江西植被类型及其历史比较  

Analysis and historical comparison of vegetation types in Jiangxi Province

作　　者：刘仁林[1] 刘剑锋[1] 谢宜飞[1] LIU RenLin;LIU JianFeng;XIE YiFei(College of Life Sciences,Gannan Normal University,Nanling Herbarium,Ganzhou 341000,China)

机构地区：[1]赣南师范大学生命科学学院,南岭植物标本馆,赣州341000

出　　处：《中国科学：生命科学》2021年第3期314-320,共7页Scientia Sinica(Vitae)

基　　金：中国科学院战略性先导科技专项(A类)(批准号:2005DKA21400)资助。

摘　　要：本文根据江西植被研究的相关文献,梳理了以下问题:(ⅰ)建议将两类混交优势树种重要值之差小于或等于这两类优势树种重要值平均值50%的植被类型确定为混交林.(ⅱ)常绿阔叶林、针叶林、落叶阔叶林、针叶阔叶混交林群系名称应采用单一优势树种原则处理并命名,如"南方红豆杉针阔混交林".(ⅲ)仅当竹林以及针叶林的郁闭度0.1以下,才能将其归类为灌丛而不是疏林.(ⅳ)根据以上植被名称处理原则,结合本团队近10年的调查补充,江西植被类型可划分为4个植被型组、13个植被型、22个植被亚型、249个群系.这些群系中分布于陆地的群系218个,占群系总数的87.6%,具有明显的生态系统主导地位.(ⅴ)按照以上植被划分方法,江西植被类型中1986年以前和1986年以后植被型组和植被型的数量没有发生变化,但群系数量变化较大, 1986年之后新增了126个植被群系.(ⅵ)"滨湖沙丘灌草丛植被亚型"为新记录植被亚型,"单叶蔓荆、假俭草、瞿麦、茵陈蒿灌草丛群系和蓼子草群系"为新记录群系.In view of the problems in published literature of vegetation research in Jiangxi, this paper puts forward corresponding treatment methods to solve these problems chiefly as follows.(i) It is suggested that a type of mixed forest is determined by the difference value between the importance values of two types of dominant trees mixed and this difference value is only less than or equal to the average50% of the importance values of these two dominant trees.(ii) The name of a formation of vegetation is determined only by one name of a species tree, which is called "one name of a species tree principle", for example "Taxus wallichiana var. mairei coniferous broadleaved mixed forest";and similarly, the name of a formation of evergreen broad-leaved forest, coniferous forest, deciduous broadleaved forest coniferous broad-leaved forest mixed is also determined by "one name of a species tree principle".(iii) It is considered to be valid that formations of bamboo forest or coniferous woodland are classified as scrub and grass only by the crown density value of bamboo forest and coniferous woodlands being less than 0.1.(iv) Based on "one name of a species tree principle" and supplemental survey of the last 10 years, classification system grades of vegetation types in Jiangxi are obtained including numbers of various grades, for example, types of vegetation comprise 4 vegetation type groups, 13 vegetation types, 22 vegetation subtypes, 249 formations of vegetation that include 218 terrestrial formations. Obviously, the terrestrial formations make up 87.6% of all formations, and there is no doubt that terrestrial 12 formations play an important role in the land forest ecology system.(v)Comparison of the early types of vegetation(before 1986) with the later types(after 1986) shows that there was no difference in the numbers of vegetation type groups and vegetation types, but the number of formations changed significantly, for example, 126 formations appeared after 1986.(vi) A new record of vegetation subtype named "Lakeside-sa

关 键 词：植被类型 历史比较 存在的问题 江西 

分 类 号：Q948[生物学—植物学]