CAJ | 학술논문

本文利用陕西省合阳县1990、2000、2007年三期TM，ETM＋遥感影像等图件，基于ERDAS9.2平台构建知识库，使用分层分类法遥感解译三期影像，并辅佐以监督分类，非监督分类进行局部检验。随机精度检验结果符合要求，根据解译结果及实地踏勘进行变化监测,最终得出合阳县土地覆盖状况及其变化规律，提出合理化发展建议。同时对各种地物TM影像光谱特征曲线进行对比分析及机理解释。结果表明：近30年间，耕地先增加后减少，部分耕地转化为果园和居民地；草地先减少后增加，总减少幅度为7%，主要转化为耕地；居民地大幅度增加，主要是占用耕地；土地变化的驱动力主要是人口增加和产业结构调整。
본문이용합서성합양현1990、2000、2007년삼기TM，ETM＋요감영상등도건，기우ERDAS9.2평태구건지식고，사용분층분류법요감해역삼기영상，병보좌이감독분류，비감독분류진행국부검험。수궤정도검험결과부합요구，근거해역결과급실지답감진행변화감측,최종득출합양현토지복개상황급기변화규률，제출합이화발전건의。동시대각충지물TM영상광보특정곡선진행대비분석급궤리해석。결과표명：근30년간，경지선증가후감소，부분경지전화위과완화거민지；초지선감소후증가，총감소폭도위7%，주요전화위경지；거민지대폭도증가，주요시점용경지；토지변화적구동력주요시인구증가화산업결구조정。
Based on ERDAS 9.2 to build knowledge base, this thesis uses hierarchical classification method to interpret the TM and ETM+images of Heyang County in 1990, 2000 and 2007. According to the interpretation results and fieldwork, dynamically change monitoring was conducted to analyze the land use of Heyang, its variation and the development proposals. The mechanism was explained and the spectral curves of surface features were analyzed. The results show that: In the last three decades, arable lands decreased, mainly converting into orchards and residential areas; forest lands increased and then decreased, mainly converting into shrubs and orchards; residential areas increased sharply, mainly converted from farmlands. The main driving forces of land changes are population growth and industrial restructuring.