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| 西藏灌木林空间分布影响因素分析 | |
| 引用本文： | 张超,黄清麟,朱雪林,普布顿珠,旦增.西藏灌木林空间分布影响因素分析[J].林业科学研究,2011,24(1):21-27. |
| 作者姓名： | 张超 黄清麟 朱雪林 普布顿珠 旦增 |
| 作者单位： | 1. 中国林业科学研究院资源信息研究所,国家林业局林业遥感与信息技术重点实验室,北京,100091;西南林业大学资源学院,云南,昆明,650224 2. 中国林业科学研究院资源信息研究所,国家林业局林业遥感与信息技术重点实验室,北京,100091 3. 西藏自治区林业调查规划研究院,西藏,拉萨,850000 |
| 基金项目： | 中国林科院中央级公益性科研院所基本科研业务费专项资金重点项目"西藏灌木林资源评价与遥感监测技术研究(CAFYBB2007001)" 和重点课题"西藏森林生态安全屏障功能评估与生态补偿机制研究(CAFYBB2008035-1)"共同资助 |
| 摘 要： | 以西藏主要类型灌木林为研究对象,基于全区2002年森林资源分布图,分析了影响西藏各主要类型灌木林空间分布的主要环境因子,提取了包括经度、纬度、海拔、坡向、坡位和坡度等6个环境因子的数据,并对数据进行梯度划分,应用多重对应分析方法,定量研究了环境因子对西藏各主要类型灌木林空间分布的影响程度,并进行了影响因子排序。研究结果表明,总体上看,西藏主要类型灌木林的空间分布均在不同程度上受大尺度环境因子的影响,主要表现在经纬度和海拔上;在小尺度上,各环境因子通常表现为共同影响灌木林的分布。 |
| 关 键 词： | 西藏 灌木林 空间分布 环境因子 多重对应分析 |
| 收稿时间： | 2010/9/20 0:00:00 |
Analysis of Spatial Distribution and Effect Factors of Shrub in Tibet |
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| ZHANG Chao,HUANG Qing-lin,ZHU Xue-lin,PUBU Dun-zhu and DAN Zeng.Analysis of Spatial Distribution and Effect Factors of Shrub in Tibet[J].Forest Research,2011,24(1):21-27. | |
| Authors: | ZHANG Chao HUANG Qing-lin ZHU Xue-lin PUBU Dun-zhu and DAN Zeng |
| Institution: | Reasearch Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration, Beijing 100091, China;Faculty of Natural Resources, Southwest;Reasearch Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Key Laboratory of Forestry Remote Sensing and Information Technology, State Forestry Administration, Beijing 100091, China;Institute of Forest Inventory, Planning and Research of Tibet Autonomous Region, Lhasa 850000, Tibet, China;Institute of Forest Inventory, Planning and Research of Tibet Autonomous Region, Lhasa 850000, Tibet, China;Institute of Forest Inventory, Planning and Research of Tibet Autonomous Region, Lhasa 850000, Tibet, China |
| Abstract: | Based on the data of 14,281 shrub patches of Tibet in the year of 2002,the influencing factors were selected both at large scale (e.g. longitude, latitude and elevation) and on niche level (e.g. aspect, position and slope); the relationship between environmental factors and spatial distribution of 11 types of shrub was analyzed by Multiple Correspondence Analysis (MCA). The results showed that the spatial distribution of shrub in Tibet was mainly influenced by longitude and elevation at large scale. Moreover, It was found that the spatial distribution of shrub was usually affected by a combination of factors on niche level. Meanwhile, the orders of the influencing factors for 11 types of shrub were listed based on discrimination measures. |
| Keywords: | Tibet shrub spatial distribution environmental factors Multiple Correspondence Analysis |
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