title: [Point pattern analysis of Phyllostachys bissetti ramet population in West China Rainy Area].
abstract: In this paper, point pattern analysis was conducted to study the spatial distribution of Phyllostachys bissetii ramet population and the spatial association between different age-class P. bissetii ramet populations in West China Rainy Area. The ramet population had a clumped distribution at the scale 0-0.32 m, a regular distribution at the scale 0.64-4.48 m, and a random distribution at the scale > 4.48 m. Different age-class ramet populations mainly had a random distribution at the scale 0-8.00 m, though a slight difference was observed among different age-classes. The spatial association between age-class I and age-classes II and III at the scale 1.76 - 4.16 m and 0.32-4.16 m approached to or reached to negative, respectively, while the spatial association between age-classes I and IV at the scale 0.32-3.04 m was significantly negative, indicating that the spatial negative association between younger and elder ramet populations increased with enlarged age-class difference. The spatial pattern of P. bissetii ramet population and the spatial association between different age-class ramet populations were depended on spatial scale, ramet age, and environmental factors.
authors.affiliation: School of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China. huixingsong@yahoo.com.cn
authors.forename: Hui-Xing
authors.initials: HX
authors.lastname: Song
authors.forename: Ming-Yan
authors.initials: MY
authors.lastname: Jiang
authors.forename: Qi-Bing
authors.initials: QB
authors.lastname: Chen
mesh_terms: D002681:China; D003247:Conservation of Natural Resources; D017753:Ecosystem; D006109:Poaceae / Q000145:classification / Q000254:growth & development*; D011157:Population Dynamics; D013045:Species Specificity