| 姜博鑫,王佳旭,赵任义,刘 畅,田会鹏.抚育间伐对侧柏人工林生长和植物多样性的影响[J].林业调查规划,2026,51(2):27-35 |
| 抚育间伐对侧柏人工林生长和植物多样性的影响 |
| Effects of Tending Thinning on Growth and Plant Diversity ofPlatycladus orientalis Plantations |
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| DOI： |
| 中文关键词: 抚育间伐 间伐强度 林木生长 径阶分布 植物多样性 侧柏人工林 |
| 英文关键词: tending thinning thinning intensity tree growth diameter class distribution plant diversity Platycladus orientalis plantation |
| 基金项目:北京市园林绿化局“国有林场森林综合管护”项目. |
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| 中文摘要: |
| 以北京小西山侧柏(Platycladus orientalis)人工林为研究对象,通过设置15%(LT)、25%(MT)、35%(HT)3种间伐强度模式,以不做任何处理的样地作为对照(CK),研究不同抚育间伐强度对林木生长结构、径阶及林下植物多样性的影响。结果表明,抚育间伐对林木树高和胸径生长有明显的促进作用,随抚育间伐强度的增大,对林木胸径的生长促进作用更加明显;抚育间伐可有效改善林木径阶集中分布问题;抚育间伐后林下植物种类和数量均有所增加。对侧柏人工林抚育间伐强度调整以25%~35%为宜。 |
| 英文摘要: |
| This study investigated the effects of different tending thinning intensities on tree growth structure, diameter class distribution, and understory plant diversity in Platycladus orientalis plantations in
Xishan mountain region of Beijing. Three thinning intensities, 15% (LT), 25% (MT), and 35% (HT),were implemented, with an untreated plot serving as the control (CK). The results indicated that thinning significantly promoted tree height and diameter at breast height (DBH) growth, with the promoting effect on DBH becoming more pronounced as thinning intensity increased. Thinning effectively alleviated the issue of concentrated diameter class distribution. Both the species richness and abundance of understory plants increased after thinning. The recommended thinning intensity for P.orientalis plantations was between 25% and 35%. |
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