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| 天山云杉林林冠干扰前后植物多样性及其与环境的关系 | |
| 引用本文： | 刘云,侯世全,李明辉,潘存德.天山云杉林林冠干扰前后植物多样性及其与环境的关系[J].林业科学研究,2005,18(4):430-435. |
| 作者姓名： | 刘云 侯世全 李明辉 潘存德 |
| 作者单位： | 1. 北京农学院园林系,北京,102206 2. 中国农业大学资源与环境学院,北京,100094 3. 中国科学院华南植物研究所,广东,广州,510650 4. 新疆农业大学林学院,新疆,乌鲁木齐,830052 |
| 基金项目： | 国家自然科学基金（39660066、39960063）和教育部优秀青年教师资助计划项目资助 |
| 摘 要： | 林冠干扰后，林窗内因小环境的改变使得植被作出相应的反应。1999年对天山云杉林林窗内和林内的植被进行的调查结果表明：在本研究范围内的天山云杉林中，经过林冠干扰后，植被受一定的影响。林冠空隙内丰富度指数均大于林内；36．7％的林冠空隙内个体生态优势度小于林内；76．7％的林内的均匀度指数大于林冠空隙内；66．7％的林冠空隙Shannon个体多样性指数大于林内。林冠干扰前后，各环境因子和植物多样性之间有一定的相关关系。影响林冠空隙内各多样性指数的因子包括海拔、有效N、有机质、全K、全P和总盐，有效N、有机质、全K、全P和总盐对均匀度指数有显著性影响；而影响林内各多样性指数的因子包括坡向、坡位、坡度、光照强度、有效N、全K、全P和总盐，但仅有坡向、坡度、光照强度对生态优势度指数有显著性影响。 |
| 关 键 词： | 天山云杉 林冠干扰 物种多样性 环境因子 |
| 文章编号： | 1001-1498（2005）04-0430-06 |
| 收稿时间： | 12 20 2004 12:00AM |
| 修稿时间： | 2004-12-20 |
Relationship between Plant Diversity and Environment of Picea schrenkiana var.tianshanica Forest before and after Canopy Disturbances |
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| LIU Yun,HOU Shi-quan,LI Ming-hui and PAN Cun-de.Relationship between Plant Diversity and Environment of Picea schrenkiana var.tianshanica Forest before and after Canopy Disturbances[J].Forest Research,2005,18(4):430-435. | |
| Authors: | LIU Yun HOU Shi-quan LI Ming-hui and PAN Cun-de |
| Institution: | Department of Landscape Architecture, Beijing Agricultural College, Beijing 102206, China;College of Resource and Environment, China Agricultural University, Beijing 100094, China;South China Institute of Botany, Chinese Academy of Science, Guangzhou 510650, Guangdong, China;Department of Forestry, Xinjiang Agricultural University, Wurumuqi 830052, Xinjiang, China |
| Abstract: | After canopy disturbance, because of the change of surroundings in gaps, the vegetations have corresponding responses. The article was based on the surveying of vegetation in gaps and non-gaps in 1999. The results were showed that abundant indexes in gaps were larger than that in non-gaps; individual ecological dominance degree indexs in gaps were 36.7% less than those in non-gaps; having 76.7% of evenness indexs in non-gaps were larger than those in gaps; Shannon individual abundant indexes in gaps were 66.7% larger than those in non-gaps. Various envimrunent factors and plant diversity indexs had correlative relationship before and after canopy disturbance . In gaps, the main factors influencing plant diversity indexs were elevation, effective nitrogen, organic matter, full kalium, full phosphorus and general salt, but only effective nitrogen, organic matter, full kahum, fidl phosphorus and general salt had evident influnence on evermess indexs; in non-gaps, the main factors influencing plant diversity indexs were aspect of slope, location of slope, degree of slope, illumination intension, effective nitrogen, full kalium, flail phosphorus and general salt, but only aspect of slope, degree of slope, illumination intension had evident influnence on individual ecological dominance degree indexs. |
| Keywords: | Picea schrenkiana var tianshanica forest canopy disturbance plant diversity environmental factor |
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