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本文基于森林资源清查数据和野外调查资料,应用GIS空间分析技术和景观指数方法,研究了内蒙古地区的大青山自然保护区内西部、中部和东部3个分区中3种人为活动影响(居民点、道路、其他影响源)的空间分布、影响贡献率及其对景观格局的影响.结果表明:自然保护区中人为活动影响强度在东西部较高、中部较低.在3个分区中,西区的景观格局主要受到其他影响源的作用,使其针叶林、阔叶林、灌木林的景观格局趋于聚集分布;中区的景观格局主要受到道路的影响,使其阔叶林与灌木林景观斑块聚集程度降低;东区的景观格局主要受到居民点的影响,使其针叶林与阔叶林破碎度增加,灌木林与草地的景观斑块聚集度明显增大.
Based on the forest inventory data and the field survey data, three kinds of anthropogenic activities in residential areas in the western, central and eastern parts of the Daqingshan Nature Reserve in Inner Mongolia were studied using GIS spatial analysis technology and landscape index method (residential area, Road and other sources of influence), the impact of contribution rate and its impact on landscape pattern.The results show that the intensity of human activities in the nature reserve is higher in the east and west parts and lower in the middle part.In the three subregions, The landscape pattern is mainly affected by other sources of influence, which makes the landscape pattern of coniferous forest, broadleaf forest and shrubbery tend to gather and distribute. The landscape pattern in the central area is mainly influenced by the road, making the landscape of broad-leaved forest and shrubbery The degree of patch aggregation decreased. The landscape pattern in the eastern area was mainly affected by settlements, which caused the coniferous forest and broadleaf forest to increase their fragmentation, and the aggregation degree of shrubbery and grassland increased significantly.