黄河三角洲土地利用/土地覆盖变化研究现状与展望

土地利用/土地覆盖变化是全球环境变化研究的3个核心主题之一。黄河三角洲是我国乃至世界造陆速度最快的河口三角洲之一。伴随着人口的不断增加,黄河流域经济的发展,河口地带油气的开发,黄河三角洲土地利用/土地覆盖发生了迅速的变化,从而引发了土壤盐渍化、水污染严重、湿地资源保护受到威胁等一系列生态环境问题。论文以黄河三角洲为典型样区,把其土地利用/土地覆盖变化的研究作为全球环境变化研究的一个缩影,为全球性土地利用/土地覆盖变化模型的建立提供依据。论文首先介绍了黄河三角洲概况,其次对该地区土地利用/土地覆盖变化探测方法、结果进行了对比、归纳,接着回顾了该地区对土地利用/土地覆盖变化的驱动力分析以及模型预测,然后介绍了土地利用/土地覆盖与环境变化交互作用等的研究状况,最后总结了目前黄河三角洲土地利用/土地覆盖研究所取得的成绩和存在的不足,同时为进一步开展该地区的研究工作提出了若干建议。

The Review and Prospect on Land Use and Land Coverr Change Research in Yellow River Delta

Land use/land cover change is one of the three core subjects o f global environmental change.The Yellow River Delta is one of the quickest land-creation areas in China and the world.With the increase of population,develo pment of economy and exploitation of oil,the land use and land cover changes rapidly.In the mean time,it brings on a series of environmental problems,incl uding soil salinization,severe water pollution,and menace of wetland resources protection.This paper regards the Yellow River Delta as a typical region to st udy the global environment change,and provides one of the evidences to constru ct global land use/land cover change model.Firstly,this paper introduces the general situation of this area;secondly,it contrasts and concludes the monito ring methods and results of land use/land cover change;thirdly,reviews the drivers of land use/land cover change and simulation models;afterwards,prese nts the development of study and mutual responses on land use/land cover and environment change;then,summarizes the achievements and shortcomings;finally ,discusses future research direction.