《山东大学学报(理学版)》 ›› 2020, Vol. 55 ›› Issue (11): 8-17.doi: 10.6040/j.issn.1671-9352.0.2020.199
凌春辉1,2(),张明忠2,吕桂云3,崔浩然1,2,颜攀1,2,韦业1,2,刘胜元1,2,马风云1,2,王华田1,2,刘秀梅1,4,*(),马玲5
Chun-hui LING1,2(),Ming-zhong ZHANG2,Gui-yun LYU3,Hao-ran CUI1,2,Pan YAP1,2,Ye WEI1,2,Sheng-yuan LIU1,2,Feng-yun MA1,2,Hua-tian WANG1,2,Xiu-mei LIU1,4,*(),Ling MA5
摘要:
近自然抚育作业于徂徕山林场、泰山林场和明光寺林场进行,采用目标树抚育作业方式,对不同林分进行间伐处理,时长分别为2、10和3年。结果表明,与对照相比,抚育处理后林分平均胸径、树高和冠幅较对照提高3.13%~12.89%、3.03%~8.91%和2.75%~25.91%;林分生长速度加快,保留木的胸径、树高和冠幅年生长量分别提高21.43%~66.67%、9.21%~26.15%和64.29%~300%;林下灌木层植物种类增多,出现侧柏、臭椿等喜光物种;油松纯林和松栎混交林中草本植物多样性改善,Simpson、Shannon-wiener和Gleason指数分别提高0.95%~1.93%、5.33%~10.43%和4.67%~18.18%,马唐、大油芒、羊胡子草等植物重要值提高;另外,抚育间伐后林下土壤pH提高0.77%~3.78%,土壤容重降低5.48%~12.68%;同时,过氧化氢酶、土壤磷酸酶、土壤蔗糖酶、土壤脲酶活性较对照分别提高6.74%~29.33%、4.79%~4.99%、2.13%~10.34%和1.25%~25.56%。近自然抚育间伐在一定程度上可以促进林分生长量积累、丰富林下植物多样性、改善林下土壤质量。
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