鞍山市铁矿景观格局变化的遥感调查

采用1997和2007年2个时相的卫星遥感数据,对鞍山市城区周边铁矿典型景观类型的面积及其10年来的变化进行了遥感调查和分析。结果表明,国有矿山采矿场的面积相对稳定,边界无明显变化,民营矿山采矿场面积增加明显。采矿场面积变化与开采方式有关,国有矿山采用深凹露天开采,对地表破坏较轻,民营矿山采用山坡露天开采,对地表破坏较严重。排岩场的总面积有所增加,个别矿区增加明显。复垦绿地有大幅度增加,但仍低于排岩场扩张的速度。

Remote- sensing Investigation of the Change of the View- pattern of the Iron Ore Mines around Anshan

By adopting 2 - time - phase satellite remotely sensed data in 1997 and in 2007, the author has made an investigation with the help of remote sensing and analysis of the area and change of the typical view - patterns of the iron ore quarries around Anshan in the recent ten years. The result of this investigation and analysis shows that the area of the state - owned mines has been relatively kept unchanged, with no obvious change of the boundary, and that of the private owned mines has obviously increased. This change, according to the study, is related to the modes of mining. It does slight harm to the surface of the soil when the state - owned mining enterprises adopt deep quarrying. By contrast, the private mining enterprises adopt along - hillside open cutting, ：which does more harm to the surface of the soil. The result also shows that the total area of the rock discharging sites has somewhat increased, with obvious increase in some mining areas; we also find from the result that the growth rate of the recla- mation and greenery has greatly increased, but it is still lower than that of the expansion of the rock discharging sites.