Research on Spatial-temporal Changes and its Driving Force of Land use in the Yellow River Delta

With prominent spatiality and temporality as its characteristics, land utilization is a truly mirror of human activities based on nature.Since 1980s, the comprehensive study on land use and land cover issues had become a new research hotspot as well as an advanced topic of global environmental change and the earth systematic science.By way of remoter sensor and GIS technology, however, the study on land-use change has uncovered its rule of spatialtemporal variations and its driving mechanism, which have become the newest trend of current researches.Choosing Dongying City as the research area, on the basis of data from remote sensing of land resource, we divide the land-use type in Dongying with the support of 3S technology and use TM imagery as information source.We adopt transfer matrix and landscape metrics method to analyze the spatialtemporal feature of the regional land-use change.Combined with the statistic data, we will further study the social and economic factors that caused land-use change and the human driving force.This paper can also be used as a reference to the rational exploitation, efficient cultivation, optimal allocation, effective protection and comprehensive management of land resource in the Yellow River Delta.At the same time, this paper may provide some theoretical support to the successful implementation of national strategic on the Yellow River Delta's high-efficiency ecological economic zone. GENERAL SITUATION ABOUT THE STUDY AREAAs the greatest potential river delta in exploitation, Yellow River Delta has distinct advantage in land resource, favorable conditions of geographical location and abundant natural resource.It is one of the important areas in Shandong Province to keep dynamic equilibrium of the total cultivated land and enlarge arable lands.The main area situated in Dongying, Shandong Province, which appears as a fan-shaped triangle.Located between 118°05"～ 119°18'E and 36°55'～38°16'N, the total area is 13230.8km2.On account of the integrity of administrative region, this paper regard Dongying City as the representative area in Yellow River Delta (Dongying covers 93% of the Yellow River Delta acreage).