CAJ | 학술논문

以LandsatTM和HJ-1影像为数据源，运用CART（classificationandregressiontree）决策树分类方法提取了丹江口库区1990，1995，2000，2005，2010年的土地利用信息，在此基础上采用土地利用转移矩阵、土地利用动态度和单一土地利用类型相对变化率等评价指标全面分析了丹江口库区1990-2010年土地利用时空变化情况，并对土地利用变化的主要原因进行了探讨。研究表明：1990-2010年丹江口库区土地利用变化主要表现为灌木大量转化为林地，耕地大量转为草地、灌木、建设用地、林地和园地；库区地质地貌、降雨条件、生态建设工程、经济利益、库区工程建设、移民安置和城镇迁建以及城市化的发展是丹江口库区土地利用变化的主要驱动因素。丹江口库区土地利用变化研究为库区生态环境建设和土地可持续利用提供有效的决策支持。
이LandsatTM화HJ-1영상위수거원，운용CART（classificationandregressiontree）결책수분류방법제취료단강구고구1990，1995，2000，2005，2010년적토지이용신식，재차기출상채용토지이용전이구진、토지이용동태도화단일토지이용류형상대변화솔등평개지표전면분석료단강구고구1990-2010년토지이용시공변화정황，병대토지이용변화적주요원인진행료탐토。연구표명：1990-2010년단강구고구토지이용변화주요표현위관목대량전화위임지，경지대량전위초지、관목、건설용지、임지화완지；고구지질지모、강우조건、생태건설공정、경제이익、고구공정건설、이민안치화성진천건이급성시화적발전시단강구고구토지이용변화적주요구동인소。단강구고구토지이용변화연구위고구생태배경건설화토지가지속이용제공유효적결책지지。
This paper illustrates the results of land use change and its driving forces in Danjiangkou Reservoir Area using muti-temporal remotely sensed data from 1990 to 2010. The decision tree classification technique was used to extract land use information from Satellite data. And the classification and regression tree （CART） method was applied to build the decision tree. The analysis indicated that woods and grass expansion of Danjiangkou Reser- voir Area resulted in the reduction of shrus and cultivated land from 1990 to 2010. Ecological construction and con- ditions of geology, geomorphy and rainfall were the two main factors that affect the land use change of Danjiangkou Reservoir Area. The study quantified the patterns of land use change and its driving forces in Danjiangkou Reservoir Area for the past 20 years, it forms valuable resources for decision makers to devise strategy for sustainable use of land.