干旱区生态环境知识资源中心(Arid): Native plant diversity is a stronger driver for soil quality than inorganic amendments in semi-arid post-mining rehabilitation

Arid

DOI	10.1016/j.geoderma.2021.115001
	Native plant diversity is a stronger driver for soil quality than inorganic amendments in semi-arid post-mining rehabilitation
	Bateman, Amber M.; Erickson, Todd E.; Merritt, David J.; Veneklaas, Erik J.; Munoz-Rojas, Miriam
通讯作者	Bateman, AM (corresponding author), Univ Western Australia, Sch Biol Sci, Crawley, WA 6009, Australia.
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2021
卷号	394
英文摘要	Rehabilitation of mine sites in semi-arid landscapes is hindered by poor quality mine waste substrates, a byproduct of mining used as alternative growth media. Inorganic soil amendments, such as gypsum and urea, are sometimes used to improve the chemical and physical quality of mine waste substrates and increase native plant establishment. However, limited research is available regarding the medium and long-term effectiveness of these amendments in semi-arid post-mining landscapes. In this study, inorganic amendments were incorporated into two alternative mine substrates (mine waste and a topsoil:waste blend) in large 0.8 m(3) above-ground mesocosms in the semi-arid Pilbara region of Western Australia. These mesocosms were bare soil or seeded with one of two different mixes of plant species to determine how amendments and species diversity altered plant growth and survival, and substrate quality compared to stockpiled topsoil over a 21-month period. The unamended waste had a lower electrical conductivity (EC), soil carbon (C), soil nitrogen (N) and C/N ratio compared to the topsoil. The amendments had a strong initial effect on soil quality, increasing N, soil EC and N-mineralisation in the amended waste compared to all other soil treatments. However, N levels returned to non-amended levels after the first year and the amendments had limited influence on plant growth. Plant survival was higher in the amended substrates with the more diverse plant community, which increased substrate microbial activity to levels significantly greater than the unamended waste. The use of inorganic amendments may be ineffective at increasing long-term substrate quality and growth of native plants but may support seedling survival that in turn will improve soil chemical and biological properties of waste substrates.
英文关键词	Plant diversity Soil function Rehabilitation Fertilisers Semi-arid region Soil microbes
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000641587900003
WOS关键词	WESTERN-AUSTRALIA ; BAUXITE-MINE ; NITROGEN ; RESTORATION ; TOPSOIL ; BIOMASS ; STORAGE ; BARLEY ; GYPSUM ; REGION
WOS类目	Soil Science
WOS研究方向	Agriculture
来源机构	University of Western Australia
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350376
作者单位	[Bateman, Amber M.; Erickson, Todd E.; Merritt, David J.; Veneklaas, Erik J.; Munoz-Rojas, Miriam] Univ Western Australia, Sch Biol Sci, Crawley, WA 6009, Australia; [Bateman, Amber M.; Erickson, Todd E.; Merritt, David J.; Munoz-Rojas, Miriam] Kings Pk Sci, Dept Biodivers Conservat & Attract, Kings Pk, WA 6005, Australia; [Munoz-Rojas, Miriam] UNSW Sydney, Sch Biol Earth & Environm Sci, Ctr Ecosyst Sci, Randwick, NSW 2052, Australia
推荐引用方式 GB/T 7714	Bateman, Amber M.,Erickson, Todd E.,Merritt, David J.,et al. Native plant diversity is a stronger driver for soil quality than inorganic amendments in semi-arid post-mining rehabilitation[J]. University of Western Australia,2021,394.
APA	Bateman, Amber M.,Erickson, Todd E.,Merritt, David J.,Veneklaas, Erik J.,&Munoz-Rojas, Miriam.(2021).Native plant diversity is a stronger driver for soil quality than inorganic amendments in semi-arid post-mining rehabilitation.GEODERMA,394.
MLA	Bateman, Amber M.,et al."Native plant diversity is a stronger driver for soil quality than inorganic amendments in semi-arid post-mining rehabilitation".GEODERMA 394(2021).