Reflection on the Classification and Protection of Urban Ancient and Valuable Trees

doi:10.13466/j.cnki.lyzygl.2022.03.005

Abstract

Abstract:

With the increasing frequency of urban construction activities and the increasing shortage of urban space,the living space,growth quality and value inheritance of urban ancient and valuable trees are facing severe challenges,and the difficulty and pressure of protection are increasing day by day.Based on the status quo of the classification and management of ancient and valuable trees,this paper sorted out the incompatibility of "more prominent contradictions in space use and higher demand for refined management" faced by the protection of urban ancient and valuable trees.This paper proposed two protection considerations,namely "orderly protection based on classification characteristics,and partition management and control based on spatial scenarios",in order to achieve better development of ancient and valuable tree resources protection and urban construction.

Key words: city, ancient and valuable trees, classified protection, reflection

CLC Number:

S788

ZHENG Kun, LUO Tingwen, XU Zhibo. Reflection on the Classification and Protection of Urban Ancient and Valuable Trees[J]. FOREST RESOURCES WANAGEMENT, 2022, (3): 31-35.

Figures/Tables 4

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References 11

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序号	类型	释义
1	保护等级高的古树名木	一级古树和名木
2	数量相对稀少的古树名木	区域内现存数量相对稀少的古树名木
3	生长势较弱的古树名木	生长势衰弱或者濒危的古树名木
4	人类干扰大的古树名木	生长环境受人类生产、生活干扰大的古树名木,主要是位于更新单元、城中村、城市道路、城市公园等人类活动频繁场所的古树名木
5	移植的古树名木	因国家、省重点建设项目以及公益性市政建设项目迁移(已迁移或将要迁移)的古树名木
6	有典故的古树名木	具有典型历史文化内涵的古树名木
7	古树群	典型的群状分布的古树名木
8	古树后续资源	树龄为80~100a的树木
9	其他需关注的古树名木	权属不清或具有历史遗留问题的古树名木
10	城市古树名木	除上述类型外的城市古树名木

序号	类型	释义
1	核心区	直接影响古树名木生长的区域,保障古树名木生长的最低空间范围。如树干、树池区域,主要树冠分布区域以及主要地下根系分布区域
2	管控区	根据古树名木保护管理规定划定的古树名木保护范围,是古树名木的绝对保护区域。如树冠垂直投影外5m以及树干中心区划出一定范围的缓冲区等
3	预警区	在古树名木绝对保护范围外,因树木生长特点,需提醒生产、生活行为注意的范围。如为避免损伤根系,超出树冠垂直投影外5m保护范围的根系分布区域等
4	协调区	古树名木非独立存在,考虑树木与周边景观、周边环境的协调融合,将有古树名木分布的周边区域作为协调区,如古树公园等

序号	级别	类型
1	特别保护	保护等级高的古树名木
2	重点保护	数量相对稀少的古树名木
3		生长势较弱的古树名木
4		人类干扰大的古树名木
5		移植的古树名木
6		有典故的古树名木
7		古树群
8	关注保护	古树后续资源
9	关注保护	其他需关注的古树名木
10	一般保护	城市古树名木

情景	冲突情形
情景	空间冲突	管理冲突
情景1	建设项目选址与古树名木保护范围重叠		建设项目选址可避让
情景2			建设项目选址无法避让,但可有效保护古树名木
情景3			建设项目选址无法避让,且无法有效保护古树名木
情景4	建设项目选址与古树名木保护范围交叉		建设项目选址可避让
情景5			建设项目选址无法避让,但可有效保护古树名木
情景6			建设项目选址无法避让,且无法有效保护古树名木
情景7	建设项目选址与古树名木预警范围重叠(交叉)		建设活动影响古树名木生长周边环境
情景8	建设项目选址与古树名木协调区范围重叠(交叉)		建设活动影响古树名木生长周边环境

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