检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:李文君[1] 陈贤章[1] 冉有华[1] 王丽红[1]
出 处:《遥感技术与应用》2002年第6期326-329,共4页Remote Sensing Technology and Application
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.
关 键 词:遥感 生态环境治理工程 应用 TM影像 退耕还林
分 类 号:X171.1[环境科学与工程—环境科学] TP79[自动化与计算机技术—检测技术与自动化装置]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.39