气候变化领域集成服务门户(CCPortal): Enduring effects of large legumes and phosphorus fertiliser on jarrah forest restoration 15 years after bauxite mining

CCPortal

DOI	10.1016/j.foreco.2019.02.029
	Enduring effects of large legumes and phosphorus fertiliser on jarrah forest restoration 15 years after bauxite mining
	Daws M.I.; Grigg A.H.; Tibbett M.; Standish R.J.
发表日期	2019
ISSN	0378-1127
起始页码	204
结束页码	214
卷号	438
英文摘要	Restoring nutrients lost in the mining process and re-establishing nutrient-cycling are often key goals of mine restoration. One common strategy to facilitate these goals is to seed fast-growing legumes combined with one application of P-fertiliser to maximise legume growth and increase soil-N. However, the longer term effects of this strategy have received little attention. Here we report the results of a 15-year-old experiment that was established to test the effects of fertiliser-P application and seeding large understorey legumes, both singly and in combination, on jarrah forest restoration after bauxite mining. Fifteen years after the establishment of this experiment, the majority of the seeded legumes had senesced, with total legume cover having declined significantly compared with results of the same experiment at 5-years-of-age. Yet, despite the legumes having senesced there were still negative effects of both large legumes and P-fertiliser on species richness and abundance of non-leguminous understorey species. These negative effects may be mediated by the persistent effects of legume competition that was evident at 5 years and the accumulation of significant quantities of leaf litter and fine woody debris in the large legume × P-addition treatments. Compared with the 0 kg P ha −1 treatment, application of 20 kg P ha −1 significantly increased jarrah tree growth, but there was no additional benefit of 80 kg P ha −1 . These data suggest that moderation of P-fertiliser and large understorey legumes could maximise understorey cover, tree growth and understorey species richness, and therefore simultaneously address multiple key restoration goals. © 2019 Elsevier B.V.
英文关键词	Acacia; Competition; Fertilizer; Nitrogen; Rehabilitation
语种	英语
scopus关键词	Bauxite deposits; Competition; Fertilizers; Forestry; Nitrogen; Nitrogen fertilizers; Nutrients; Patient rehabilitation; Phosphorus; Restoration; Acacia; Common strategy; Fine woody debris; Mine restorations; Mining process; Nutrient cycling; Re-establishing; Species richness; Conservation; bauxite; competition (ecology); environmental restoration; experiment; fertilizer application; leaf litter; legume; mine; mining; nitrogen; phosphorus; remediation; species richness; woody debris; Competition; Fertilizers; Forestry; Nitrogen; Nutrients; Phosphorus; Acacia; Eucalyptus marginata
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156104
作者单位	Environment Department, Alcoa of Australia Ltd, Huntly Mine, PO Box 172, Pinjarra, WA 6208, Australia; Centre for Agri-Environmental Research & Soil Research Centre, School of Agricultural Policy and Development, University of ReadingBerkshire RG6 6AR, United Kingdom; Environment and Conservation Sciences, Murdoch University, 90 South Street, Murdoch, WA 6150, Australia
推荐引用方式 GB/T 7714	Daws M.I.,Grigg A.H.,Tibbett M.,等. Enduring effects of large legumes and phosphorus fertiliser on jarrah forest restoration 15 years after bauxite mining[J],2019,438.
APA	Daws M.I.,Grigg A.H.,Tibbett M.,&Standish R.J..(2019).Enduring effects of large legumes and phosphorus fertiliser on jarrah forest restoration 15 years after bauxite mining.Forest Ecology and Management,438.
MLA	Daws M.I.,et al."Enduring effects of large legumes and phosphorus fertiliser on jarrah forest restoration 15 years after bauxite mining".Forest Ecology and Management 438(2019).