摘要
以甘肃省中部地区生态环境治理工程重点区域为研究对象 ,以 1 990年陆地卫星 TM影像遥感解译结果为生态环境本底数据 ,以 2 0 0 0年同一季节 TM影像资料解译结果为现状数据 ,结合数字地形模型和实地调查结果 ,对该地区的生态环境进行动态监测。监测结果表明 :虽然在研究区内采取了退耕还林、小流域综合治理等改善生态环境的种种措施 ,环境依然趋向恶化。分析了 1 990年到 2 0 0 0年 1 0年间生态环境变化的原因 ,并提出相应的对策建议 ,为农业结构调整、生态环境建设等提供科学依据。
The central part of Gansu province is chosen as the study region because it is the main region for environmental amendatory projects in the province. Ecological environmental background data were got from the interpreting for Landsat TM image in 1990, and the actual data were retrieved from the same type of image in 2000. Assisted by digital terrain model and fieldwork results, the environment of this region can be monitored dynamically. The results show that although some steps including returning farmland to forest, integrated harnessing in small catchments were carried out, the environment still tends to deterioration. The reasons for environmental changing in the past 10 year from 1990 to 2000 were analyzed. Corresponding suggestions were also listed out.
出处
《遥感技术与应用》
CSCD
2002年第6期326-329,共4页
Remote Sensing Technology and Application
