巴山松人工林天然更新评价及其影响因子
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关键词：巴山松（Pinushenryi）人工林；天然更新；林分结构；影响因子
中图分类号：S754.1 文献标识码：A
文章编号：0439-8114（2025）08-0165-07
DOI：10.14088/j.cnki.issn0439-8114.2025.08.025 开放科学（资源服务）标识码（OSID）：口
Evaluation of natural regeneration in the Pinus henryi plantation and its influencing factors
ZHOU Cheng1，CAI Jing-yong1，CHEN Gong-ping²，WANG Shou-fu1 （1.HubeiEcologyPolytechnicCollge，Wuhan4302O，China;2.BashanForestFarmofBadongCounty，Badong44399，HubeiChina）
Abstract：ThenaturalregenerationofPinus henryiplantationsinBashnForestFarmandtheinfluencingfactors wereanalyzed，to provideatheoreticalbasis forpromoting naturalregenerationthrough management practices.Basedonsurveydata，thequalityof natural regeneration seedlings at different heightlevels（ <30 cm，30 ）cm⩽H<50 cm， ⩾ 50 cm）was assessed using the adjusted Class IsedlingdensityndacomprehensiveevaluationsystemasdevelopedtoexploreinfluencingfactorsofnaturalregeneratioThe resultsshowedthatthesumof the importancevaluesofdominantregeneration speciesexceeded 60%inallplots，withPrunus dielsianadominating mostofthem.ObviousdiferencesinsedlingqualitywereobservedacrossvriousplotsbasedonadjustedI-level density.Regenerationdensity，seedlingeight，andtheproportionoflargesedlingshdasignificantimpactonregeneratiosce. Thehighestcomprehensiveevaluatiocoeficients wereobservedinplots3and2，whilethelowestwereinplots5and6.Crelation analysis indicated that the regeneration index was positively correlated with diameter at breast height （ DBH ）and tree height，and negatively correlated with stand density.Stepwise regression analysis further indicated that DBH and stand openness facilitated natural regeneration，whilehighstanddensitysuppresedit.Naturalregenerationofpionerbroadleaf speciessuchasPrunusdielsiana contributedtothediversityandstabilityofthePinushenryi-broadleaf mixedforest.Thecomprehensiveindexevaluationproved applicabletoassessngnaturalegeneationuccssDBH，standensityandopesidexweredentifedsthomnantfacto afecting naturalregeneration.Appropriateregulationof stand structurecould efectively enhance the naturalregenerationof P .henryi plantations.
Key Words：Pinus henryi plantation；natural regeneration； stand structure； influencing factors收稿日期：2025-03-11基金项目：中央财政林业科技推广示范资金项目（鄂[2025]TG02-2号）；中德财政合作林业重大研究项目（zdczhz2021ky09;zdhz2023ky11）作者简介：周成（1987-），男，江西景德镇人，讲师，，主要从事林业生态经济的研究工作，（电话）15549440441（电子信箱）357565821@qq.com；通信作者，王守富（1979-），男，荆门人，教授，主要从事园林景观设计的研究工作，（电话）15827248520（电子信箱）18635285@qq.com。（剩余10085字）
