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免炼山对桉树人工林生长的影响初探 被引量:6

Preliminary Study on Effects of Non-burning Treatment on Growth of Eucalypt Plantation
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摘要 为了研究一种能代替炼山的采伐剩余物管理方式,以尾巨桉(Eucalyptus urophylla×E.grandis)人工林为研究对象,采用“风炮机”和“二锄法”等高工效免炼山综合管理技术,探究免炼山处理方式对桉树人工林生长的影响。结果表明,免炼山处理4年后,林分的蓄积量、胸径和树高分别比炼山处理高出20.66%、1.88%和7.97%;免炼山区的树高生长速度显著高于炼山区,平均胸径在第3年显著高于炼山区,第3~4年胸径增长速度放缓,可能是未施肥造成的。该免炼山造林技术操作简便,在减少肥料投入量的情况下,免炼山区域桉树人工林生长更好。 In order to study a management method of harvest residues to replace burning,taking Eucalyptus urophylla×E.grandis plantation as research object,high-efficiency non-burning comprehensive management technologies such as"guns"and"second-hoe method"were applied,and effects of non-burning treatment on growths of eucalypt plantation were studied.Results showed that after 4 years of non-burning treatment,stand accumulation,DBH and tree height were 20.66%,1.88%and 7.97%higher than those of burning treatment,respectively.Growth rate of tree height in non-burning treatment was significantly higher than that in burning treatment.Average DBH in nonburning treatment was significantly higher than that in burning treatment in the third year.Growth speed of DBH slowed down from the third to the fourth year,which might be caused by no fertilization.The non-burning technology was easy to operate.In the condition of reducing fertilizer input,growth of eucalypt plantation in non-burning treatment was better.
作者 王亚琼 王政烨 温建科 邓永胜 黄康庭 陈晓龙 吴秦展 罗盼 唐健 陆星任 王修海 陈利军 吴立潮 Wang Yaqiong;Wang Zhengye;Wen Jianke;Deng Yongsheng;Huang Kangting;Chen Xiaolong;Wu Qinzhan;Luo Pan;Tang Jian;Lu Xingren;Wang Xiuhai;Chen Lijun;Wu Lichao(Forestry College of Central South University of Forestry and Technology,Laboratory of Soil and Water Conservation and Desertification Control,Changsha,Hunan 410004,China;Guangdong Qingyuan Zhonglian Agriculture and Forestry Co.Ltd.,Qingyuan,Guangdong 511500,China;Guangxi State-owned Daguishan Forest Farm,Hezhou,Guangxi 542899,China;Guangxi Lvtuo Forestry Technology Co.Ltd.,Nanning,Guangxi 530006,China;Guangxi Research and Development Center of New Forest Fertilizer,Nanning,Guangxi 530022,China;Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China;Guangxi Diyuanzhiben Fertilizer Co.Ltd.,Nanning,Guangxi 530006,China)
出处 《广西林业科学》 2021年第3期287-290,共4页 Guangxi Forestry Science
基金 “十三五”国家重点研发计划项目(2016YFD0600505)。
关键词 采伐剩余物管理 高工效经营 炼山 免炼山 桉树人工林 harvest residue management high-efficiency management burning non-burning eucalypt plantation
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