罗甸县油茶低效林改造技术措施及效益分析  

Technical Measures and Benefit Analysis of Low-efficiency Forest Renovation of Oil Tea in Luodian County

作　　者：吴永祝 Wu Yongzhu(Forestry Bureau of Luodian County,Luodian 550100,Guizhou,China)

机构地区：[1]罗甸县林业局,贵州罗甸550100

出　　处：《林业科技情报》2024年第3期44-46,共3页Forestry Science and Technology Information

摘　　要：分析罗甸县油茶低效林改造技术措施,总结社会效益和经济效益,为油茶低效林改造提供理论支撑。本次研究选择罗甸县油茶低效林为样地,根据低效林改造技术差异分组,共设置3组,T1组土壤管理+水肥管理、T2组土壤管理+水肥管理+林分结构优化、T3组土壤管理+水肥管理+林分结构优化+良种改造,分析不同改造技术措施内容,总结整体效益。研究结果得知T3组的平均单果质量和平均单株产量均高于其他两组(P<0.05),其次是T2组,整体呈T3>T2>T1的趋势。T3组的树高、冠幅、地径均高于T1组和T2组(P<0.05),T2组的各项指标优于T1组(P<0.05)。T3组的果高、果径、果实体积均高于T1组和T2组(P<0.05),果实指数和T2组无明显差异(P>0.05)。T2组的果实各项指标优于T1组(P<0.05)。T3组的鲜出籽率、干籽含油率、鲜果含油率明显高于其他两组(P<0.05)。因此得出在油茶低效林改造中采用土壤管理+水肥管理+林分结构优化+良种改造效果最好明显,改造后能提升油茶低效林的收益,综合性评价分析证明T3组处理效果最好,能带动该区域经济发展。This paper analyzed the technical measures for the reconstruction of low-efficiency forest of oil tea in Luodian County,summarized the social and economic benefits,and provided theoretical support for the reconstruction of low-efficiency forest of oil tea.In this study,low-efficiency forest of oil tea in Luodian County was selected as the sample plot,and three groups were set up according to the differences of low-efficiency forest transformation techniques,namely,T1 group for soil management+water and fertilizer management,T2 group for soil management+water and fertilizer management+stand structure optimization,and T3 group Soil management+water and fertilizer management+stand structure optimization+improved seed transformation,analyze the contents of different transformation technical measures,and summarize the overall benefits.The results showed that the average fruit weight and average plant yield of T3 group were higher than those of the other two groups(P<0.05),followed by T2 group,and the overall trend was T3>T2>T1.The tree height,crown width and ground diameter in T3 group were higher than those in T1 and T2 groups(P<0.05),and the indexes in T2 group were better than those in T1 group(P<0.05).The fruit height,fruit diameter and fruit volume in T3 group were higher than those in T1 and T2 groups(P<0.05),but there was no significant difference in fruit index between T3 group and T2 group(P>0.05).The fruit indexes of T2 group were better than those of T1 group(P<0.05).The fresh seed rate,dry seed oil content and fresh fruit oil content in T3 group were significantly higher than those in the other two groups(P<0.05).Therefore,it is concluded that soil management+water and fertilizer management+stand structure optimization+improved seed transformation has the best and obvious effect in the transformation of low-efficiency forest of oil tea in Luodian County.After the transformation,the income of low-efficiency forest can be improved.Comprehensive evaluation and analysis prove that T3 group treatment has the be

关 键 词：油茶 低效林 改造技术 改造措施 经济效益 

分 类 号：S794.4[农业科学—林木遗传育种]