间伐强度对马尾松人工林间伐初期林下植被群落物种组成和多样性的影响

doi:10.13287/j.1001-9332.202009.009

应用生态学报 ›› 2020, Vol. 31 ›› Issue (9): 2866-2874.doi: 10.13287/j.1001-9332.202009.009

间伐强度对马尾松人工林间伐初期林下植被群落物种组成和多样性的影响

刘思泽¹, 尹海锋¹, 沈逸¹, 康文斯¹, 罗艳¹, 范川^1,2, 李贤伟^1,2*

¹四川农业大学林学院/长江上游森林资源保育与生态安全国家林业和草原局重点实验室, 成都 611130;
²长江上游林业生态工程四川省重点实验室, 成都 611130

收稿日期:2020-04-16 接受日期:2020-07-03 出版日期:2020-09-15 发布日期:2021-03-15
通讯作者: * E-mail: lxw@sicau.edu.cn
作者简介:刘思泽, 男, 1990年生, 博士研究生。主要从事森林培育研究。E-mail: liu_size@qq.com
基金资助:
国家重点研发计划项目(2017YFD0600302-05)、德国政府贷款四川林业可持续经营项目(G1403083)和四川省“天府万人计划”项目(1922999002)资助

Effects of thinning intensity on species composition and diversity of undergrowth vegetation community in Pinus massoniana plantation at initial stage of thinning

LIU Si-ze¹, YIN Hai-feng¹, SHEN Yi¹, KANG Wen-si¹, LUO Yan¹, FAN Chuan^1,2, LI Xian-wei^1,2*

¹College of Fore-stry/Key Laboratory of State Forestry Administration for Forest Resources Conservation and Ecological Security in Upper Reaches of Yangtze River, Sichuan Agricultural University, Chengdu 611130, China;
²Sichuan Province Key Laboratory of Forestry Ecological Engineering in Upper Reaches of Yangtze River, Chengdu 611130, China

Received:2020-04-16 Accepted:2020-07-03 Online:2020-09-15 Published:2021-03-15
Contact: * E-mail: lxw@sicau.edu.cn
Supported by:
the National Key R&D Program of China (2017YFD0600302-05), the German Government Loans for Sichuan Forestry Sustainable Management (G1403083) and the “Tianfu Ten Thousand Persons Plan” of Sichuan Province (1922999002)

摘要/Abstract

摘要： 以川东低山区29年生马尾松人工林为对象,研究了不同间伐强度(0、10%、20%、30%、40%、50%)处理1年后林下植被群落物种组成与多样性分异特征初期响应。结果表明: 各间伐处理均能降低草本植物芒、芒萁的优势地位,而各处理灌木的优势物种组成较复杂,中等间伐强度(20%、30%、40%)处理泛化种较其他处理明显增多。各多样性指数随间伐强度增高呈现先增后降的变化趋势,草本植物较灌木的分异性更强,且各指数与土壤含水量均呈显著正相关。间伐强度与土壤理化性质对群落分异解释量为81%,中等间伐强度林下植被群落除全磷外与其他因子表现出正相关关系。间伐初期草本植物群落较灌木群落更能积极响应干扰;40%间伐强度处理与土壤环境因子关系紧密,群落稳定性高,物种最为丰富,为本试验条件下间伐措施的最佳处理。

关键词: 马尾松, 间伐初期, 多样性

Abstract: Species composition and diversity of undergrowth vegetation community under different thinning intensities (0, 10%, 20%, 30%, 40%, 50%) were examined at the initial stage of thinning in 29-year-old Pinus massoniana plantation in the low mountain region of eastern Sichuan. The results show that all the thinning treatments could reduce the absolute dominance of Miscanthus sinensis and Dicranopteris dichotoma. The dominant species composition of shrubs in each treatment was different. There were more extensive species in the medium thinning intensity (20%, 30% and 40%) treatments than other treatments. The diversity indices increased first and then decreased with increasing thinning intensity. The variation degree of herbs was stronger than shrubs. The diversity indices of herbs were positively correlated with soil water content. The explanation amount of thinning intensity and soil physicochemical properties to community differentiation was 81%. The vegetation communities in the medium thinning intensity forests showed positive correlation with all the factors except total phosphorus. At the initial stage of thinning, herbaceous communities were more sensitive to disturbance than shrub communities. The 40% thinning intensity treatment was more closely related to soil environmental factors, with high stability and the most abundant species, which would be the best thinning measure under the experimental condition.

Key words: Pinus massoniana, initial stage of thinning, diversity

刘思泽, 尹海锋, 沈逸, 康文斯, 罗艳, 范川, 李贤伟. 间伐强度对马尾松人工林间伐初期林下植被群落物种组成和多样性的影响[J]. 应用生态学报, 2020, 31(9): 2866-2874.

LIU Si-ze, YIN Hai-feng, SHEN Yi, KANG Wen-si, LUO Yan, FAN Chuan, LI Xian-wei. Effects of thinning intensity on species composition and diversity of undergrowth vegetation community in Pinus massoniana plantation at initial stage of thinning[J]. Chinese Journal of Applied Ecology, 2020, 31(9): 2866-2874.

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间伐强度对马尾松人工林间伐初期林下植被群落物种组成和多样性的影响

Effects of thinning intensity on species composition and diversity of undergrowth vegetation community in Pinus massoniana plantation at initial stage of thinning

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