摘要:
分别选取1992年、1996年、2000年、2004年、2009年和2013年6个时期遥感影像,从生态系统结构和生态系统景观格局角度研究德兴铜矿矿产资源开发区生态环境20 a间变化。结果表明:德兴铜矿矿产资源开发活动导致森林和草地等自然景观面积持续减小,采矿场、尾矿库及排土场等人工景观面积持续增加;区域生态系统质量朝变差的方向发展,总体表现为生态系统斑块数增加,斑块密度增大,聚集度指数下降,生态系统破碎程度加重;近20 a来矿产资源开采活动不断加强,生态系统破坏面积逐年增加,矿山生态恢复工程滞后。
Abstract:
The changes of the ecological environment of the Dexing copper mineral resources development area in the past two decades were studied in the aspects of ecosystem structure and ecosystem landscape pattern reflected by the remote sensing images obtained in 1992 , 1996 , 2000 , 2004 , 2009 and 2013 . According to the results obtained, the development activity in the Dexing copper mining area led to the continuous decrease of forests, grasslands and other natural landscape areas and the unceasing increase of mining field, tailings, field area dump and other artificial landscape areas; regional ecosystem quality became worsen and worsen, the ecosystem fragmentation was aggravated, and the overall performance was towards the increase of the ecosystem mean patch areas and the patch density, together with the decrease of aggregation index. Over the past two decades, mineral resource extraction activities became increasingly intense, the ecosystem damage area was increased year by year, whereas the ecological restoration project for this area was lagging behind.
下载: