Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics

Abstract Water availability seriously affects vegetation restoration in arid mining areas, and mulching is an effective way to improve soil water conditions. Coal gangue occupies large swathes of land resources, resulting in ecological fragility and various environmental problems. Despite coal gangu...

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Autores principales:	Xiu-Na Han, Ying Dong, Yu-qing Geng, Na Li, Chao-Ying Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8cdb4e7dfd3e4af1ab33d433d5b8e79d
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spelling	oai:doaj.org-article:8cdb4e7dfd3e4af1ab33d433d5b8e79d2021-12-02T16:24:53ZInfluence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics10.1038/s41598-021-94806-02045-2322https://doaj.org/article/8cdb4e7dfd3e4af1ab33d433d5b8e79d2021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-94806-0https://doaj.org/toc/2045-2322Abstract Water availability seriously affects vegetation restoration in arid mining areas, and mulching is an effective way to improve soil water conditions. Coal gangue occupies large swathes of land resources, resulting in ecological fragility and various environmental problems. Despite coal gangue having mineral elements similar to those in soil, its potential function as a mulch for soil water conservation has been unclear. Herein, mulching on the surfaces of soil columns with 30 cm height and 15 cm inner diameter was conducted using coal gangue with four particle size ranges (0–0.5, 0.5–1, 1–2, and 2–4 cm) and four thicknesses (4, 8, 12, and 16 cm) under laboratory conditions to investigate water infiltration and evaporation under different conditions. The cumulative infiltration of the treatments with mulching thicknesses of 4 cm (T1), 8 cm (T2), 12 cm (T3), and 16 cm (T4) was 16.1%, 22.9%, 28.6%, and 41.6% greater than that of the control, respectively. The cumulative evaporation of the treatments with particle size ranges of 0–0.5 cm (P1), 0.5–1 cm (P2), 1–2 cm (P3), and 2–4 cm (P4) was 6.5%, 28.6%, 22.9%, and 18.6% lower than the control, respectively. Overall, to enhance the soil water storage capacity in mining areas, the results suggest that coal gangue mulching with a thickness of 8–16 cm and particle size range of 0.5–2 cm is suitable.Xiu-Na HanYing DongYu-qing GengNa LiChao-Ying ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xiu-Na Han Ying Dong Yu-qing Geng Na Li Chao-Ying Zhang Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics
description	Abstract Water availability seriously affects vegetation restoration in arid mining areas, and mulching is an effective way to improve soil water conditions. Coal gangue occupies large swathes of land resources, resulting in ecological fragility and various environmental problems. Despite coal gangue having mineral elements similar to those in soil, its potential function as a mulch for soil water conservation has been unclear. Herein, mulching on the surfaces of soil columns with 30 cm height and 15 cm inner diameter was conducted using coal gangue with four particle size ranges (0–0.5, 0.5–1, 1–2, and 2–4 cm) and four thicknesses (4, 8, 12, and 16 cm) under laboratory conditions to investigate water infiltration and evaporation under different conditions. The cumulative infiltration of the treatments with mulching thicknesses of 4 cm (T1), 8 cm (T2), 12 cm (T3), and 16 cm (T4) was 16.1%, 22.9%, 28.6%, and 41.6% greater than that of the control, respectively. The cumulative evaporation of the treatments with particle size ranges of 0–0.5 cm (P1), 0.5–1 cm (P2), 1–2 cm (P3), and 2–4 cm (P4) was 6.5%, 28.6%, 22.9%, and 18.6% lower than the control, respectively. Overall, to enhance the soil water storage capacity in mining areas, the results suggest that coal gangue mulching with a thickness of 8–16 cm and particle size range of 0.5–2 cm is suitable.
format	article
author	Xiu-Na Han Ying Dong Yu-qing Geng Na Li Chao-Ying Zhang
author_facet	Xiu-Na Han Ying Dong Yu-qing Geng Na Li Chao-Ying Zhang
author_sort	Xiu-Na Han
title	Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics
title_short	Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics
title_full	Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics
title_fullStr	Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics
title_full_unstemmed	Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics
title_sort	influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/8cdb4e7dfd3e4af1ab33d433d5b8e79d
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Influence of coal gangue mulching with various thicknesses and particle sizes on soil water characteristics

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