国土资源科技管理
國土資源科技管理
국토자원과기관리
Scientific and Technological Management of Land and Resources
2014年
2期
1~7
,共null页
石转弟 彭培好 王玉宽 傅斌 陈颖锋 何小玲
石轉弟 彭培好 王玉寬 傅斌 陳穎鋒 何小玲
석전제 팽배호 왕옥관 부빈 진영봉 하소령
土地利用变化 转移矩阵 动态度模型 成都市
土地利用變化 轉移矩陣 動態度模型 成都市
토지이용변화 전이구진 동태도모형 성도시
land use change ; transfer matrix; model of dynamic; Chengdu City
运用RS和GIS技术对成都市主城区2000-2010年土地利用变化进行了分析,结果表明:①主城区土地利用类型的变化主要是城市绿地与耕地和建设用地之间的相互转化,城市绿地转为建设用地的面积为6 850 hm2、占2000年城市绿地面积的41.47%,耕地转为建设用地的面积为5 323 hm2、占其面积的31.01%;②主城区土地利用变化速度较快,综合土地利用动态度指数达2.74%;单一土地利用类型动态度中以交通用地变化速度最大、年变化率达13.45%,其次是建设用地和耕地、年变化率分别为9.68%和-5.10%;③主城区土地利用程度呈现增强趋势,其总体变化值为0.134.这说明在主城区土地利用变化中,交通用地和建设用地的变化速度在整个城区的扩张中起到了决定性的作用,且随着经济的快速发展和城市化进程的加快,主城区土地利用集约度会进一步提高.
運用RS和GIS技術對成都市主城區2000-2010年土地利用變化進行瞭分析,結果錶明:①主城區土地利用類型的變化主要是城市綠地與耕地和建設用地之間的相互轉化,城市綠地轉為建設用地的麵積為6 850 hm2、佔2000年城市綠地麵積的41.47%,耕地轉為建設用地的麵積為5 323 hm2、佔其麵積的31.01%;②主城區土地利用變化速度較快,綜閤土地利用動態度指數達2.74%;單一土地利用類型動態度中以交通用地變化速度最大、年變化率達13.45%,其次是建設用地和耕地、年變化率分彆為9.68%和-5.10%;③主城區土地利用程度呈現增彊趨勢,其總體變化值為0.134.這說明在主城區土地利用變化中,交通用地和建設用地的變化速度在整箇城區的擴張中起到瞭決定性的作用,且隨著經濟的快速髮展和城市化進程的加快,主城區土地利用集約度會進一步提高.
운용RS화GIS기술대성도시주성구2000-2010년토지이용변화진행료분석,결과표명:①주성구토지이용류형적변화주요시성시록지여경지화건설용지지간적상호전화,성시록지전위건설용지적면적위6 850 hm2、점2000년성시록지면적적41.47%,경지전위건설용지적면적위5 323 hm2、점기면적적31.01%;②주성구토지이용변화속도교쾌,종합토지이용동태도지수체2.74%;단일토지이용류형동태도중이교통용지변화속도최대、년변화솔체13.45%,기차시건설용지화경지、년변화솔분별위9.68%화-5.10%;③주성구토지이용정도정현증강추세,기총체변화치위0.134.저설명재주성구토지이용변화중,교통용지화건설용지적변화속도재정개성구적확장중기도료결정성적작용,차수착경제적쾌속발전화성시화진정적가쾌,주성구토지이용집약도회진일보제고.
A systematic analysis is made of land use change in the main urban areas of Chengdu in the period of 2000 to 2010 applying RS and GIS techniques.The results show that:(1) The conversion of land use types is mainly between urban green land,crop land and construction land.41.47% of the total area of the urban green land in 2000 has heen turned into construction land,which increased an area of 6 850 hm2 ;31.01% of the total area of crop land in 2000 has been turned into construction land,increasing an area of 5 323 hm2.(2) The rate of land use change has speeded up dramatically,with the dynamic degree index of comprehensive land use amounting to 2.74%.As for the land use dynamic degree of single land use class,the maximum rate of change is transportation land,of which the annual change rate is 13.45%.While the annual change rate of construction land and crop land is respectively 9.68% and-5.10%.(3) The land use degree of the main urban areas takes on an increasing trend,the overall change value being 0.134.The rate of transportation land and construction land change played a decisive role in the expansion of the main urban areas.With the rapid economic development and the speeding up of urbanization process,land use intensity of the main urban areas will be further enhanced.