当前位置: 首页 > 文章 > 大兴安岭次生林蒙古栎种群的空间格局 福建农林大学学报(自然科学版) 2020 (5) 614-620
Position: Home > Articles > 大兴安岭次生林蒙古栎种群的空间格局 Journal of Fujian Agriculture and Forestry University(Natural Science Edition) 2020 (5) 614-620

大兴安岭次生林蒙古栎种群的空间格局

作  者:
韩雪敏;张秋良;边玉明;任建华
单  位:
内蒙古农业大学林学院
关键词:
大兴安岭;蒙古栎次生林;年龄结构;空间格局
摘  要:
以大兴安岭地区蒙古栎次生林为研究对象,结合径级结构、静态生命表和存活曲线,对蒙古栎种群的年龄结构和动态进行研究,并采用点格局分析方法研究了蒙古栎种群的空间分布格局.结果表明:(1)蒙古栎种群的年龄结构呈增长趋势,其中,ⅠⅣ、Ⅱ龄级(小树)个体数占所有龄级总个体数的46%,Ⅲ、Ⅳ龄级(中树)个体数占总个体数的32%,Ⅴ、Ⅵ、Ⅶ龄级(大树)个体数占总个体数的22%;(2)蒙古栎种群的存活曲线接近于DeeveyⅠ型曲线;(3)蒙古栎种群呈现聚集分布,小树与中树、小树与大树以及中树与大树之间均不相关;(4)时间序列分析显示,在未来2、4、6年后蒙古栎种群将呈现一个稳定增长的趋势.蒙古栎在大兴安岭地区的适应能力较强,可在今后较长一段时间内维持稳定.
作  者:
HAN Xuemin;ZHANG Qiuliang;BIAN Yuming;REN Jianhua;College of Forestry, Inner Mongolia Agricultural University;
关键词:
Daxing'anling Mountain;;Quercus mongolica secondary forest;;age structure;;spatial pattern
摘  要:
To provide scientific reference for the sustainable management of Quercus mongolica secondary forest, age structure, static life table and survival curve of Q.mongolica population in Daxing'anling Mountain were studied. The spatial distribution pattern of Q.mongolica population was further studied using point pattern analysis. The results showed that the age structure of Q.mongolica population was in an uprising trend, which was partitioned by 46% of small tree(class Ⅰ and Ⅱ), 32% of medium tree(class Ⅲ and Ⅳ), and 22% of big tree(class Ⅴ, Ⅵ and Ⅶ). The survival curve of Q.mongolica population was close to Deevey I curve. The population of Q.mongolica demonstrated an aggregated distribution, there was no correlation between any pairwise tree class. Time series analysis revealed that the population of Q.mongolica will be in a stable growth trend in next 2, 4 and 6 years. The adaptability of Q.mongolica in Daxing'anling area ranks high, and it will maintain stable for a relative long period in the future.

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