Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12224-016-9269-5 |
Vegetation - environment relationships of the Hamersley Ranges, a mountainous desert of north-west Australia | |
van Etten, Eddie J. B.1; Fox, John E. D.2 | |
通讯作者 | van Etten, Eddie J. B. |
来源期刊 | FOLIA GEOBOTANICA
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ISSN | 1211-9520 |
EISSN | 1874-9348 |
出版年 | 2017 |
卷号 | 52期号:2页码:161-173 |
英文摘要 | Understanding environment-vegetation relationships provides important ecological insights, and here we examined such relationships for the Hamersley Ranges of North West Australia. We were particularly interested to see if such relationships were similar to those of other mountainous deserts. We used direct gradient analyses of floristic and environmental variables (constrained ordination), supplemented by identification of environmental differences between plant communities, assessment of environment-vegetation associations and partitioning of the floristic variance between environmental, climatic and spatial variables. Most communities could be differentiated from others according to environmental variables, with slope, surface stone cover, topsoil phosphorus and pH particularly good at differentiating between plant communities. There was strong association between communities and classes of landform and/or geological substrate. Gradient analysis demonstrated the primary floristic gradient was linked to a complex of several topographic, edaphic and geomorphic variables. This was interpreted as floristic change along broad topo-sequences from mountain/ridge tops to valley floors over which gradients in key environmental variables occur. Gradient analyses of other mountainous deserts have reported similar findings. A key distinction in the complex gradient identified for the Hamersley Ranges is the inclusion of topsoil phosphorus (rather than nitrogen) and time since last fire. The second most important floristic gradient was linked to soil pH and conductivity, which reflects floristic variation due to differences in geological substrate throughout the study area. |
英文关键词 | arid catena CCA floristics gradient analysis ordination vegetation |
类型 | Article |
语种 | 英语 |
国家 | Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000410776600003 |
WOS关键词 | PLANT-COMMUNITIES ; GRADIENT ANALYSIS ; CHIHUAHUAN DESERT ; SPECIES RICHNESS ; SONORAN DESERT ; PATTERNS ; SOIL ; SOUTH ; CLASSIFICATION ; LANDSCAPES |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/198952 |
作者单位 | 1.Edith Cowan Univ, Sch Nat Sci, Ctr Ecosyst Management, 270 Joondalup Dr, Perth, WA 6027, Australia; 2.Curtin Univ Technol, Dept Environm & Agr, GPO Box U1987, Perth, WA 6845, Australia |
推荐引用方式 GB/T 7714 | van Etten, Eddie J. B.,Fox, John E. D.. Vegetation - environment relationships of the Hamersley Ranges, a mountainous desert of north-west Australia[J],2017,52(2):161-173. |
APA | van Etten, Eddie J. B.,&Fox, John E. D..(2017).Vegetation - environment relationships of the Hamersley Ranges, a mountainous desert of north-west Australia.FOLIA GEOBOTANICA,52(2),161-173. |
MLA | van Etten, Eddie J. B.,et al."Vegetation - environment relationships of the Hamersley Ranges, a mountainous desert of north-west Australia".FOLIA GEOBOTANICA 52.2(2017):161-173. |
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