Environment Monitoring over 1997—2002 with Remote Sensing in 5 National Environmental Project Sites

WU Bin-fang1; LI Miao-miao1; YAN Chang-zhen1; ZHANG Lei1; WANG Yi-mou2; ZHANG Shu-wen3; ZHOU Wan-cun4

doi:10.11834/jrs.20050105

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Environment Monitoring over 1997—2002 with Remote Sensing in 5 National Environmental Project Sites
Issue 1, Pages: 32-38(2005)
Published：2005
DOI： 10.11834/jrs.20050105
稿件说明：

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[1]吴炳方,李苗苗,颜长珍,张磊,王一谋,张树文,周万村.生态环境典型治理区5年期遥感动态监测[J].遥感学报,2005(01):32-38. DOI： 10.11834/jrs.20050105.

WU Bin-fang1, LI Miao-miao1, YAN Chang-zhen1, et al. Environment Monitoring over 1997—2002 with Remote Sensing in 5 National Environmental Project Sites[J]. Journal of Remote Sensing, 2005, (1): 32-38. DOI： 10.11834/jrs.20050105.

摘要

1998年以来中国在生态环境脆弱区实施了一系列生态建设工程

为了评估工程的效益

监测工程实施地区的生态环境变化趋势

在生态脆弱区选择了具有代表意义的5个典型区

采用遥感与地理信息系统技术结合的方法

对这些地区在1997—2002年5年内的生态环境变化进行了动态监测。监测结果表明

这5年来

退耕还林还草、天然林保护、防护林建设和小流域治理等生态环境建设工程已经取得较大进展

各治理区的环境正在逐渐改善。

Abstract

In order to combat the developing trend of eco-environment degradation

a series of national environmental projects have been carried out in frail ecological zone since 1998. The construction measures adopted by the projects include handing farmland back to forestland or grass land

protecting nature forestry from deforestation

planting sheltering forest

conserving soil and water

and so on. To evaluate the effect of the projects on eco-environment

five sites in different eco-environmental zones were selected as study areas to monitor the change of land cover over 1997—2002. Through analyzing the change of land cover

it suggests that as a result of national environmental projects

the eco-environment is rehabilitating gradually except for the study area of East-northern China. The sheltering forestry has increased 1479 hm2

farmland has increased

and forestland and grassland decreased in the region of the case site located in East-northern China. In the region of the case site located in the north of Beijing

the total area resulted from the construction project is 51492 hm2

farmland has decreased

and forestland and grassland have increased. In the region of the case site in the north part of Shanxi Province

the total area resulted from the construction project is 11115 hm2

farmland has decreased

and forestland and grassland have increased. In the region of the case site located in the middle part of Gansu Province

the total area resulted from the construction project is 17437 hm2

farmland has decreased

and forestland and grassland have increased. In the region of the case site in Sichuan Province

the total area resulted from the construction project is 65347 hm2

forestland has increased

and farmland and grassland have decreased.