CAJ | 학술논문

气田开发施工工程常常对植被造成破坏，改变土地利用现状，产生水土流失，因而加剧了项目区土壤侵蚀强度。以普光气田开发区为研究区，在3S技术支持下，运用空间分析方法，通过图层叠加、缓冲区分析与土地利用/覆盖变化轨迹提取，对气田开发区的生态系统破坏与恢复情况进行监测。结果表明：气田开发工程过程中会对植被和周围生态系统产生较大影响；工程前后土地利用变化主要体现在林地、耕地、草地和建设用地之间的转换上，其中气田开发区建设以占用耕地为主。但由于采取了相应的水土保持、生态恢复等措施，没有引发明显的水土流失和生态破坏，故工程中采取的措施有效，后期植被恢复较好。
기전개발시공공정상상대식피조성파배，개변토지이용현상，산생수토류실，인이가극료항목구토양침식강도。이보광기전개발구위연구구，재3S기술지지하，운용공간분석방법，통과도층첩가、완충구분석여토지이용/복개변화궤적제취，대기전개발구적생태계통파배여회복정황진행감측。결과표명：기전개발공정과정중회대식피화주위생태계통산생교대영향；공정전후토지이용변화주요체현재임지、경지、초지화건설용지지간적전환상，기중기전개발구건설이점용경지위주。단유우채취료상응적수토보지、생태회복등조시，몰유인발명현적수토류실화생태파배，고공정중채취적조시유효，후기식피회복교호。
Gas field development engineering project often exerts damage to vegetation,changing land use status,lead to soil and water losses,and increase soil erosion intensity of the project area. Based on 3S technology,taking Puguang gas field development zone as the research area,the ecosystem destruction and recovery situation of the gas field development zone were monitored through layer overlay,buffering analysis and land use/cover change trajectory extraction using spatial analysis method. Results showed that during the process of the project,great impacts were brought about on the vegetation and the surrounding ecosystem. Land use/cover conversions were mainly between forest,farmland,grassland and con-structive land before and after the project. Among those conversions,the occupied farmland was the main land use during gas field development construction. While because appropriate measures,such as soil and water conservation,ecological res-toration,had been taken during the construction,no obvious soil erosion and ecological destruction arose. The later engi-neering protection measures produced better vegetation restoration in the project area.