ICS 65.020 CCS B 66 湖 DB43 南 省 地 方 标 准 DB43/T 19 91—2021 油茶低产林改造技术规程 Technical regulations on reconstruction of oil tea Camellia low-yield forest in Hunan province 2021-02-20发布 湖南省市场监督管理局 2021-05-20实施 发 布 DB43/T 1991—2021 目 次 前言························································································································ Ⅲ 1 范围 ····················································································································· 1 2 规范性引用文件 ······································································································ 1 3 术语和定义 ············································································································ 1 4 低产林界定 ············································································································ 2 5 更新改造 ··············································································································· 2 5.1 带状更新 ········································································································· 2 5.2 块状更新 ········································································································· 4 6 抚育改造 ··············································································································· 4 6.1 适用对象 ········································································································· 4 6.2 林地清理 ········································································································· 5 6.3 密度调整 ········································································································· 5 6.4 劣株更换 ········································································································· 5 6.5 树体改良 ········································································································· 5 6.6 土壤改良 ········································································································· 5 6.7 合理施肥 ········································································································· 6 6.8 花果调控 ········································································································· 6 6.9 有害生物防控 ··································································································· 6 7 品种改造 ··············································································································· 7 7.1 适用对象 ········································································································· 7 7.2 基本方法 ········································································································· 7 7.3 高接换种 ········································································································· 7 7.4 植苗换种 ········································································································· 7 8 生态化改造技术 ······································································································ 8 8.1 生态环境保护 ··································································································· 8 8.2 水土保持 ········································································································· 8 8.3 生物多样性保护 ································································································ 8 8.4 优良种质基因保护 ····························································································· 8 8.5 改造剩余物还山利用 ·························································································· 8 9 机械化改造技术 ······································································································ 8 附录 A（资料性） 《全国油茶主推品种目录》 （湖南部分） ·················································· 9 I DB43/T 1991—2021 II DB43/T 1991—2021 前 言 本文件按照 GB/T 1.1—2020 给出的规则起草。 本文件的某些内容可能涉及专利，本文件的发布机构不承担识别这些专利的责任。 本文件由湖南省林业局提出。 本文件由湖南省林业标准化技术委员会归口。 本文件起草单位：中南林业科技大学、常德长岭农业科技发展有限公司、株洲神农茶油发展有限公 司。 本文件主要起草人：李建安、谭晓风、李泽、雷菊初、张若明、袁德义、袁军、谷战英、吴玲利、 许煜东、马英、冷佳明、夏翩翩、廖皎。 III DB43/T 1991—2021 IV DB43/T 1991—2021 油茶低产林改造技术规程 1 范围 本文件规定了油茶低产林改造技术的术语和定义、低产林界定、更新改造、抚育改造、品种改造、 生态化改造等技术要求。 本文件适用于湖南省油茶低产林改造。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件， 仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本（包括所有的修改单）适用于本 文件。 GB/T 8321 农药合理使用准则 GB/T 15776 造林技术规程 GB∕T 27620 植物有害生物根除指南 GB∕T 37803 种植用植物有害生物综合管理措施 LY/T 1328 油茶栽培技术规程 LY/T 1935 油茶低产林改造技术 LY/T 2678 油茶栽培