气候变化领域集成服务门户(CCPortal): Disparities between plant community responses to nitrogen deposition and critical loads in UK semi-natural habitats

CCPortal

DOI	10.1016/j.atmosenv.2020.117478
	Disparities between plant community responses to nitrogen deposition and critical loads in UK semi-natural habitats
	Payne R.J.; Campbell C.; Stevens C.J.; Pakeman R.J.; Ross L.C.; Britton A.J.; Mitchell R.J.; Jones L.; Field C.; Caporn S.J.; Carroll J.; Edmondson J.L.; Carnell E.J.; Tomlinson S.; Dore A.; Dragosits U.; Dise N.B.
发表日期	2020
ISSN	1352-2310
卷号	239
英文摘要	Empirical critical loads are widely used to quantify and manage the ecological impacts of reactive nitrogen (N) deposition. Critical load values aim to identify a level of N deposition below which significant harmful effects do not occur according to present knowledge. Critical loads have been primarily based on experiments, but these are few in number and have well-known limitations, so there is a strong imperative to test and validate values with other forms of evidence. We assembled data on the spatial variability in vegetation communities in the United Kingdom and used Threshold Indicator Taxa Analyses (TITAN) to investigate linkages between species changes and modelled current and cumulative N deposition. Our analyses focused on five datasets: acid grasslands, alpine habitats, coastal fixed dunes, dune slacks and wet grasslands. In four of these habitats there was evidence for a significant decline in the cover of at least one species (a ‘species-loss change-point’) occurring below the critical load, and often at very low levels of N deposition. In all of the habitats there was evidence for clustering of many individual species-loss change-points, implying a community change-point analogous to an ecological threshold. Three of these community change-points occurred below the critical load and the remaining two overlapped with the critical load range. Studies using similar approaches are now increasingly common, with similar results. Across 19 similar analyses there has been evidence for plant species loss change-points below the critical load in 18 analyses, and community-level species loss change-points below the critical load in 13 analyses. None of these analyses has shown community change-points above the critical load. Field data increasingly suggest that many European critical loads are too high to confidently prevent loss of sensitive species. © 2020
关键词	Air pollution Ammonia Biodiversity Nitrogen deposition Threshold responses
语种	英语
scopus关键词	Nitrogen; Ecological impacts; Nitrogen deposition; Plant communities; Reactive nitrogen; Sensitive species; Similar analysis; Spatial variability; Vegetation community; Ecosystems; nitrogen; alpine environment; atmospheric deposition; critical load; dune; empirical analysis; experimental study; grassland; nitrogen; plant community; vegetation cover; air pollution; Article; biodiversity; grassland; habitat; nitrogen deposition; nonhuman; plant community; priority journal; redundancy analysis; United Kingdom; vegetation; United Kingdom
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248998
作者单位	Environment and Geography, University of York, York, YO105DD, United Kingdom; Scottish Environmental Protection Agency, Strathallan House, Stirling, FK94TF, United Kingdom; Lancaster Environment Centre, Lancaster University, Bailrigg, Lancaster, LA14YQ, United Kingdom; The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, United Kingdom; Institute of Biological and Environmental Sciences, University of Aberdeen, St Machar Drive, Aberdeen, AB243UU, United Kingdom; Centre for Ecology & Hydrology, Environment Centre Wales, Bangor, LL572UW, United Kingdom; School of Science and the Environment, Manchester Metropolitan University, Chester St, Manchester, M15GD, United Kingdom; Department of Animal and Plant Sciences, University of Sheffield, Alfred Denny Building, Sheffield, S10 2TN, United Kingdom; Centre for Ecology & Hydrology, Bush Estate, Penicuik, Midlothian, EH260QB, United Kingdom
推荐引用方式 GB/T 7714	Payne R.J.,Campbell C.,Stevens C.J.,et al. Disparities between plant community responses to nitrogen deposition and critical loads in UK semi-natural habitats[J],2020,239.
APA	Payne R.J..,Campbell C..,Stevens C.J..,Pakeman R.J..,Ross L.C..,...&Dise N.B..(2020).Disparities between plant community responses to nitrogen deposition and critical loads in UK semi-natural habitats.ATMOSPHERIC ENVIRONMENT,239.
MLA	Payne R.J.,et al."Disparities between plant community responses to nitrogen deposition and critical loads in UK semi-natural habitats".ATMOSPHERIC ENVIRONMENT 239(2020).