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Citation:

Analysis of Spatial Distribution and Effect Factors of Shrub in Tibet

  • Received Date: 2010-09-20
  • 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.
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Analysis of Spatial Distribution and Effect Factors of Shrub in Tibet

  • 1. 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
  • 2. Faculty of Natural Resources, Southwest
  • 3. 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.

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