CAJ | 학술논문

以2001年和2011年2期TM图像为数据源，采用分类后比较法提取了10 a间天津市蓟县土地利用动态变化信息；利用空间分析算法生成地形起伏度和坡度2个地形因子，分析了不同地形特征上的土地利用类型分布及变化特征；从类型转换和动态度2个方面定量分析土地利用变化情况，并分析土地利用变化与地形起伏度和坡度的相关关系以及土地利用变化的影响因素。结果表明：地形地貌对土地利用的动态变化有显著的影响，在微缓起伏地形上，居民地增加最多，其次是水域，而林地减少最多；在低起伏和中起伏地形上，居民地增加最多；在山地起伏地形上，居民地有所增加；在高山起伏地形上，只有林地和未利用地有少量变化。该结果可以为天津市蓟县的生态保护以及半山区县土地利用规划提供科学依据。
이2001년화2011년2기TM도상위수거원，채용분류후비교법제취료10 a간천진시계현토지이용동태변화신식；이용공간분석산법생성지형기복도화파도2개지형인자，분석료불동지형특정상적토지이용류형분포급변화특정；종류형전환화동태도2개방면정량분석토지이용변화정황，병분석토지이용변화여지형기복도화파도적상관관계이급토지이용변화적영향인소。결과표명：지형지모대토지이용적동태변화유현저적영향，재미완기복지형상，거민지증가최다，기차시수역，이임지감소최다；재저기복화중기복지형상，거민지증가최다；재산지기복지형상，거민지유소증가；재고산기복지형상，지유임지화미이용지유소량변화。해결과가이위천진시계현적생태보호이급반산구현토지이용규화제공과학의거。
Jixian County in Tianjin City is a national ecological demonstration county. In order to study the influence of landform on land use dynamic change, the authors extracted the change information of land use in Jixian County for 10 years on the basis of TM images in 2001 and 2011 with post-classification comparison. Two terrain factors for relief degrees of land surface and slope were generated using spatial analysis algorithms. The distribution and variation features of the two land use types in different terrain features and the land use change were analyzed quantitatively in two aspects of type conversion and dynamic degree. The correlation between the change of land use type and the relief and slope was also analyzed. In addition, the influencing factors of land use change were investigated. The results show that the area of waters, farmland and residential land which expanded by 2. 46% has been increased in the past 10 years. The conversion of land use type are mainly from woodland to farmland and residential land, from farmland to woodland and residential land, and from unused land to farmland and residential land. The landform has a significant influence on the dynamic change of land use. The residential land has increased most conspicuously, followed by water area, whereas woodland decreases most obviously. In low relief and moderate relief landform, residential land has increased most obviously;in mountainous relief, residential land has somewhat increased; in high mountain relief landform, only woodland and unused land has changed a little. The research on geographic and geomorphic impact on land use dynamic change is of guidance significance for ecological protection. The results achieved by the authors can provide a scientific basis for land use in partly mountainous districts and counties.