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delta C-13 values of plants as indicators of soil water content in modern ecosystems of the Chinese Loess Plateau
Wei, Jie1; Liu, Weiguo1,2; Cheng, Jimin3,4; Li, Weijun5
2015-04-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume77Pages:51-59
SubtypeArticle
Abstract

We selected typical restored grassland along a chronosequence of natural vegetation restoration on the Chinese Loess Plateau ( CLP) and determined the soil water content once each month from April to October as well as the stable carbon isotope composition of six plant species ( C3), for both the aboveground ( d13CAP) and belowground ( d13CBP) portions, to examine the sensitivity of plant d13C values to soil water content in modern ecosystems. The study sites include three restored grasslands, which have been restored for 3 years ( RG1), 13 years ( RG2) and 23 years ( RG3) since farmland abandonment. Results showed that the soil water content increased significantly with vegetation restoration, with means of 7.3%, 10.7% and 13.1% for RG1, RG2 and RG3, respectively. The multispecies mean d13CAP and d13CBP values were 27.1m, 27.5m, 28m and 26.9m, 27.4m, 27.6m in RG1, RG2, RG3, respectively, decreasing significantly with vegetation restoration. Further analysis indicates that the multispecies mean d13CAP and d13CBP values were negatively correlated with soil water content, with r2 values of 0.72 and 0.98, respectively. The d13CAP and d13CBP values of all individual species were also significantly and negatively correlated with soil water content, except for Saussurea japonica, for which the d13CBP value increased with soil water content. Of all the plant species, the responses of both the d13CAP and d13CBP values to soil water content were more sensitive for Potentilla bifurca. We suggest that the d13CAP and d13CBP values of individual plant species are likely reliable indicators of the soil water content of the specific year of sampling and a longer- term ( several years) integrated signal, respectively. a 2015 Elsevier B. V. All rights reserved.

KeywordVegetation Restoration Delta C-13 Soil Water Content Negative Correlation Indicator
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.ecoleng.2015.01.012
WOS KeywordCarbon-isotope Discrimination ; Rainfall Gradient ; Organic-matter ; Electromagnetic Determination ; Natural-abundance ; Atmospheric Co2 ; Use Efficiency ; Desert Plants ; Short-term ; Vegetation
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000351705100008
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9346
Collection加速器质谱中心
Corresponding AuthorWei, Jie
Affiliation1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary, Xian 710075, Peoples R China
2.Xi An Jiao Tong Univ, Sch Human Settlement & Civil Engn, Xian 710049, Peoples R China
3.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
4.Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China
5.Adm Off Yunwu Mt Guyuan, Ningxia 756000, Guyuan, Peoples R China
Recommended Citation
GB/T 7714
Wei, Jie,Liu, Weiguo,Cheng, Jimin,et al. delta C-13 values of plants as indicators of soil water content in modern ecosystems of the Chinese Loess Plateau[J]. ECOLOGICAL ENGINEERING,2015,77:51-59.
APA Wei, Jie,Liu, Weiguo,Cheng, Jimin,&Li, Weijun.(2015).delta C-13 values of plants as indicators of soil water content in modern ecosystems of the Chinese Loess Plateau.ECOLOGICAL ENGINEERING,77,51-59.
MLA Wei, Jie,et al."delta C-13 values of plants as indicators of soil water content in modern ecosystems of the Chinese Loess Plateau".ECOLOGICAL ENGINEERING 77(2015):51-59.
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