科尔沁沙地南缘不同人工造林模式稳定性评价  

Evaluation on the Stability of Different Afforestation Models in the Southern Margin of Horqin Sandy Land

作　　者：史佳露 王成 萨如拉[1] 海龙[2] 刘磊 李凤滋 刘庆艳 SHI Jialu;WANG Cheng;SA Rula;HAI Long;LIU Lei;LI Fengzi;LIU Qingyan(College of Forestry,Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia;Inner Mongolia Academy of Forestry Sciences,Hohhot 010010,Inner Mongolia;Sanyijing Forest Farm,Aohan Banner,Chifeng 024300,Inner Mongolia)

机构地区：[1]内蒙古农业大学林学院,内蒙古呼和浩特010019 [2]内蒙古自治区林业科学研究院,内蒙古呼和浩特010010 [3]赤峰市敖汉旗三义井林场,内蒙古赤峰024300

出　　处：《温带林业研究》2025年第2期17-23,共7页Journal of Temperate Forestry Research

基　　金：内蒙古自治区科技计划项目“科尔沁沙地杨树人工林生态系统提质增效关键技术研究”(2021GG0370)。

摘　　要：【目的】探讨科尔沁沙地南缘不同类型森林群落的更新潜力、多样性程度以及稳定性水平,阐明三者间的关系。【方法】本研究以杨树纯林、杨-樟混交林、杨-樟-榆混交林和樟子松纯林4种不同造林模式的林分为对象,利用Margalef指数(M)、Simpson指数(D)、Shannon-Wiener指数(H)和Pielou指数(J)等4个物种多样性指数及改进的M.Godron稳定性测定方法分别对该区物种多样性和群落稳定性进行测度。【结果】杨树纯林、杨-樟混交林、杨-樟-榆混交林和樟子松纯林的稳定性数值分别为2.6092,0.8676,0.9403,1.1746,杨树纯林和樟子松纯林处于稳定状态,杨-樟混交林和杨-樟-榆混交林处于不稳定状态。两种混交林处于剧烈的正向演替中,群落内所有植物发生强烈种内资源竞争,并且样地处于人畜经常活动范围,受到较多的人类活动影响。【结论】不同造林模式的混交林物种丰富度较高,但稳定性未必强,林地管理应注重对样地的保护。【Objective】To explore the regeneration potential,diversity degree and stability level of different forest communities in the southern margin of Horqin Sandy Land,and to clarify the relationship among the three.【Method】This paper took four mixed forests with different afforestation modes,namely,poplar pure forest,poplar-cinnamomum mixed forest,poplar-cinnamomum-elm mixed forest and pine camphor pure forest as the targets.Margalef index(M),Simpson index(D),Shannon-Wiener index(H)and Pielou index(J)were used to measure the species diversity and community stability of the region,and the improved M.Godron stability measurement method was used.【Result】The results showed that the stability values of poplar pure forest,poplar-camphor mixed forest,poplar-camphor-elm mixed forest and pine camphor pure forest were 2.6092,0.8676,0.9403,1.1746,respectively.The poplar pure forest and pine camphor pure forest were in a stable state,and the poplar-camphor mixed forest and poplar-camphor-elm mixed forest were in an unstable state.The two kinds of mixed forest are in a vigorous forward succession,all the plants in the community have strong competition for intraspecific resources,and the sample plot is in the range of human and animal activities,and is subject to more human actions.【Conclusion】The results show that the species richness of mixed forest with different afforestation models is high,but not necessarily strong in stability.Forest land management should pay attention to the protection of sample land.

关 键 词：混交林 物种多样性 群落稳定性 改进M.Godron法 林分结构 

分 类 号：S757[农业科学—森林经理学]