气候变化领域集成服务门户(CCPortal): Agricultural land-use legacies affect soil bacterial communities following restoration in a global biodiversity hotspot

CCPortal

DOI	10.1016/j.biocon.2023.110437
	Agricultural land-use legacies affect soil bacterial communities following restoration in a global biodiversity hotspot
	Peddle, Shawn D.; Cando-Dumancela, Christian; Krauss, Siegfried L.; Liddicoat, Craig; Sanders, Angela; Breed, Martin F.
发表日期	2024
ISSN	0006-3207
EISSN	1873-2917
起始页码	290
卷号	290
英文摘要	Ecosystem restoration in post-agricultural landscapes is a critical response to agricultural land abandonment, climate change, and the escalating biodiversity crisis. However, effective restoration of these landscapes can be hampered by land-use legacies that create biotic and abiotic barriers to ecosystem recovery, particularly in ancient Tertiary landscapes where vegetation is adapted to nutrient deficient soils. While our understanding of how to overcome these barriers when restoring plant communities is improving, there is limited knowledge of how these legacies impact on recovery of soil microbiota - the biodiverse and functionally-important communities of soil microbes. Here, we used amplicon sequencing of the bacterial 16S rRNA gene extracted from soils across a restoration project in southwest Western Australia, a global biodiversity hotspot, to examine recovery of soil microbiota following post-agricultural restoration. We sampled soils at six sites under four land conditions - degraded post-agriculture, actively revegetated post-agriculture, passively regenerated, and remnant bushland - generating 1,609,618 sequences corresponding to 15,009 unique bacterial taxa. We show that soil bacterial communities in revegetated and degraded samples were similar across sites but strongly dissimilar to adjoining remnant samples. We show that limited recovery of bacterial communities was linked to elevated soil phosphorus levels. Together, our results indicate soil microbiota have not recovered despite revegetation taking place up to 17 years ago, and this lack of recovery is likely driven by soil nutrient legacies from past agricultural practices. Our study highlights a key challenge faced by conservation practitioners when integrating soil microbiota into ecosystem restoration in post-agricultural landscapes in ancient, nutrient-poor landscapes.
英文关键词	Land-use change; Microbiota; Post-agricultural restoration; Soil legacies
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:001154515800001
来源期刊	BIOLOGICAL CONSERVATION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299140
作者单位	Flinders University South Australia; University of Western Australia; Bush Heritage Australia
推荐引用方式 GB/T 7714	Peddle, Shawn D.,Cando-Dumancela, Christian,Krauss, Siegfried L.,et al. Agricultural land-use legacies affect soil bacterial communities following restoration in a global biodiversity hotspot[J],2024,290.
APA	Peddle, Shawn D.,Cando-Dumancela, Christian,Krauss, Siegfried L.,Liddicoat, Craig,Sanders, Angela,&Breed, Martin F..(2024).Agricultural land-use legacies affect soil bacterial communities following restoration in a global biodiversity hotspot.BIOLOGICAL CONSERVATION,290.
MLA	Peddle, Shawn D.,et al."Agricultural land-use legacies affect soil bacterial communities following restoration in a global biodiversity hotspot".BIOLOGICAL CONSERVATION 290(2024).