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作 者 ：闫淑君¹;洪伟²

期 刊 ：应用生态学报 2009年 20卷 05期 页码：1243-1247

摘 要 ：基于RS和GIS技术，采用与土地利用动态度相关的一系列时空特征指数，研究了1989、1996和2005年闽江口琅岐岛土地利用的时空动态特征.结果表明：1989—2005年间，闽江口琅岐岛各土地利用类型均有所变化，但始终以农业景观为主;期间，该区水域的单一土地利用动态度最大（7.85%）;琅岐岛综合土地利用年变率为1.90%，土地垦殖率呈快速下降趋势，林地覆盖率和建设用地利用率呈增加趋势;研究区土地利用程度综合指数呈下降趋势，表明该区土地利用类型趋于多样化.

Abstract:By using RS and GIS techniques and a series of indices in characterizing the dynamics of land use, the spatiotemporal characteristics of land use in Langqi Island at Minjiang Estuary in 1989, 1996 and 2005 was studied. The results showed that in 1989〖KG-*2〗-〖KG-*7〗2005, the land use types in the Island all changed, but agricultural landscape was always the main land type. The single land use dynamics of water area was the largest, which reached 785% from 1989 to 2005. The annual change rate of comprehensive land use was 190%, the cultivation rate decreased rapidly, while the forest coverage and the construction land use rate increased. The comprehensive index of land use degree in the study area decreased, which indicated that the land use type tended to be diversification.

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