伊洛河流域森林景观要素斑块特征分析——以河南省洛宁县为例

Characteristic analysis on the patch sizes of forest landscape in the Yiluo river catchment-A case study from Luoning County

摘要: 运用景观生态学原理和GIS方法，研究1984～1999年间伊洛河流域森林各景观要素的斑块平均规模和粒级结构动态变化及其斑块特征变化趋势结果表明，该区自1984年以来森林景观要素斑块规模发生较大变化，但其粒级结构仍以小斑块为主，基本保持稳定，该区整体属于细粒结构景观。

Abstract: Supported by the principle of landscape ecology and the method of geographic inform ation system ，the dynamic changes of average patch sizes and grain grade structures of forest landscapes in Luoning County，Yiluo Basin are discussed from 1984 tO 1999 and the dynamic characteristics and the trends of patch sizes are opened out．Great changes have taken place in patch sizes of landscape in the resea rch region since 1984，but the grain grade structures are mainly the small patches，and this region is tO be the landscape of fine grain structure．