[1]曹华,张川英,龚笑飞,等.亚热带次生常绿阔叶林目标树经营效果分析[J].浙江林业科技,2021,41(04):15-23.[doi:10.3969/j.issn.1001-3776.2021.04.003]
　CAO Hua,ZHANG Chuan-ying,GONG Xiao-fei,et al.Effect of Target Tree Management in Subtropical Secondary Evergreen Broad-leaved Forest[J].Journal of Zhejiang Forestry Science and Technology,2021,41(04):15-23.[doi:10.3969/j.issn.1001-3776.2021.04.003]
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亚热带次生常绿阔叶林目标树经营效果分析()
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《浙江林业科技》[ISSN:1001-3776/CN:33-1112/S]

卷:
41
期数:
2021年04期
页码:
15-23
栏目:
出版日期:
2021-08-01

文章信息/Info

Title:
Effect of Target Tree Management in Subtropical Secondary Evergreen Broad-leaved Forest
文章编号:
1001-3776（2021）04-0015-009
作者:
曹华 1; 张川英1; 龚笑飞1; 龚征宇3; 李大标4; 焦洁洁2
（1. 遂昌县林业生态发展中心，浙江遂昌 323300，2. 浙江省林业科学研究院，浙江杭州 310000，3. 浙江省遂昌县垵口林业站， 浙江 遂昌 323300；4. 遂昌县自然资源和规划局，浙江遂昌 323000）
Author(s):
CAO Hua1; ZHANG Chuan-ying1;  GONG Xiao-fei1; GONG Zheng-yu3; LI Da-biao4; JIAO Jie-jie2
（1. Suichang Forestry Ecological Development Center of Zhejiang, Suichang 323300, China; 2. Zhejiang Forestry Academy, Hangzhou 310023, China; 3. Suichang Ankou Forestry Station of Zhejiang, Shuichang 323000, China; 4. Suichang Natural Resources and Planning Bureau of Zhejiang, Suichang 323000, China）
关键词:
次生常绿阔叶林; 目标树经营; 群落结构; 林下植被; 土壤理化性质
Keywords:
secondary evergreen broad-leaved forest;  target tree management;  community structure;  undergrowth vegetation;  soil property
分类号:
S750
DOI:
10.3969/j.issn.1001-3776.2021.04.003
文献标志码:
A
摘要:
为了探讨亚热带萌生性次生常绿阔叶林目标树经营后的初期效果，选取分布在浙江省遂昌县3 个不同发育 阶段的次生常绿阔叶林样地（样地1，林分年龄20 ~ 30 年；样地2，林分年龄＞30 ~ 40 年；样地3，林分年龄50 ~ 60 年）为研究对象，分别实施封禁（对照）、传统经营和目标树经营，通过2017 年（试验前）和2020 年（试 验3 年）的调查，比较分析了目标树经营后早期的植物群落结构、物种多样性和土壤理化性质的动态变化。结果 表明，目标树经营提高了林木的混交程度，降低了林木聚集度；目标树经营林分乔木层林木胸径断面积和的年均 生长率最高，传统经营的次之，对照的最低，并且目标树经营林分中林木的年均生长率显著高于样地1 和样地2 的（P＜0.05）；传统经营林分的下木层幼树密度、下木层和草本层的多样性指数均显著低于目标树经营和对照林 分的（P＜0.05）；3 个样地的各样方中的土壤容重、总孔隙度、pH 值、有机碳含量、全N 含量、全P 含量、全 K 含量、速效K 含量均没有明显差异，只有速效P 含量在目标树经营3 年后有明显下降（P＜0.05）。以上结果 说明，目标树经营有效地改善了林分的空间结构，提高了目标树的生长量，有助于加快林木的分化和分层，同时 减少了对林下植被的干扰，土壤理化性质未有明显改变，缓解了作业初期对水土流失的影响，在林分发育初期（20 ~ 40 年），目标树经营是针对亚热带次生常绿阔叶林较为有效的森林经营措施。
Abstract:
In October 2017, subtropical secondary evergreen broad-leaved forest in Suichang county, Zhejiang province was sampled with age group of 20-30-year, 30-40-year and 50-60-year. 3 quadrats with area of 50 m × 50 m were established for traditional and target tree management treatment in each sample area, with no management as control. In October 2020, investigations were carried out on species composition, stand structure, growth, undergrowth vegetation and soil physio-chemical properties, and comparison was made on the result in 2020 and that in 2017. The results showed that target tree management could improve mingling and reduce contagion of the forest. The basal area of DBH and annual growth rate in quadrat with target management was the highest, that with traditional management the second, that in the control stand the lowest. The density of young trees,the diversity index of understory and herb layer in quadrats with traditional management was significantly lower than in those with target management and control. There were no significant differences in soil bulk density, total porosity, pH, organic carbon content, total N, total P, total K and available K content among different sample areas, except available P, which reduced in quadrat with target tree management.

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备注/Memo

备注/Memo:
收稿日期：2021-02-16；修回日期：2021-06-25
基金项目：遂昌县科技计划项目—遂昌县次生阔叶林珍贵化改造
作者简介：曹华，工程师，从事调查规划和林业技术推广工作；E-mail:656264508@qq.com。通信作者：焦洁洁，助理研究员，从事森林生 态和森林经营工作；E-mail:705241632@qq.com。
更新日期/Last Update: 2021-08-01