| 甘肃小陇山锐齿栎群落生物量特征分析 |
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| 引用本文： | 索安宁,巨天珍,张俊华,王勤花.甘肃小陇山锐齿栎群落生物量特征分析[J].山地学报,2006,24(1):123-128. |
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| 作者姓名： | 索安宁 巨天珍 张俊华 王勤花 |
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| 作者单位： | 1. 北京师范大学生命科学学院,北京,100875;西北师范大学,环境科学系,甘肃,兰州,730070
2. 西北师范大学,环境科学系,甘肃,兰州,730070 |
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| 基金项目： | 国家重点基础研究发展规划(973)项目(2002CB111507)，国家科技攻关项目(2004BA508B22)~~ |
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| 摘 要： | 对甘肃小陇山锐齿栎群落乔木层生物量进行大量的野外调查和分析,结果表明:1.锐齿栎单一优势种混交群落生物量最大,其次为锐齿栎-鹅耳枥等小乔木混交群落,而锐齿栎单一优势种群落(纯林)生物量相对较小,杂木林群落生物量最小,其生物量比锐齿栎单一优势种混交群落低34.27%;2.锐齿栎群落乔木层的生物量增长规律为在群落发育成熟(80林龄左右)之前生物量在一直增加,到形成稳定的群落结构(成熟林),生物量趋于稳定(200 t/hm2),随群落发育进入末期,生物量有可能稍有降低;3.锐齿栎群落乔木层生物量在阴、阳坡都随海拔梯度先升高,后降低,呈典型的“中间膨胀”模式。
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| 关 键 词： | 锐齿栎群落 生物量 特征 甘肃小陇山 |
| 文章编号： | 1008-2786-（2006）1-123-06 |
| 收稿时间： | 2005-06-01 |
| 修稿时间： | 2005-09-30 |
Analysis of Biomass Characteristics of Quercus aliena var.acutesrata Community on Mt. Xiaolongshan in Gansu |
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| SUO Anning,JU Tianzhen,ZHANG Junhua,WANG Qinhua.Analysis of Biomass Characteristics of Quercus aliena var.acutesrata Community on Mt. Xiaolongshan in Gansu[J].Journal of Mountain Research,2006,24(1):123-128. |
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| Authors: | SUO Anning JU Tianzhen ZHANG Junhua WANG Qinhua |
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| Institution: | 1. Life Science College, Belting Normal University,Beijing 100875, China ; 2. Department of Enuironment , Northwest Normal University, Lanzhou 730070, China |
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| Abstract: | The tree layer biomass characteristics of Quercus aliena var.acutesrata community on Mt.Xiaolong-shan in Gansu were analyzed and found that:(1) The biomass of the single Quercus aliena var.acutesrata dominant mixed community was the biggest,and the Quercus aliena var.acutesrata small trees mixed community was bigger than that of single Quercus aliena var.acutesrata dominant community,the copse community was the smallest one.The biomass of the copse community was 74.48% of that the single Quercus aliena var.acutesrata dominant mixed community.(2) The tree layer biomass of Quercus aliena var.acutesrata community was increasing in until the mature of community(80 years),then the biomass thrended to stability(200 t/hm~2) and decreased weakly with the community developed further.(3) The tree layer biomass of Quercus aliena var.acutesrata community increased along the elevation gradient first,then decreased,it showed unimodal model along aelevation gradient on both sunny and shade slope. |
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| Keywords: | Quercus aliena var acutesrata community biomass characteristics Xiaolongshan in Gansu |
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