摘要
充填复垦采煤沉陷地是实现矿区可持续发展的重要途径,不同的充填基质会影响覆土层的容重、结构、养分含量、重金属含量及农作物的生长。为采煤沉陷地的复垦提供参考依据,综述了煤矸石、粉煤灰和污泥等不同充填基质对覆土层物理性状、覆土层养分含量、覆土层重金属含量和农作物的影响与适宜覆土层厚度的研究进展,提出了覆土充填复垦采煤沉陷地时应注意的问题及防护措施。
Reclamation of the coal mine subsidence land by filling overbite soil was an important way to achieve sustainable development of the mining area.Different filling matrixes would affect the bulk density,structure,nutrient content,heavy metal content of the casing soil and the growth of crops.The author reviewed the effect of gangue,coal ash and sewage sludge to physical characteristics of overlaying soil,nutrient content of overlaying soil,heavy metal content of overlaying soil,crops and research progress of suitable overlaying soil thickness to provide the reference for reclamation of the coal mine subsidence land.Some suggestions and protection measures of reclamation of the mining subsidence land by filling overbite soil were put forward.
出处
《贵州农业科学》
CAS
北大核心
2012年第11期141-144,共4页
Guizhou Agricultural Sciences
基金
中央高校基本科研业务费专项资金项目(2010YD03)
关键词
土地复垦
充填基质
覆土层
采煤沉陷地
land reclamation
filling matrix
casing soil
coal mine subsidence land
