中国科学院昆明植物研究所机构知识库
Advanced  
KIB OpenIR  > 资源植物与生物技术所级重点实验室  > 期刊论文
题名: Multi-scale comparison of topographic complexity indices in relation to plant species richness
作者: Yu, Fangyuan1; Wang, Tiejun1; Groen, Thomas A.1; Skidmore, Andrew K.1; null(杨雪飞)2; Geng, Yuying3; Ma, Keping3
刊名: ECOLOGICAL COMPLEXITY
关键词: Rhododendron ; Biodiversity ; Grain size ; DEM ; China ; Topographic complexity
英文摘要: Topographic complexity is a key component of habitat, which has been linked to increased species richness in many ecological communities. It can be measured in various ways and it is unclear whether these different measurements are mutually comparable when they relate to plant species richness at different spatial scales. Using a densely sampled set of observations for Rhododendrons (406 species and 13,126 georeferenced records) as a test case, we calculated eight topographic complexity indices from a 250-m resolution digital elevation model and examined their correlations with Rhododendron species richness in China at seven spatial scales: grain sizes 0.05 degrees, 0.1 degrees, 0.25 degrees, 0.5 degrees, 1.0 degrees, 1.5 degrees, and 2.0 degrees. Our results showed that the eight topographic complexity indices were moderately to highly correlated with each other, and the relations between each pair of indices decreased with increasing grain size. However, with an increase in grain size, there was a higher correlation between topographic complexity indices and Rhododendron species richness. At finer scales (i.e. grain size <= 1 degrees), the standard deviation of elevation and range of elevation had significantly stronger correlations with Rhododendron species richness than other topographic complexity indices. Our findings indicate that different topographic complexity indices may have positive correlations with plant species richness. Moreover, the topographic complexity-species richness associations could be scale-dependent. In our case, the correlations between topographic complexity and Rhododendron species richness tended to be stronger at coarse-grained macro-habitat scales. We therefore suggest that topographic complexity index may serve as good proxy for studying the pattern of plant species richness at continental to global levels. However, choosing among topographic complexity indices must be undertaken with caution because these indices respond differently to grain sizes. (C) 2015 Elsevier B.V. All rights reserved.
出版日期: 2015-06-01
卷号: 22, 页码:93-101
DOI标识: 10.1016/j.ecocom.2015.02.007
语种: 英语
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/21312
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Yu-2015-Multi-scale comparison of topographic.pdf(1922KB)----开放获取View Download

作者单位: 1.Univ Twente, Fac Geoinformat Sci & Earth Observat, Dept Nat Resources, NL-7500 AE Enschede, Netherlands
2.Chinese Acad Sci, Kunming Inst Bot, Lab Biogeog & Biodivers, Kunming 650204, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yu, Fangyuan]'s Articles
[Wang, Tiejun]'s Articles
[Groen, Thomas A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yu, Fangyuan]‘s Articles
[Wang, Tiejun]‘s Articles
[Groen, Thomas A.]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Yu-2015-Multi-scale comparison of topographic.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院昆明植物研究所 - Feedback
Powered by CSpace