The Tupu Analysis Of Land Use Pattern In Hadaqi Industrial Corridor

In the current research, this paper takes Hadaqi Industrial Corridor as the researcharea, land use and cover change data of1980,1990,2000,2010as the foundational datasource, uses Geographic information TUPU model to transform vector data into rasterdata (3km*3km). At the same time selects representative grids as the basic unit toanalysis its various types of land use quantitatively. So we can know the mutualconversion relations between various types of land use in each basic unit in the studyarea. Obtains1980-1990,1990-2000,2000-2010TUPU map of seven types of land-use,and discusses the source and fate of increasing and decreasing of the seven types ofland-use, and analysis the direction that each land-use type changes. The details are asfollowing:(1)The types of land use/cover in the study area are farmland, forest, grassland,water, construction land, unused land, wetlands. The land use types of eastern part of thestudy area are relatively simple, are mainly farmland, forest and construction land. Thetypes of land use/cover of western part of the study area are more complex, andstaggered distribution.(2)Farmland of the study area continues to increase, and the area of the increasingfarmland moves to southwest of the research area. The increasing area of farmlandbecomes fragmentation, grass and wetland are the primary sources of the increasing infarmland; the area of decreasing farmland gradually becomes less. The area of thedecreasing farmland migrates to the middle of the study area, and the farmlandtransforms to resident and unused land. The forest of the study area decreases and thenincreases. The increasing forest area moves to the west of the study area. The mainsource of increasing in forest is farmland, grassland and wetland; The decreasing forestarea in the middle of the study area becomes fragmentation, and scatters in the middleand western of the study area, and forest converts to farmland and grassland. Thegrassland continues to decrease in the study area, and belongs to the atrophic type of theland-use. The main sources of increasing in grassland are farmland, unused land andwetland. The area of the increasing grassland moves to Anda city and Zhaodong city,and then migrates back to the Daqing city; The decreasing area of grassland is in thecentral and western regions of the study area (the central of Daqing City, the south ofDumeng, the south of Tailai), and the whereabouts of decreasing grassland are mainlyfarmland, wetlands and unused land. The area of water fluctuates to change in the studyarea. The sources of increasing water area and the whereabouts of the decreasing water area are wetland, grassland and unused land. The center of gravity of the increasingwater area moves to the junction of Daqing and Anda; The decreasing water area ismainly concentrated in Dumeng, and the decreasing water area gradually moves to thecenter of Dumeng. Construction land is the dilated land-use type. The main sources ofincreasing construction land area are farmland, unused land, forest, and wetland. Thearea of the increasing construction land gets together to Harbin, Qiqihar and Daqing(themajor cities in the study area). The whereabouts of the decreasing construction area areforest land and unused land. The decreasing construction area moves to the west of thestudy area, and almost disappears at the end of the study. The unused land continues todecrease in the study area. The major sources of the increasing unused land arefarmland, grassland and wetland. The area of the increasing unused land significantlymoves the east of the study area; the whereabouts of the decreasing unused land aregrassland and wetland. The decreasing unused land area also moves the east of the studyarea. Wetland belongs to the atrophic type of land-use. The main sources of increasingin wetland and the whereabouts of the decreasing wetland are farmland, grassland andwater, and the increasing wetland is mainly located in southwest of Qiqihar, the south ofDumeng and the centre of Harbin. The increasing wetland area northward moves andconcentrates near to the Zhalong Wetland. The decreasing wetland is mainly located inTailai, and the decreasing wetland area moves to west of the study area.(3)Human activity is one of the main driving forces that change the land use typesdramatically in Hadaqi industrial corridor. There are so many kinds of natural resourcesin this study area. Just because high-intensity development of natural resources, theimplementation of food for the program, social development, urbanization, lead to theincreasing of farmland and construction land, the decreasing of forest, grassland andwetland area.