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以沈阳市东部１９７６～１９８９年的历史航空像片为基础，以地理信息系统（ＧＩＳ）技 术为手段，分析土地利用的空间格局及其变化．结果表明，针叶林、水田平均嵌块体大小增 加，旱地、落叶林、灌丛平均嵌块体大小减少；分数维值略有增加．预示嵌块体形状逐步复 杂化；多样性指数、均匀性指数增加．优势度和蔓延度指数由原来的１．６３２７和８９．２０２２分 别减少到１．３２２６和８８．２７４４，说明景观嵌块体的空间分布趋于均匀，嵌块体的聚集分布状 况将随时间的推移逐步分散化．此外．本文对沈阳东部土地利用格局变化的原因进行了剖 析．
Based on the historical aerial photographs from 1976 to 1989 in the eastern part of Shenyang City, this paper analyzes the spatial pattern of land use and its changes by means of geographic information system (GIS) technology. The results showed that the average size of inlay blocks in coniferous forest and paddy field increased, and the average size of inlay blocks in dryland, deciduous forest and shrub decreased; the fractional dimension increased slightly. Which indicates that the shape of the embedded block is gradually complicated. The diversity index and the uniformity index increase. Dominance and spread index from the original 1.6327 and 89.2022 decreased to 1.3226 and 88.2744, indicating that the spatial distribution of landscape block lumps uniform distribution of agglomerates will be distributed over time Gradual decentralization shift. In addition. This paper analyzes the reasons for the change of land use pattern in eastern Shenyang.