Assessment of forest geospatial patterns over the three giant forest areas of China

中国三大林区森林空间格局评价(英文)

Geospatial patterns of forest fragmentation over the three traditional giant forested areas of China （Northeastern, southwestern and Southern China） were analyzed comparatively and reported based on a 250-m resolution land cover dataset. Specifically, the spatial patterns of forest fragmentation were characterized by combining geospatial metrics and forest fragmentation models. The driving forces resulting in the differences of the forest spatial patterns were also investigated. Results suggested that forests in southwest China had the highest severity of forest fragmentation, followed by south region and northeast region. The driving forces of forest fragmentation in China were primarily the giant population and improper exploitation of forests. In conclusion, the generated information in the study provided valuable insights and implications as to the fragmentation patterns and the conservation of hiodiversity or genes, and the use of the chosen geospatial metrics and forest fragmentation models was quite useful for depicting forest fragmentation patterns.

以250米空间分辨率的中国土地覆盖图为主要信息源,报告中国传统三大林区(中国东北,中国西南和南部中国)森林破碎化空间格局对比分析结果,应用量化的景观空间指数和破碎化分析模型来刻画森林破碎化状态,分析了导致三大林区森林破碎化不同状态的驱动因子。结果表明,中国西南区森林破碎化程度最高,其次为中国南部森林,中国东北森林破碎化程度最低。巨大的人口压力和不合理的森林利用模式是导致森林破碎化的主要社会动因。总之,研究获得的信息传达了对森林破碎化的重要理解及其生态学含义,选用的空间指数以及森林破碎化分析模型对于刻画森林破碎化模式十分有效。图5表3参22。