间伐对川中丘陵区人工柏木林下天然更新的影响

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英文篇名：The Effect of Intermediate Cutting on Natural Regeneration of Cupressus funebris Plantation 作者：赵润 ; 陈俊华 ; 牛牧 ; 别鹏飞 ; 慕长龙 英文作者：ZHAO Run;CHEN Jun-hua;NIU Mu;BIE Peng-fei;MU Chang-long;Mianyang Teachers' College;National Positioning Observation and Research Station of Forest Ecosystem in Longmen Mountain;Sichuan Academy of Forestry;Beijing Forestry University; 关键词：川中丘陵区 ; 人工柏木林 ; 带状采伐 ; 天然更新 英文关键词：Hilly areas of central Sichuan;;Cupressus funebris plantation;;Strip cutting;;Natural regeneration 中文刊名：四川林业科技 英文刊名：Journal of Sichuan Forestry Science and Technology 机构：绵阳师范学院;四川龙门山森林生态系统国家定位观测研究站;四川省林业科学研究院;北京林业大学; 出版日期：2019-04-15 出版单位：四川林业科技 年：2019 期：02 基金：国家科技支撑计划子课题(2015BAD07B0402);; 森林与湿地生态恢复与保育四川重点实验室资助项目 语种：中文; 页：13-17 页数：5 CN：51-1217/S ISSN：1003-5508 分类号：S754.1

摘要

以川中丘陵区"带状采伐+补阔"试验基地作为研究对象,调查其林下天然更新情况。结果表明:(1)采伐带、保留带天然更新的幼树幼苗明显高于对照样地(P<0.05)。10m、8 m、6 m、4m采伐带、保留带的天然更新幼树幼苗分别是对照的10.63倍、9.38倍、7.92倍、7.50倍和3.33倍、3.75倍、4.38倍、6.04倍。(2)采伐带、保留带、对照样地内的更新幼树幼苗的树高均显现为左偏单峰结构,且均以树高≤0.1m的幼苗数量最多。不同带宽采伐带和保留带内天然更新的幼树幼苗高度分级占比不尽相同。(3)所有处理下的天然更新的幼树幼苗均呈聚集状分布的状态,且聚集强度较大。(4)除柏木外,天然更新的树种种类多以香樟、香椿、乌桕等喜阳或半喜阳的为主。
        By experimental base of "strip cutting & planting broadleaf trees", the natural regeneration under the forest was investigated in the hilly area of central Sichuan. The results showed that(1) the natural regeneration seedlings in cutting and reserving zones were significantly higher than those in control plots(P< 0.05). The seedlings of natural regenerated young trees in 10 m, 8 m, 6 m, 4 m cutting belts and reserved belts were 10.63 times, 9.38 times, 7.92 times, 7.50 times and 3.33 times, 3.75 times, 4.38 times and 6.04 times of the control respectively.(2) The tree height of the regenerated saplings in the cutting zone, reserved zone and control plot showed a left-sided single-peak structure, and the number of seedlings with tree height of less than 0.1 M was the largest. The proportion of seedling height grading of natural regeneration was different in different bandwidth harvesting belts and retaining belts.(3) Natural regenerated young seedlings after undergoing all treatments showed aggregate distribution, and aggregation intensity was high.(4) In addition to cypress, most of the naturally regenerated tree species were sunny or semi-sunny, such as camphor, toon and Chinese tallow.

引文

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