摘要
土壤空间变异性是影响土壤生产能力的重要因素。本文在大量田间测试的基础上,引入地质统计学分析倒堆法露天采煤复垦土壤物理特性的空间变异性,得出了复垦土壤物理特性空间变异大、压实严重且压实最严重深度为20～40cm的结论;同时也发现土壤空间变异性与采矿方向密切相关;土壤剖面内的空间变异呈明显的规律性;空间变异性与压实成正比等重要结果。这些研究结果为改良土壤和改进采矿与复垦方法提供了依据和方向。
Spatial variability of soil is the key to affecting productive capacity of soil. Based on a large amount of soil tests in the field, the spatial variability of physical properties of reclaimed mined soil in a surface coal mine with Cross-pit Bucketwheel Excavation System is explored by use of geostatistics. Some encouraging results are obtained: (1) compaction of soil is severe, especially in the interval between topsoil and subsoil (20-40cm depth). (2) the variability is closely correlated with mining direction, and (3) the spatial variability in the soil profiles has a significant regularity. (4) the spatial variability of physical properties of reclaimed soil varies with compactness. These results provide the basic and useful information for ameliorating reclaimed soil and improving mining and reclamation techniques.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1992年第4期31-37,共7页
Journal of China University of Mining & Technology
关键词
煤矿
土地
复垦
土物理性质
变异性
land reclamation, physical properties of soil, spatial variability, geostatistics, penetrometer
