人工抚育措施对油松林生长及结构特征的影响

应用生态学报

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人工抚育措施对油松林生长及结构特征的影响

曹云^1,2；杨吉力²；宋炳煜²；黄和平²；杨明博²；郑敏²

¹中国科学院生态环境研究中心系统生态重点实验室,北京 100085;²内蒙古大学生命科学学院,呼和浩特 010021

收稿日期:2003-12-12 修回日期:2004-03-30 出版日期:2005-03-18

Effects of artificial tending on Pinus tabulaeformis forest growth and its structural characteristics

CAO Yun^1,2,YANG Yie²,SONG Bingyu²,HUANG Heping², YANG Mingbo²,ZHENG Min²

¹Department of Systems Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing 100085,China;²Department of Ecological and Environment Science,Inner Mongolica University,Huhhot 010021,China

Received:2003-12-12 Revised:2004-03-30 Online:2005-03-18

摘要/Abstract

摘要： 研究了人工抚育6年后油松林的生长状况、群落组成和结构.结果表明,不同人工抚育措施的油松林平均胸径、树高、冠幅均有极显著差异（P<0.01）,采取抚育措施的两个样地间的油松胸径和冠幅差异均达到显著水平,其中既打枝又间伐的油松林的胸径（7.8±0.29 cm）、树高（5.5±0.09 m）和平均冠幅（249±7.24 cm）最大,未打枝和间伐的油松林最小；随着人工抚育措施加强,单株油松的平均新叶、老叶和枝的生物量逐渐增加,达到极显著水平（P<0.01）；在不同抚育措施下,既打枝又间伐的油松林地上生物量最大（44.0 t·hm^-2）、未打枝和间伐油松林地上生物量最小（14.9 t·hm^-2）；油松新叶和老叶长度的差异性显著；油松的比叶面积在生长初期（5月和6月）和末期（9月）差异性显著；人工抚育措施增加了林下植被的种类数量和盖度.

关键词: 生态系统服务功能, 莽措湖流域, 经济价值

Abstract: The investigation on the growth status,community composition,and structural characteristics of Pinus tabulaeformis forest artificially tended for six years showed that there were significant differences in the average DBH, height, and crown size of the forest among the treatments DA (trimming without intermediate cutting),FA (trimming and intermediate cutting) and CK (without trending).Treatment FA had the highest values of average DBH (7.8±0.29 cm),height (5.5±0.09 m) and crown size (249±7.24 cm),while the CK had the lowest ones.The average biomass of new leaf (1-year-old),old leaf (2 or more-year-old),and branch per tree increased significantly (P<0.01) with enhancing tending treatments.The aboveground biomass of treatment FA was the biggest (44.0 t·hm^-2),and that of CK was the smallest（14.9 t·hm^-2）.The leaf length and SLA at the early and terminal stages of development (May,June and September) had significant difference among the treatments, and the amount of community composition and the cover degree of undergrowth plants increased evidently under artificial tending treatments.

Key words: Ecosystem services, Mangcuo Lake drainage basin, Economic value

曹云^1,2；杨吉力²；宋炳煜²；黄和平²；杨明博²；郑敏². 人工抚育措施对油松林生长及结构特征的影响[J]. 应用生态学报.

CAO Yun^1,2,YANG Yie²,SONG Bingyu²,HUANG Heping², YANG Mingbo²,ZHENG Min² . Effects of artificial tending on Pinus tabulaeformis forest growth and its structural characteristics[J]. Chinese Journal of Applied Ecology.

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人工抚育措施对油松林生长及结构特征的影响

Effects of artificial tending on Pinus tabulaeformis forest growth and its structural characteristics

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