皖北刘桥矿采煤塌陷区生态环境动态监测

基于多时相的遥感影像数据,采用遥感技术动态监测皖北刘桥矿区近20 a来土地覆盖变化、塌陷积水区水深及分布和水环境富营养化状态。监测结果表明:2012年矿区塌陷积水面积已达到研究区总面积的23.86%,最大积水水深超过4 m,积水区水质已达到轻度-中度富营养化状态。在此基础上,根据因地制宜、合理开发的原则,对塌陷水域进行划分,提出建立以生态农业为核心,集成景观湿地、休闲娱乐和调蓄功能的采煤塌陷区生态环境综合治理模式。 

Dynamic monitoring of ecological environment of subsidence area of Liuqiao coal mining area in Northern Anhui

In this paper, remote sensing technology has been applied in monitoring of the land cover variation, detection of water depth and distribution as well the eutrophication of water environments in subsided water-accumulating area in past 20 years on the basis of the multi-temporal remote sensing images. The results show that the subsided water-accumulating area has reached 22.23% of the total study area in 2012, the maximum water depth is over 4 meters, and the water is at slight to moderate eutrophication level. According to local conditions and reasonable development, we divide the subsided water area and propose an comprehensive restoration model of ecological environment, which would emphasize on the establishment of ecological agriculture, integration of landscape of wetlands, entertaining and regulation and storage functions in the coal mining.-induced subsidence area.