| 台湾基隆河流域水质与环境遥感制图及分析 |
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| 引用本文： | 许珺,傅肃性,黄绚.台湾基隆河流域水质与环境遥感制图及分析[J].地理科学进展,1999,18(3):267-273. |
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| 作者姓名： | 许珺 傅肃性 黄绚 |
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| 作者单位： | 中国科学院地理研究所资源与环境信息系统国家重点实验室,北京,100101 |
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| 摘 要： | 本文利用TM 影像和SPOT影象， 在地图资料、统计资料以及实测资料的基础上，进行了基隆河流域环境遥感制图， 并根据遥感影象灰度值与水体反射率和水中悬浮固体含量之间的相关关系，运用SPOT影象和实测数据将基隆河悬浮固体含量分为4 级。
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| 关 键 词： | 水质遥感 悬浮固体 环境背景 基隆河 |
| 收稿时间： | 1999-06-01 |
| 修稿时间： | 6/1/1999 12:00:00 AM |
The Water Quality and Environment Background Remote SensingMapping and Analysis in Jilong River Watershed, Taiwan |
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| XU Jun,FU Su-xing,HUANG Xuan.The Water Quality and Environment Background Remote SensingMapping and Analysis in Jilong River Watershed, Taiwan[J].Progress in Geography,1999,18(3):267-273. |
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| Authors: | XU Jun FU Su-xing HUANG Xuan |
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| Institution: | XU Jun, FU Su-xing, HUANG Xuan;
(The State Key Laboratory of Resources and Environment Information System, ;
Institute of Geograpy, CAS Beijing 100101) |
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| Abstract: | With the development of the remote sensing, it became more and more important in environmental monitoring. Especially in water quality remote sensing and environment background mapping, there has been a lot of work to be done. But water quality is relative to the environment and human's activities. The suspended sediment is one of the most important aspect of the water quality, so in this paper, some work about environmental background mapping and its relationship to the suspended sediment in Jilong River, Taiwan, is done. First, according to the suspended sediment concentration measured in field and the standard provided by Environment Office of Taiwan, the river suspended sediment concentration is divided into four levels. The grades of all the river are acquired by use of maximum likelihood classification of SPOT band 1 and 2. Then, the environmental background is acquired by supervised classification with TM and SPOT images based on the landuse map and other statistical information. The predominant background is forest, about 41% of the total area. The suspended sediment map and the environmental background map of Jilong River show that the suspended sediment concentration is lower in upper reaches of the river where the land is mainly forest, while it is higher in lower reaches of the river where the river flow through the city. By calculate the proportion of the length of every grade of water bordering upon every kind of environment background, we find that the suspended sediment concentration is related to the land cover and city pollution. The source of the suspended sediment is mainly the polluted warter poured from the city. |
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| Keywords: | Water quality remote sensing Suspended sediment Environmental background Jilong River |
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