來看,多脈青岡的分佈格跼主要呈聚集分佈,且隨年齡增長,聚集度逐漸降低,呈現擴散趨勢,到大樹期為隨機分佈。種群自身生物學特性、種群生境以及環境資源等綜閤因素影響多脈青岡的年齡結構和分佈格跼。
본연구응용이론분포모형화5개취집강도지표,연구백산조북파중산상록활협림다맥청강충군분포격국。결과표명:다맥청강충군결구정기부화중부관、정부착적형상,령급완정,속우은정형,단존재파동성;종정개충군화불동발육계단래간,다맥청강적분포격국주요정취집분포,차수년령증장,취집도축점강저,정현확산추세,도대수기위수궤분포。충군자신생물학특성、충군생경이급배경자원등종합인소영향다맥청강적년령결구화분포격국。
In the study, we applied the theoretical spatial distribution model and 5 aggregation intensity indices to assess the spatial distribution pattern of Cyclobalanopsis multinervis in an evergreen broad-leaved forest in the Baishanzu National Nature Reserve. The results show that the shape of size structure of the C. multinervis population is pyramid with wide base and narrow top, which indicates the population is stable in this forest. The species bearing whole range of size classes shows regeneration fluctuation. Distribution patterns of the whole population and different growth stages of the species are clumped in general. The extent of aggregation reduces along with size class of trees, suggesting a loosing tendency to large trees for random distribution. The synthesized effect of species’ biological characteristics, habitat and environmental resources occupied, influences the population structure and distribution pattern of C. multinervis.