| 松材线虫病疫木卫生伐对马尾松纯林林分结构的影响 |
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| 引用本文： | 张华锋,陈思宇,刘刚,王懿祥.松材线虫病疫木卫生伐对马尾松纯林林分结构的影响[J].浙江农林大学学报,2020,37(4):745-751. |
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| 作者姓名： | 张华锋 陈思宇 刘刚 王懿祥 |
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| 作者单位： | 1.杭州市临安区农林技术推广中心，浙江 杭州 3113002.浙江农林大学 省部共建亚热带森林培育国家重点实验室，浙江 杭州 3113003.浙江农林大学 浙江省森林生态系统碳循环与固碳减排重点实验室，浙江 杭州 3113004.浙江农林大学 环境与资源学院，浙江 杭州 3113005.浙江省林业资金管理中心，浙江 杭州 310020 |
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| 基金项目： | 国家自然科学基金资助项目(31770681)；浙江省自然科学基金资助项目(LY17C160006) |
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| 摘 要： | 目的 探讨松材线虫Bursaphelenchus xylophlius病疫木采伐对马尾松人工纯林林分结构的影响，对松材线虫病入侵后的马尾松林分的经营管理有理论和实践价值。 方法 在浙江省杭州市临安区，分别选择松材线虫病危害及周边未受害的马尾松Pinus massoniana人工纯林设置样地并进行调查。 结果 疫木卫生伐12 a后的结果表明:与马尾松纯林相比较，卫生伐之后马尾松重要值显著下降，从100.00%降至38.41%；胸径结构由正态分布变为反J型曲线；树高结构由单层林变为复层林；林木大小个体差异显著增加，两级分化显著加剧；林木分布从均匀分布变为随机分布；林木竞争压力增加，6 cm径阶林木竞争压力最大。 结论 卫生伐促使受害马尾松纯林向混交林演替的速度加快，多个林分结构指标发生了重大变化，单层马尾松同龄纯林演替为复层马尾松落叶阔叶树混交异龄林。图2表4参18
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| 关 键 词： | 森林生态学 马尾松人工纯林 松材线虫病 卫生伐 林分结构 |
| 收稿时间： | 2019-08-21 |
Effects of sanitation cutting pine wilt diseased trees on the stand structure of pure Pinus massoniana plantation |
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| ZHANG Huafeng,CHEN Siyu,LIU Gang,WANG Yixiang.Effects of sanitation cutting pine wilt diseased trees on the stand structure of pure Pinus massoniana plantation[J].Journal of Zhejiang A&F University,2020,37(4):745-751. |
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| Authors: | ZHANG Huafeng CHEN Siyu LIU Gang WANG Yixiang |
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| Abstract: | Objective This study aims to explore the effects of sanitation cutting of the diseased pine trees infected by Bursaphelenchus xylophlius on the stand structure of pure Pinus massoniana plantation and provide a reference for the management of P. massoniana invaded by B. xylophlius. Method Field plots were selected of both a pure P. massoniana plantation infected by B. xylophlius and its neighbouring plantation uninfected to be investigated in Lin’an, Zhejiang, China. Result After 12 years of sanitation cutting, compared with the uninfected pure P. massoniana plantation, it is shown that the importance values of P. massoniana significantly decreased from 100.00% to 38.41%. The stand diameter distribution followed an inverse J-shaped curve. In terms of height stricture, single storied stand changed into multi-storied stand. The individual size inequality significantly increased. The distribution pattern of trees changed from uniform distribution to random distribution. The competitive index of trees significantly increased, and that of trees at 6 cm diameter class was the highest. Conclusion The sanitation cutting accelerated the succession speed of the infected pure P. massoniana, with significant changes in several stand structure indicators and the single-storied even-aged pure P. massoniana stand succeeded by the mixed multi-storied uneven-aged P. massoniana and broad-leaved trees stand. Ch, 2 fig. 4 tab. 18 ref.] |
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