基于遥感技术的乌达煤田火区变化监测 |
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引用本文: | 蒋卫国. 基于遥感技术的乌达煤田火区变化监测[J]. 煤炭学报, 2010, 35(6): 964-968 |
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作者姓名: | 蒋卫国 |
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作者单位: | 北京师范大学 减灾与应急管理研究院 |
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摘 要: | 采用遥感反演、自然间隔点分割与空间叠加分析等技术手段,提取1989、2001、2005年的乌达煤田火区范围,分析煤田火区的空间分布格局、空间演变态势、变化速度与变化趋势。研究结果表明:1989-2005年乌达煤田火区面积增加了9810 万m2,每年新增约613万m2,年增加率为248%,乌达煤田南部的A(12、13与14号)火区面积在逐渐减少,其他火区的面积在逐渐增加,并向四周扩散蔓延形成新的燃烧带。
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关 键 词: | 遥感;乌达煤田火区;变化监测 |
收稿时间: | 2009-12-14 |
修稿时间: | 2010-04-22 |
Change monitoring in Wuda coalfield fire area Based on remote sensing |
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Abstract: | The methods of remote sensing, natural break and spatial overlay were adopted to extract coal fire area of 1989,2001,2005, in Wuda coalfield, Inner Mongolia. Coal fire spatial distribution, change speed and extend direction were analyzed. The results show that 981.0 thousand square meters coal fire zones have been discovered with a 61.3 thousand square meters and a 2.48% increasing rate average year. Coal fire zones No.12, No.13 and No.14 in south part of Wuda decrease gradually. However, other coal fire zones increase and extend around. Some new coal fire burning belts have been formed. |
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