间伐强度对黄山松人工林林下植被的影响  

Effect of thinning intensity on understory vegetation of Pinus taiwanensis plantation

作　　者：张建设 邱林 王晓云 柳勇 史晓海 周传涛 董卉卉 张英姿 ZHANG Jianshe;QIU Lin;WANG Xiaoyun;LIU Yong;SHI Xiaohai;ZHOU Chuantao;DONG Huihui;ZHANG Yingzi(The Forest Science Research Institute of Xinyang,Xinyang 464031,China;Henan Jigongshan Forest Ecosystem Research Station,Xinyang 464031,China)

机构地区：[1]信阳市林业科学研究所,河南信阳464031 [2]河南鸡公山森林生态系统国家定位观测研究站,河南信阳464031

出　　处：《甘肃农业大学学报》2025年第1期224-230,共7页Journal of Gansu Agricultural University

基　　金：国家林业局造林绿化管理司委托项目(169201531);国家自然科学基金项目(31400538);林业科技创新攻坚行动项目(XL2023002);河南省科技兴林项目(YLK202423)。

摘　　要：【目的】研究间伐强度对黄山松人工林林下植被的影响。【方法】设置强度间伐(HT)、中度间伐(MT)、弱度间伐(LT)、对照(CK)4种固定试验样地,采用多重比较、Pearson相关分析、物种多样性指数法开展研究。【结果】间伐对灌木、草本层物种丰富度指数R、Shannon-Wiener多样性指数H、Simpson优势度指数D均有显著影响,对Pielous均匀度指数J无显著影响,多样性指数随间伐强度的增大总体呈增加趋势;灌木、草本层生物量随间伐强度增大而增加,枯落物层生物量随间伐强度增大而减少,间伐对林下各植被层生物量均有显著影响,但对林下植被总生物量无显著影响;灌木、草本层植被物种多样性与灌木、草本层生物量有着显著正相关性,与枯落物层生物量有着显著负相关性。【结论】强度间伐更有利于研究区黄山松人工林林下植被生长。【Objective】Study on the effect of thinning intensity on understory vegetation of Pinus tai⁃wanensis plantation.【Method】Using randomized block method,the serious thinning(HT),moderate thin⁃ning(MT),weak thinning(LT)and control(CK)four kinds of thinning intensity were set.The study was conducted using multiple comparisons,Pearson correlation analysis,and species diversity index methods.【Result】The thinning intensities have obviously effects to the shrub layer and the herb layer in species rich⁃ness index R,Shannon-Wiener diversity index H,Simpson dominance index D,but have no obvious effect in Pielous Evenness index J.The diversity index is trend to increase with the overall increasing of the thin⁃ning intensities;The Shrub layer and the herb layer is increased with the increase of the thinning intensities,and reduce with the increase of the thinning intensities of the litter layer biomass.The thinning intensities have a obvious effect to the biomass of each layer of understory vegetation,but won’t have obvious effect to the total biomass of understory vegetation;The species diversity of the shrub layer and herb layer have sig⁃nificant positive correlation with the biomass of the shrub layer and herb layer,but it have a significant nega⁃tive correlation with litter layer biomass.【Conclusion】After comprehensive analysis,we found that the in⁃tensity of thinning is more conductive to the growth of understory vegetation of P.taiwanensis plantation.plantation in the study area.

关 键 词：黄山松 间伐强度 林下植被多样性 生物量 

分 类 号：S753[农业科学—森林经理学]