CAJ | 학술논문

研究了弱度（15％）、中度（25％）、强度（35％）、极强度（50％）和CK （0％）5种间伐强度对德阳市旌阳区33年生柏木（ Cupressus funebris）低效人工林灌草生长及其生物多样性的影响。结果表明：间伐1 a后，不同间伐强度下的林下植物种类、密度和生物量均有所增加；林下灌木层和草本层物种的丰富度指数、Shannon－Wiener指数和 Simpson优势度指数均随着间伐强度的增大而增大，其中，强度和极强度间伐增加最显著（ P＜0．05）。从短期的影响效果看，强度和极强度间伐有利于柏木低效人工林灌草多样性的提高。
연구료약도（15％）、중도（25％）、강도（35％）、겁강도（50％）화CK （0％）5충간벌강도대덕양시정양구33년생백목（ Cupressus funebris）저효인공림관초생장급기생물다양성적영향。결과표명：간벌1 a후，불동간벌강도하적림하식물충류、밀도화생물량균유소증가；림하관목층화초본층물충적봉부도지수、Shannon－Wiener지수화 Simpson우세도지수균수착간벌강도적증대이증대，기중，강도화겁강도간벌증가최현저（ P＜0．05）。종단기적영향효과간，강도화겁강도간벌유리우백목저효인공림관초다양성적제고。
By 1-a in situ simulated experiment , we examined the short-term effect of 15%( T1) , 25%( T2), 35%( T3) , 50%( T4) and 0 ( CK) thinning on the understory ( shrub and herb ) diversities of 33-a low-efficiency Cupressus funebris planta-tion, located in Jingyang District of Deyang City , Sichuan Province .One year later , the species richness , density, biomass of understory increased slightly in all treatments .The species richness , Shannon-Wiener index , Simpson dominance index of shrub-and herb-layer were increased with thinning intensity , and the significant positive effects on diversity existed in T 3 and T4.Hence, the intense thinning could facilitate to increase the diversity of shrubs and herbs within low -efficiency C. funebris plantation .