The effects of replaced topsoil of different depths on the vegetation and soil properties of reclaimed coal mine spoils in an alpine mining area

	The effects of replaced topsoil of different depths on the vegetation and soil properties of reclaimed coal mine spoils in an alpine mining area
	Yang, Xinguang; Li, Xilai; Shi, Mingming; Jin, Liqun; Sun, Huafang
刊名	ISRAEL JOURNAL OF ECOLOGY & EVOLUTION
	2019
卷号	65 期号:2020-03-04
关键词	Alpine mining region coal mine spoils plant growth replaced topsoil depth soil properties
英文摘要	Replacement of topsoil to an appropriate depth is one of the key methods for ecological restoration. The objective of this study was to investigate the effects of topsoil replacement depth on vegetation and soil properties, and to identify the optimum soil depth for reclamation of coal mine spoils in a cold alpine mining area. We sowed 3 herbaceous species after coal mine spoil heaps were treated with topsoil to 3 depths (0, 20.25, 40.45 cm). The variations in vegetation community structure, plant growth, soil properties were measured at different replaced topsoil depths. The correlations between plant and soil properties were analyzed statistically. The results showed species richness, diversity and evenness were not significantly different among different depths of topsoil (P > 0.05). Vegetation coverage, density, height and aboveground biomass increased significantly (P < 0.05) with increasing topsoil depth. Soil properties did not change significantly with increasing topsoil depth (P > 0.05), but soil organic matter was significantly higher at 40.45 cm topsoil depth than at other two depths (P < 0.05). All soil properties, with the exception of total potassium, were positively correlated with the plant growth parameters. The 40.45 cm topsoil depth of replacement should be considered as effective method in reclaiming coal mine spoils. The use of both topsoil replacement to a depth of 40.45 cm and sowing of suitable herbaceous seeds is found to be an effective restoration strategy. Additionally, fertilization might be used as a substitute for artificial topsoil replacement to improve soil quality and speed up revegetation process by the positive plant-soil interactions.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/60499]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Yang, Xinguang,Li, Xilai,Shi, Mingming,et al. The effects of replaced topsoil of different depths on the vegetation and soil properties of reclaimed coal mine spoils in an alpine mining area[J]. ISRAEL JOURNAL OF ECOLOGY & EVOLUTION,2019,65(2020-03-04).
APA	Yang, Xinguang,Li, Xilai,Shi, Mingming,Jin, Liqun,&Sun, Huafang.(2019).The effects of replaced topsoil of different depths on the vegetation and soil properties of reclaimed coal mine spoils in an alpine mining area.ISRAEL JOURNAL OF ECOLOGY & EVOLUTION,65(2020-03-04).
MLA	Yang, Xinguang,et al."The effects of replaced topsoil of different depths on the vegetation and soil properties of reclaimed coal mine spoils in an alpine mining area".ISRAEL JOURNAL OF ECOLOGY & EVOLUTION 65.2020-03-04(2019).