globalchange  > 全球变化的国际研究计划
DOI: 10.1007/s10021-018-0321-6
WOS记录号: WOS:000480546800008
论文题名:
Microtopographic Drivers of Vegetation Patterning in Blanket Peatlands Recovering from Erosion
作者: Harris, A.1; Baird, A. J.2
通讯作者: Harris, A.
刊名: ECOSYSTEMS
ISSN: 1432-9840
EISSN: 1435-0629
出版年: 2019
卷: 22, 期:5, 页码:1035-1054
语种: 英语
英文关键词: natural revegetation ; DSM ; eroded peatland ; restoration ; drone ; topography ; random forest
WOS关键词: RANDOM FORESTS ; PEAT ; SPHAGNUM ; BOGS ; RESTORATION ; DYNAMICS ; GROWTH ; MIRE ; CLASSIFICATION ; TOPOGRAPHY
WOS学科分类: Ecology
WOS研究方向: Environmental Sciences & Ecology
英文摘要:

Blanket peatlands are globally rare, and many have been severely eroded. Natural recovery and revegetation ('self-restoration') of bare peat surfaces are often observed but are poorly understood, thus hampering the ability to reliably predict how these ecosystems may respond to climatic change. We hypothesised that morphometric/topographic-related microclimatic variables may be key controls on successional pathways and vegetation patterning in self-restoring blanket peatlands. We predicted the occurrence probability of four common peatland plant species (Calluna vulgaris, Eriophorum vaginatum, Eriophorum angustifolium, and Sphagnum spp.) using a digital surface model (DSM) generated from drone imagery at a pixel size of 20 cm, a suite of variables derived from the DSM, and an ensemble learning method (random forests). All four species models provided accurate fine-scale predictions of habitat suitability (accuracy > 90%, area under curve (AUC) > 0.9, recall and precision > 0.8). Mean elevation (within a 1 m radius) was often the most influential variable. Topographic position, wind exposure, and the heterogeneity or ruggedness of the surrounding surface were also important for all models, whilst light-related variables and a wetness index were important in the Sphagnum model. Our approach can be used to improve prediction of future responses and sensitivities of peatland recovery to climatic changes and as a tool to identify areas of blanket peatlands that may self-restore successfully without management intervention.


Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/144998
Appears in Collections:全球变化的国际研究计划

Files in This Item:

There are no files associated with this item.


作者单位: 1.Univ Manchester ALB, Sch Environm Educ & Dev, Dept Geog, Oxford Rd, Manchester M13 9PL, Lancs, England
2.Univ Leeds, Sch Geog, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England

Recommended Citation:
Harris, A.,Baird, A. J.. Microtopographic Drivers of Vegetation Patterning in Blanket Peatlands Recovering from Erosion[J]. ECOSYSTEMS,2019-01-01,22(5):1035-1054
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Harris, A.]'s Articles
[Baird, A. J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Harris, A.]'s Articles
[Baird, A. J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Harris, A.]‘s Articles
[Baird, A. J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.