Yu Deyong, Hao Zhanqing, Jiang Ping, Xiong Zaiping, Yang Hui
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang.
Ying Yong Sheng Tai Xue Bao. 2004 Oct;15(10):1809-14.
Based on GIS and RS data of 1985 and 1999 and the ground information from Lushuihe Forest Bureau, this paper studied the forest landscape pattern and its changes in typical forest zone of Changbai Mountains. According to the standard variance of patch areas in 1985 and 1999, the patch area distribution of mature conifer forest, mature broad-leaved forest, middle-aged conifer forest, and middle-aged broad-leaved forest was less symmetrical, showing that these land covers had landscape diversity and species diversity. According to landscape similarity index, the mature conifer forest, mature broad-leaved forest, middle-aged conifer forest and middle-aged broad-leaved forest, which were relatively stable than other land covers, made the majority of the landscape in the study area. According to patch density, the porosity of wetland was high in 1985 and 1999, indicating that wetland had little homogenization and formed more mosaics. The fragmentation extent of farming land, due to multiple cultivating types, azimuths and shapes, was high in both phases. Attributing greatly to anthropogenic factors, the fragmentation extent of wetland was high all along. In brief, the forest landscape pattern was changed greatly in the studied phases, and human activities affected heavily on it.
基于1985年和1999年的地理信息系统（GIS）和遥感（RS）数据以及露水河林业局的地面信息，本文研究了长白山典型林区的森林景观格局及其变化。根据1985年和1999年斑块面积的标准差，成熟针叶林、成熟阔叶林、中龄针叶林和中龄阔叶林的斑块面积分布较不对称，表明这些土地覆盖类型具有景观多样性和物种多样性。根据景观相似性指数，成熟针叶林、成熟阔叶林、中龄针叶林和中龄阔叶林比其他土地覆盖类型相对稳定，构成了研究区域景观的主体。根据斑块密度，1985年和1999年湿地的孔隙度较高，表明湿地的同质化程度较低，形成了更多的镶嵌体。由于耕种类型、方位和形状多样，两个阶段耕地的破碎化程度都较高。湿地的破碎化程度一直很高，这在很大程度上归因于人为因素。总之，在研究阶段森林景观格局发生了很大变化，人类活动对其影响很大。
