title: [Spatial patterns of and specific correlations between dominant tree species in a karst evergreen and deciduous broadleaved mixed forest in Mulun Karst National Nature Reserve].
abstract: In order to understand the biological characteristics and specific correlations of dominant tree species in a karst characteristic evergreen and deciduous broad-leaved mixed forest in Mulun National Nature Reserve of Guangxi, a point pattern analysis was made on the spatial distribution patterns and inter- and intraspecific correlations of four dominant species in a one-hectare plot. Among the four species, Boniodendron minius dominated in tree sublayer I, while Ligustrum japonicum, Sinosideroxylon wightianum, and Rapanea kwangsiensis dominated in tree sublayers II and III. All the four species had a clumped distribution at scale <10 m, a transition from clumped to random distribution at scale 10-25 m, and a random or regular distribution at scale >25 m. The critical scale from clumped to random distribution varied with species. No significant correlations were observed between the B. minius in sublayer I and the dominant species in sublayer II. The correlations of B. minius with the dominant species in sublayers II and III showed greater fluctuation, with significant positive correlation for L. japonicum at scale <50 m, no significant correlation for S. wightianum, and no significant correlation for R. kwangsiensis at scale <20 m but significant negative correlation at scale 20-50 m.
authors.affiliation: Guangxi Institute of Botany, Chinese Academy of Sciences, Guilin 541006, Guangxi, China. hwh2222@163.com
authors.forename: Wen-heng
authors.initials: WH
authors.lastname: Han
authors.forename: Wu-sheng
authors.initials: WS
authors.lastname: Xiang
authors.forename: Duo
authors.initials: D
authors.lastname: Ye
authors.forename: Shi-hong
authors.initials: SH
authors.lastname: Lü
authors.forename: Tao
authors.initials: T
authors.lastname: Ding
authors.forename: Xian-kun
authors.initials: XK
authors.lastname: Li
mesh_terms: D002681:China; D003247:Conservation of Natural Resources; D017753:Ecosystem; D031659:Ligustrum / Q000254:growth & development; D011157:Population Dynamics; D029623:Primulaceae / Q000254:growth & development; D014197:Trees / Q000254:growth & development*