论文部分内容阅读
一、前言石灰土是一类土层较浅薄、土壤有效水分范围狭窄、PH值中性至微碱性、但矿质养分含量丰富、自然肥力较高的非地带性土壤,浙江省约有面积300000hm~2,浙西北是其主要分布区域。由于气候、地形地貌、母岩、土壤、植被等因素的影响,石灰土地域的森林植物区系在种类组成、分布等方面与邻近的地带性土壤地域相比常常具有一定的相异特性。近年来,虽有一些学者对浙江省石灰土地域的植物及植被类型进行过研究,但迄今尚未有人对其森林植物区系进行过系统
I. Preface Lime soil is a kind of non-zonal soil with shallow soil layers, narrow effective soil moisture range, neutral to slightly alkaline pH, rich mineral nutrients and high natural fertility. Zhejiang Province has an area of 300000hm ~ 2, northwest Zhejiang is its main distribution area. Due to the influence of climate, landform, mother rock, soil and vegetation, the forest flora in lime soil area often has some dissimilarities with the adjacent zonal soil areas in terms of species composition and distribution. In recent years, although some scholars have studied the types of plants and vegetation in limestone areas of Zhejiang Province, no systematic review has been done on their flora