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Ecosystem C:N:P stoichiometry and carbon storage in plantations and a secondary forest on the Loess Plateau, China
Cao, Yang1,2; Chen, Yunming1,2
2017-08-01
Source PublicationECOLOGICAL ENGINEERING
ISSN0925-8574
Volume105Pages:125-132
Corresponding AuthorChen, Yunming(ymchen@ms.iswc.ac.cn)
AbstractEstablishing plantations and protecting secondary forests are important measures to enhance carbon (C) sequestration in terrestrial ecosystems. We compared the C: nitrogen (N): phosphorous (P) stoichiometry of major ecosystem components and the C storage partitioning patterns in three 40-year-old forests of a fast-growing, N-fixing black locust plantation (Robinia pseudoacacia), an indigenous Chinese pine plantation (Pinus tabuliformis Carriere), and a secondary oak forest (Quercus liaotungensis) on the Loess Plateau, China. The concentrations of C, N, and P in tree tissues, herbs, litter and soils were measured by sampling. The tree tissues biomass was calculated using published species-specific allometric equations and the soil C stock of each soil layer is based on the soil layer depth, its bulk density, and C concentrations. Results showed that N concentrations of tree tissues, herbs, and litter in the N-fixing R pseudoacacia stands were significantly higher than those in the P. tabuliformis and Q liaotungensis stands. However, there were no significant differences in soil C and N concentrations between N-fixing and non-N-fixing stands. Soil P concentration was higher only in the R. pseudoacacia and P. tabuliformis plantations when compared to the secondary Q liaotungensis forest. Leaf N:P ratios indicated soil P limitation in the R. pseudoacacia plantation and the secondary Q liaotungensis forest (N:P ratios >16), while both N and P limitation were found in the P. tabuliformis plantation (N:P ratios = 14). No shrub vegetation was found in the plantations. Litter C storage was significantly lower in the R. pseudoacacia stands than in the P. tabuliformis and Q liaotungensis stands. The ecosystem C storage of the secondary Q. liaotungensis forest (359 t ha(-1)) was higher than that of the P. tabuliformis (298 t ha(-1)) and R. pseudoacacia (214 t ha(-1)) plantations. The majority of C storage was in the soil pool, accounting for 76.75%, 60.37%, and 67.93% in the R. pseudoacacia plantation, P. tabuliformis plantation, and the secondary Q. liaotungensis forest, respectively. These results indicate that the secondary Q. liaotungensis forest and indigenous P. tabuliformis plantation enhance C storage more substantially than the fast-growing R. pseudoacacia plantation in the long-term on the Loess Plateau. (C) 2017 Elsevier B.V. All rights reserved.
KeywordCarbon sequestration Ecosystem restoration Ecological stoichiometry Plant and soil
DOI10.1016/j.ecoleng.2017.04.024
WOS KeywordLOCUST ROBINIA-PSEUDOACACIA ; INCREASED ATMOSPHERIC CO2 ; ORGANIC-CARBON ; PHOSPHORUS STOICHIOMETRY ; TERRESTRIAL ECOSYSTEMS ; SUBTROPICAL CHINA ; PINE PLANTATIONS ; SOIL DESICCATION ; PONDEROSA PINE ; CLIMATE-CHANGE
Indexed BySCI
Language英语
Funding ProjectNational Nature Science Foundation of China[41371506] ; National Nature Science Foundation of China[41201088] ; Doctoral Fund of Ministry of Education of China[20120204120014] ; West Light Foundation of The Chinese Academy of Sciences[K318021304] ; Specialized Research Fund for the Doctoral Program of Higher Education[2014YB056]
Funding OrganizationNational Nature Science Foundation of China ; Doctoral Fund of Ministry of Education of China ; West Light Foundation of The Chinese Academy of Sciences ; Specialized Research Fund for the Doctoral Program of Higher Education
WOS Research AreaEnvironmental Sciences & Ecology ; Engineering
WOS SubjectEcology ; Engineering, Environmental ; Environmental Sciences
WOS IDWOS:000404305300014
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/63071
Collection中国科学院地理科学与资源研究所
Corresponding AuthorChen, Yunming
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Cao, Yang,Chen, Yunming. Ecosystem C:N:P stoichiometry and carbon storage in plantations and a secondary forest on the Loess Plateau, China[J]. ECOLOGICAL ENGINEERING,2017,105:125-132.
APA Cao, Yang,&Chen, Yunming.(2017).Ecosystem C:N:P stoichiometry and carbon storage in plantations and a secondary forest on the Loess Plateau, China.ECOLOGICAL ENGINEERING,105,125-132.
MLA Cao, Yang,et al."Ecosystem C:N:P stoichiometry and carbon storage in plantations and a secondary forest on the Loess Plateau, China".ECOLOGICAL ENGINEERING 105(2017):125-132.
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