干旱区生态环境知识资源中心(Arid): Inorganic soil amendments alter seedling performance of native plant species in post-mining arid zone rehabilitation

Arid

DOI	10.1016/j.jenvman.2019.04.022
	Inorganic soil amendments alter seedling performance of native plant species in post-mining arid zone rehabilitation
	Bateman, Amber M.1,2; Erickson, Todd E.1,2; Merritt, David J.1,2; Munoz-Rojas, Miriam 1,2,3
通讯作者	Bateman, Amber M.
来源期刊	JOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN	0301-4797
EISSN	1095-8630
出版年	2019
卷号	241 页码:179-186
英文摘要	Rehabilitation of degraded drylands is challenged by environmental and anthropogenic constraints, such as limited availability of locally-sourced topsoil and poor quality alternative soil substrates. Current rehabilitation practices, at times, utilise inorganic soil amendments to improve the physicochemical and biological characteristics of reconstructed soil profiles. These approaches may be appropriate for dryland rehabilitation, but there is limited research available regarding the benefits of using these amendments. Here, we present a study in the Pilbara region of Western Australia, an arid landscape subject to intensive mining that currently uses inorganic soil amendments (gypsum and urea) in post-mining rehabilitation. The aim of this study was to assess the effectiveness of these amendments to (1) promote seed germination, seedling emergence and seedling growth across five plant species and, (2) re-instate soil quality in mine waste substrates. A series of glasshouse experiments assessed eight application combinations of these amendments in two alternative substrates and compared these to unamended substrates and topsoil. Soil amendments had a limited influence on seed germination, were detrimental to seedling emergence and resulted in increased seedling mortality. Mortality in the waste ranged from 2 to 61% but increased to 7-92% in amended waste. Seedling growth improved with high doses of amendments in waste, with a 1.3-5.6-fold increase across all plant species. Soil quality was relatively unaffected by amendments with soil nitrogen ranging from 0.01 to 0.08%, organic carbon from 0.01 to 0.12% and soil microbial activity from 2.3 to 2.4 ppm-CO2 in the amended and unamended waste. The use of soil amendments in mine rehabilitation requires consideration of the trade-off between initial reductions in seedling recruitment and enhanced seedling development at later stages. Future rehabilitation should consider the timing of amendment application to avoid detrimental impacts on seedling recruitment and maximise the benefits to seedling growth.
英文关键词	Drylands Land degradation Pilbara Plant growth Seedling recruitment Soil quality
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E
WOS记录号	WOS:000469896300019
WOS关键词	NITROGEN-FERTILIZATION ; RESTORATION STRATEGIES ; SEMIARID CLIMATE ; TOPSOIL ; RECRUITMENT ; EMERGENCE ; SURVIVAL ; GERMINATION ; DROUGHT ; BIOMASS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
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/2XILL650/216966
作者单位	1.Univ Western Australia, Sch Biol Sci, Crawley, WA 6009, Australia; 2.Dept Biodivers Conservat & Attract, Kings Pk Sci, Kings Pk, WA 6005, Australia; 3.Univ New South Wales, Ctr Ecosyst Sci, Sch Biol Earth & Environm 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. Inorganic soil amendments alter seedling performance of native plant species in post-mining arid zone rehabilitation[J]. University of Western Australia,2019,241:179-186.
APA	Bateman, Amber M.,Erickson, Todd E.,Merritt, David J.,&Munoz-Rojas, Miriam.(2019).Inorganic soil amendments alter seedling performance of native plant species in post-mining arid zone rehabilitation.JOURNAL OF ENVIRONMENTAL MANAGEMENT,241,179-186.
MLA	Bateman, Amber M.,et al."Inorganic soil amendments alter seedling performance of native plant species in post-mining arid zone rehabilitation".JOURNAL OF ENVIRONMENTAL MANAGEMENT 241(2019):179-186.