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学科主题: 地理学::自然地理学
题名: Cover as a simple predictor of biomass for two shrubs in Tibet
作者: Zhang, L (Zhang, Lin)1, 2; Cui, GS (Cui, Guangshuai)1, 3; Shen, W (Shen, Wei)1; Liu, XS (Liu, Xinsheng)4
通讯作者: Zhang, L
刊名: ECOLOGICAL INDICATORS
发表日期: 2016
DOI: 10.1016/j.ecolind.2016.01.009
卷: 64, 期:0, 页:266-271
收录类别: SCI
合作性质: 国内
文章类型: Article
英文摘要: Knowledge of the quantitative relationship between plant cover and its corresponding biomass for shrubs is not well known, especially for those on the Tibetan Plateau. Based on investigations of 35 sites, 90 plots and 95 standard individuals for two typical shrub species (Rhododendron nivale Hook. f. and Sophora moorcroftiana (Benth.) Baker) across Tibet, we developed allometric models for biomass estimation from measurements of crown diameter and/or height. We found that the parameters of crown projection area (CPA), height and their product (volume) were all significantly (p < 0.01) correlated with dry mass of different organs for both species at individual level. The CPA rather than volume best predicted aboveground dry mass. This is because that the bulk density declined significantly with increasing plant height, leading to the inappropriateness for plant height itself being employed as a parameter in biomass estimation, especially for shrubs in smaller size groups. At community level, cover was tightly correlated with the aboveground, belowground and total biomass (R-2 = 0.97-0.99). Therefore, biomass for the two shrubs can be simply estimated by measuring plant cover, which enables rapid estimation of shrubland carbon stock at large scales by using satellite data and repeated experiments over time. This non-destructive method using cover to estimate shrub biomass can be applied not only in arid ecosystems but also in alpine or subalpine environment. (C) 2015 Elsevier Ltd. All rights reserved.
语种: 英语
WOS记录号: WOS:000371098700027
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7714
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100101, Peoples R China
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
4.Jiujiang Univ, Coll Tourism & Terr Resources, Jiujiang 332005, Jiangxi, Peoples R China

Recommended Citation:
Zhang, L ,Cui, GS ,Shen, W ,et al. Cover as a simple predictor of biomass for two shrubs in Tibet[J]. ECOLOGICAL INDICATORS,2016,64(0):266-271.
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