海洋对海岸带土地利用变化的影响

海岸带是海陆交接过渡带,也是陆海相互作用剧烈地带,陆海相互作用通过土地利用变化（LUCC）表现出来,研究LUCC有益于深入认识人地相互作用与全球变化。借助地形图及TM影像资料,运用GIS方法,研究海南西部海岸带LUCC,并探讨出海洋与陆表的相互作用与相互影响。结果显示,海岸带LUCC变化显著,土地利用程度越近海岸线越高;各地类变化分持续增长型与波动变化型2大类,与海洋相关的土地利用类型多为持续增长型;海洋通过对海岸带地形、土壤、气候、动植物等自然要素作用于土地利用,表现为出现新的与海洋相关的土地利用类型及原有类型面积的增加;海洋强大的作用力使土地利用变化向有利于海洋功能发挥的方向演变。

Study on the Interaction of Land-ocean in Coastal Zone Based on LUCC

The coastal zone is the transition zone of land and ocean,also is the most intense area of interaction of land and ocean.The interaction of land-ocean can be manifested necessarily by land-use and land-cover change(LUCC).The coastal zone and LUCC are key areas to accurately understand human-land relationships and global changes.Through the research of LUCC in the coastal zone will help to achieve new results in the field of human-land relationships.With multi-period topographic maps and TM data,using the methods of GIS,we studied the LUCC in the western coast of Hainan and analyses the interaction and mutual influence of the oceans and earth surface.The results as follow: that the changes of LUCC are significant in coastal zone;the degree of LUCC is higher when its location is more near shoreline;the type of land use can be classed tow categories,i.e.continuing growth and fluctuant changes;most marine-related land-use sub-types are continuing growth;by the topography,soil,climate,flora and fauna and other natural elements,ocean thereby affect land use / cover changes;these changes be exhibited by the emergence of new marine-related land-use types and the increase of original types;the ocean are strong and produced power to force the system of earth surface corresponding changes,and the result is the changes of land use / cover are the direction and evolution that benefit the exertion of ocean function.