黔北金佛山方竹林立地类型划分及竹林质量响应  

Site Type Classification and Quality Response of Chimonobambusa uitilis Forest in Northern Guizhou Province

作　　者：张喜 张庭嘉 姜霞 杨光能 侯贻菊 Zhang Xi;Zhang Tingjia;Jiang Xia;Yang Guangneng;Hou Yiju(Guizhou Academy of Forestry,Guiyang 550005,China;Guizhou Institute of Bamboo Industry for New Era,Chishui 564700,Guizhou,China;Research Center of Sympodial Bamboo Engineering Technology of National Forestry and Grassland Administration,Kunming 650224,China;Guizhou Chishui Bamboo Forest Ecosystem National Observation and Research Station,Chishui 564700,Guizhou,China;Key Laboratory on Biodiversity Conservation in Southwestern Karst Areas of National Forestry and Grassland Administration,Guiyang 550005,China)

机构地区：[1]贵州省林业科学研究院,贵阳550005 [2]贵州省新时代竹产业研究院,贵州赤水564700 [3]国家林业和草原局丛生竹工程技术研究中心,昆明650224 [4]贵州赤水竹林生态系统国家定位观测研究站,贵州赤水564700 [5]国家林业和草原局西南喀斯特山地生物多样性保护重点实验室,贵阳550005

出　　处：《世界竹藤通讯》2024年第1期19-29,共11页World Bamboo and Rattan

基　　金：贵州省特色林业产业科研项目(特林研2020-02);贵州省林业局课题(黔林科合J字[2022]-03号);原国家林业部课题(1995-林[中]字-21号)。

摘　　要：亚优层竹林是生态学关注的热点,立地类型及划分是亚优层竹林科学化经营的基础,也是该领域研究的空白和难点。在黔北大娄山金佛山方竹(以下简称方竹)中心分布区调查了92个样地,其中石灰土方竹林样地数量占42.39%。采用样地立地因子剥离法建立方竹林立地分类系统及控制因子等级,并分析立地类型区及立地类型间方竹林及其乔木和灌木质量变化规律。结果表明:1)在方竹林立地分类系统中,立地区(亚区)承接国家及省级森林立地分类系统,控制因子在立地类型区为大中型地貌及海拔高度、立地类型亚区为岩组及土壤类型、立地类型组为坡向、坡位和坡度、立地类型为土壤AB层厚度、立地变型为土壤A层厚度及石砾量。2)在立地类型区之间,不同土壤类型方竹林平均胸径、高度及密度值差异显著、竹秆生物量差异不显著,乔木平均胸径及高度值差异显著、密度值差异不显著,灌木相应值差异显著,乔木Marglef指数、Shannon-Winner指数及Pielou指数值差异显著、Simpsom指数值差异不显著。在立地类型区不同等级之间,不同土壤类型方竹林相应指标值差异不显著、乔木及灌木部分指标值差异显著,方竹、乔木和灌木相应指标值随立地类型区等级变化的趋势性各异。3)在立地类型不同等级之间,不同土壤类型方竹、乔木以及灌木质量指标差异不显著,相应质量指标值随立地类型等级变化的趋势性各异。研究结果为方竹林高效经营提供了科学依据。Bamboo forest in sub-superior layer is a hot research topic in ecology,and site types and their classification are not only the basis for science-based management of suboptimal bamboo forests,but also a gap and difficulty in the research.This paper investigates 92 Chimonobambusa uitilis(hereinafter referred to as CU)plots in Dalou mountain,located in northern Guizhou province,among which the plots with limestone soil account for 42.39%.The site classification system and control factor levels of CU forest are established using the site factor stripping method,and the quality variation patterns of CU forest and its trees and shrubs in site type regions and between site types are analyzed.The results show that:1)In the CU forest site classification system,the site regions(sub-regions)are the basic units of the national and provincial forest site classification system,while the control factors are large and medium geomorphology and altitude in site type regions,rock group and soil type in site type sub-regions,slope direction,position and gradient in site type groups,thickness of soil AB layer in site types,and thickness of soil A layer and gravel amount in site sub-types;2)Between site type regions,CU forests with different soil types are significantly different in their average DBH,height and density,but not significantly different in stem biomass.The average DBH and height of tall trees are significantly different,but the density is not significantly different.The corresponding index values of shrub are significantly different.Marglef index,Shannon-Winner index and Pielou index of tall trees are significantly different,but Simpsom index of tall trees is not significantly different.Among different levels of site type regions,the corresponding index values of CU forests with different soil types are not significantly different,and some index values of tall trees and shrubs are significantly different.The corresponding index values of CU forest,tall trees and shrubs vary with the changes in the level of site type reg

关 键 词：金佛山方竹 立地分类 立地因子 林分质量 黔北 

分 类 号：S795[农业科学—林木遗传育种]