黄河三角洲地区是景观类型变化研究的热点地区。本文基于1983年、1987年、1991年、1995年、1999年、2004年、2010年和2014年的遥感资料.通过对黄河三角洲景观类型结构、变化速率、景观格局以及转换类型的定量分析从而揭示景观类型动态变化过程.并分析其驱动因素。研究结果表明:1)黄河三角洲地区耕地、湿地优势度较大;湿地、滩涂面积减少近五成。人工建设面积增加显著;2)研究时段内,前期以盐场/养殖用地变化幅度最大,后期以林地变化幅度最大;耕地始终是变化幅度最小的景观类型;3)各景观类型面积变化明显,区域景观破碎化程度明显提高;4)研究区主要的转换类型有耕地和湿地间转换、湿地和滩涂向盐场/养殖转换以及耕地和湿地向城镇村/工矿/交通用地转换三大类;5)研究区案观类型变化驱动因素包含作为先决条件的自然因素和起主导作用的人为因素两部分。
The Yellow River Delta is always hot area to the research on land use change. Based on the remote sensing image of 1983/1987/1991/1995/1999/2004/2010/2014a, through quantitative analysis of the land use structure, the rate of landscape type change, the landscape pattern and the diversion types of land use, it displayed that the dynamic change of land use and land cover in the in the Yellow River Delta, and discussing the driving force factors of the change. The results showed that: 1) In the Yellow River Delta, farmland and wetland are the main land use/land cover types; during the research period, nearly 50% of wetland and mud flat has decreased and the area of artificial construction has increased sharply. 2) From 1983 to 2004, the land use dynamic degree ofsaltern and aquaculture was much higher than other land use types; from 2004 to 2014, the land use dynamic degree of woods was the greatest; throughout the period, the area of farm land changed smoothly. 3) In the Yellow River Delta, the area of landscape types changed significantly and the landscape fragmentation increased clearly.4) The main transformational types of landscape types in the researching area take place between farmland and wetland, from wetland and mud flat to saltern and aquaculture, and from agriculture and wetland to urbanized. 5) The analysis of driving force in land use change of the study area indicated that the natural factor, also as the main factor, was the prerequisite which decided the type of natural vegetation and the human factor accelerated land use change in the area.