普光气田开发区土地利用/覆盖扰动监测  

The Monitoring Research of Land Use/Cover Disturbance in Puguang Gas Field Development Zone

作　　者：汪东川[1] 黄勇[2,3] 张利辉[1] 

机构地区：[1]天津城建大学,天津300384 [2]东北林业大学,哈尔滨150040 [3]环境保护部环境工程评估中心,北京100012

出　　处：《天津城建大学学报》2014年第4期251-256,287,共7页Journal of Tianjin Chengjian University

基　　金：全国生态环境10年变化(2000-2010年)遥感调查与评估项目(STSN-11);天津市高等学校科技发展基金计划项目(20120526)

摘　　要：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.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 constructive 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 restoration,had been taken during the construction,no obvious soil erosion and ecological destruction arose. The later engineering protection measures produced better vegetation restoration in the project area.

关 键 词：普光气田工程 土地利用/覆盖扰动 3S技术 空间分析 生态修复监测 

分 类 号：X820.3[环境科学与工程—环境工程]