干旱区生态环境知识资源中心(Arid): Soil reconstruction after mining fails to restore soil function in an Australian arid woodland

Arid

DOI	10.1111/rec.13166
	Soil reconstruction after mining fails to restore soil function in an Australian arid woodland
	Duncan, Corrine 1; Good, Megan K.2; Sluiter, Ian 1; Cook, Simon 1; Schultz, Nick L.1
通讯作者	Duncan, Corrine
来源期刊	RESTORATION ECOLOGY
ISSN	1061-2971
EISSN	1526-100X
出版年	2020
卷号	28 页码:A35-A43
英文摘要	The biogeochemical properties of soils drive ecosystem function and vegetation dynamics, and hence soil restoration after mining should aim to reinstate the soil properties and hydrological dynamics of remnant ecosystems. The aim of this study is to assess soil structure in two vegetation types in an arid ecosystem, and to understand how these soil properties compare to a reconstructed soil profile after mining. In an arid ecosystem in southeast Australia, soil samples were collected at five depths (to 105 cm) from remnant woodland and shrubland sites, and sites either disturbed or totally reconstructed after mining. We assessed soil physico-chemical properties and microbial activity. Soils in the remnant arid ecosystem had coarse-textured topsoils that overlay clay horizons, which allows water to infiltrate and avoid evaporation, but also slows drainage to deeper horizons. Conversely, reconstructed soils had high sand content at subsoil horizons and high bulk density and compaction at surface layers (0-20 cm). Reconstructed soils had topsoils with higher pH and electrical conductivity. The reconstructed soils did not show increased microbial activity with time since restoration. Overall, the reconstructed soil horizons were not organized in a way that allowed rainfall infiltration and water storage, as is imperative to arid-zone ecosystem function. Future restoration efforts in arid ecosystems should focus on increasing sand content of soils near the surface, to reduce evaporative water loss and improve soil quality and plant health.
英文关键词	arid zone restoration biochemical properties inverse texture microbial biocrusts soil profile topsoils
类型	Article
语种	英语
国家	Australia
开放获取类型	Green Published
收录类别	SCI-E
WOS记录号	WOS:000538918300005
WOS关键词	MICROBIAL COMMUNITY ; RECLAIMED LAND ; PLANT ; TOPSOIL ; DESERT ; RECLAMATION ; MANAGEMENT ; VEGETATION ; STABILITY ; RESPONSES
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318738
作者单位	1.Federat Univ, Sch Hlth & Life Sci, Mt Helen, Vic 3350, Australia; 2.Univ Melbourne, BioSci, Parkville, Vic 3052, Australia
推荐引用方式 GB/T 7714	Duncan, Corrine,Good, Megan K.,Sluiter, Ian,et al. Soil reconstruction after mining fails to restore soil function in an Australian arid woodland[J],2020,28:A35-A43.
APA	Duncan, Corrine,Good, Megan K.,Sluiter, Ian,Cook, Simon,&Schultz, Nick L..(2020).Soil reconstruction after mining fails to restore soil function in an Australian arid woodland.RESTORATION ECOLOGY,28,A35-A43.
MLA	Duncan, Corrine,et al."Soil reconstruction after mining fails to restore soil function in an Australian arid woodland".RESTORATION ECOLOGY 28(2020):A35-A43.