广西石灰岩季节性雨林分类的研究

STUDY OF LIMESTONE SEASONAL RAIN FOREST CLASSIFICATION IN GUANGXI

广西北热带地区石灰岩山地占据相当大的面积，特别是桂西南一带，那里形成一种独特的石灰岩季节性雨林，与相邻的砂页岩或花岗岩山地季节性雨林镶嵌分布。本文主要论述它的分类系统和地理分布规律。

A large area of limestone mountain is occupied in southwestern Guangxi, in which there is a special limestone seasonal rain forest differing from seasonal rain forest in acid soil mountain formed by sandstone, shale or granite. The paper is mainly engaged in research of its classification and geographical distributional law. A preliminary classification system is described as follows: 1 Limestone seasonal rain forest dominated by Tiliaceae and other families 1.1 Formation dominated by Burretiodendron hsienmu and Cephalomappa sinensis 1.2 Formation dominated by Burretiodendron hsienmu and Garcinia paucinervis 1.3 Formation dominated by Burretiodendron hsienmu, Canthium dicoccum and Boniodendron minor 1.4 Formation dominated by Burretiodendron hsienmu and Cinnamomum saxatile 1.5 Formation dominated by Burretiodendron hsienmu and Miliusa glochidioides 1.6 Formation dominated by Burretiodendron hsienmu and Cyclobalanopsis glauca 1.7 Formation dominated by single species-Burretiodendron hsienmu 2 Limestone seasonal rain forest dominated by Euphorbiaceae 2.1 Cephalomappa sinensis Formation 2.2 Deutzianthus tonkinensis Formation 2.3 Bischofia javanica Formation 2.4 Cleistanthus saichikii Formation 3 Limestone seasonal rain forest dominated by Leguminosae 3.1 Lysidice rhodostegia Formation 3.2 Saraca chinensis Formation 4 Limestone seasonal rain forest dominated by Ulmaceae and other families 4.1 Formation dominated by Gironniera subaequalis and Aphanamixis grandifolia 5 Limestone seasonal rain forest dominated by Myristicaceae 5.1 Horsfieldia hainanensis Formation 6 Limestone seasonal rain forest dominated by Dipterocarpaceae 6.1 Shorea chinensis Formation