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The Spatial Pattern Of Land Use Change And Driving Force Analysis In Bazhong

Posted on:2015-11-21Degree:MasterType:Thesis
Country:ChinaCandidate:Q S XiangFull Text:PDF
GTID:2309330467461350Subject:Physical geography
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Land is the basis of human survival and social development. along with therelationship between population growth and socio-economic development, therelation between human and land is getting more and more closer and the interaction ismore and more stronger. The resulting resource, environmental or other issues also gotconcerned. The change of land use has become a major reason of environmentalchange, at the same time,Studying on land-use change and driving changes in land hasbecome a hot Geography.First of all, BaZhongShi was choosed for this research object,the use of GISplatform three years2000,2005, access to land remote sensing images usinginformation on land use change Bazhong nearly11years of spatial pattern analysis,combined with Bazhong2000-2010statistics, analyzes the driving factors caused byland use change, and then make specific practical protection against Bazhong drivingfactors of land use change, which Bazhong rational and efficient use of land resources,to achieve sustainable land development of great significance. The main contents of thearticle the study are:1、Analysis of the temporal and spatial pattern of land use change in Bazhong. Firstly,the three periods of remote sensing images of Bazhong in2000,2005,2010as the datasource, Using GIS platform, Bazhong city land use element extraction; Secondly,according to the classification of land use spatial database of the land use currentsituation, There are three phase of the land use map and land use data, as well as thethree periods of land use information, Finally, combined with the city of Bazhongdigital elevation model, analyze the characteristics of land use change from theperspective of space and time(1)、From the land use spatial perspective, Bazhong ‘s land is mostlydistributed in the altitude of1359m below the belt, the cultivated land resources inBazhong are mainly distributed in the slope of0°to35°The cultivated land resourcesin Bazhong city are mainly distributed in the slope of0°to35°,slope less cultivatedland resources in the above35°,only the total area of cultivated land2.52%, alevation of159M to1459m is mainly distributed in Bazhong city forest, and the forestdominated by evergreen and deciduous broad-leaved forest, alpine area distribution ofevergreen coniferous forest and shrub, Bazhong’s construction land is mainlydistributed in the altitude of159M to859m, especially the elevation in359m to459mof the construction land is the most concentrated, almost half of the area of land forconstruction. Bazhong grassland is mainly distributed in the altitude of159M to1459m,accounting for94.72%of the total area of grassland(2)、Fromtheperspectiveoflanduseoftime,in10years,the Bazhongcitylanduse change is the largest of the cultivated land and woodland and the change ofcultivated land area is the largest, to reduce the size of59.56km2, reduced as the largestclass and the area of arable land in2000,1.184%of the total area. Followed bywoodland increased36.52km2, most of the land area is increasing. The garden is thelargest increase of land for10years, an increase of86.1%compared with2000,then, theconstruction land, the increase amounted to32.034%, area increased by7.56km2.Grassland increase faster,10yares increased5.42km2, increased by23.678%. Thewaters increased less,10years increased by1.14km22、Analysis of the driving forces of land use change in Bazhong.Based on the analysis of land use change in Bazhong ‘s space structure, from twoangles of qualitative and quantitative on land use change in Bazhong’s force analysis.In qualitative analysis, by comparing the natural driving factors and human factors, thehuman driving factors are the main driving forces of land use change in Bazhong; usingprincipal component factor analysis in the analysis principle, combined with the2000-2010statistical yearbook data, using SPSS statistical analysis software, based onthe cultivated land of this special class as an example to quantitative analysis of landuse change driving factor, analysis results show that: from2000to201011yearsimages by the change of land are the main human driving factors of social andeconomic development of city, urbanization, population growth, industrial structureadjustment.3、 Countermeasures of sustainable utilization of land in Bazhong. On the base of the spatial pattern of land use and driving force analysis, separatelyfrom the optimization of population quality, economic development, adjusting theindustrial structure, improve the land regulations and continue to strengthensupervision of land use concept, improve people’s land protection consciousness, putsforward some countermeasures and suggestions for sustainable land use in BazhongCity of.
Keywords/Search Tags:Land use, Temporal and spatial change, Principal component analysis, Driving force, The sustainable countermeasures
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