For recent years reclamation technique has been rationally employed in collapse sites, Fushun coal mine. Collapse sites that had lost original land function were refilled with coal gaugue, then covered with soil, making them cropland. After reclamation, soil nutriton was gradually rising, physical features and struction of the soil were thus formed, and even improved. Heavy metals (Pb, Cu, Cd, As) in the tap soil were decreasing with weathering and leaching. Nutrient elements (N, P, K) have been obviously accumulated in the top soil, their contents have reached to "National standard of land reclamation technique in China". At the same time, such solid waste as coal gangue was buried in the underground, which can play a role in controlling and preventing environmental pollution. It is very useful for obtaining economic, social and ecological benefits. The model for reclamation and ecological restoration in the collapse sites in Fushun coal mine proposed in the paper sets a good example for other mine areas in northeast region, even whole China.
LIU Jing-shuang, WANG Jin-da, ZHANG Xue-lin, YU Jun-bao, YAN Deng-hua
. A Study on the Reclamation and Ecological Reconstruction in Collapse Sites in Coal Mine Area──A Case of Fushun Coal Mine[J]. SCIENTIA GEOGRAPHICA SINICA, 2000
, 20(2)
: 189
-192
.
DOI: 10.13249/j.cnki.sgs.2000.02.189
[1] 国家土地管理局.中华人民共和国行业标准TD“土地复垦技术标准”(试行)[S].1995.
[2] 杨居荣,等.采煤塌陷地的生态复垦—以唐山开采煤矿为例[J].中国环境科学,1990,19(1):85~90.
[3] 孟宪玺,等.吉林省土壤化学元素背景值研究[M].科学出版社,1995.148~154.
[4] 宋乃相.抚顺土壤[M].沈阳:东北工学院出版社.1987.143~144.
[5] 田贵昌.应用二组判别分析的综合指标对复垦试验田的评价[J].抚矿科技, 1993,(3),54~57.