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Estimating the biomass of Carex cinerascens (Cyperaceae) in floodplain wetlands in Poyang Lake, China
Li, Ya1,2; Yu, Xiubo1,2; Guo, Qun1; Liu, Yu1; Xia, Shaoxia1; Zhang, Guangshuai1,2; Zhang, Quanjun1,2; Duan, Houlang1,2; Zhao, Liang1
2019
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
ISSN0270-5060
Volume34Issue:1Pages:379-394
Corresponding AuthorYu, Xiubo()
AbstractThe estimation of wetland plant biomass is key to understanding the dynamic changes of the structure and functions of wetland ecosystems. Relatively few studies on the spatiotemporal dynamics of wetland plant biomass have been conducted because of the difficulties in obtaining detailed and accurate data. Carex cinerascens meadows are important patches in Poyang Lake in eastern China and provide significant food resources and habitats for wintering waterbirds, particularly geese. We proposed a method to estimate the biomass of C. cinerascens in a subsection of Poyang Lake, i.e. Baisha Lake, employing the digital elevation model and water level gradient of the lake combined with the logistic regression model based on data from field measurements in different elevations. We obtained four C. cinerascens biomass estimation models based on four elevations divided. The maximum biomass decreased with decreasing elevation. Meanwhile, the maximum growth rate initially increased and subsequently decreased. The biomass of C. cinerascens per unit area ranged from 0.10 to 0.58 kg/m(2) in the autumn and winter. Significant differences in the growth process of C. cinerascens were observed in different water level gradients. The total biomass of C. cinerascens in Baisha Lake changed following an S-shaped curve and reached 221, 503, and 615 t in the middle of October, November, and December, respectively. The research results can be used to forecast the biomass of C. cinerascens under different hydrological conditions in Poyang Lake, and to provide wetland plant biomass estimation methods for other similar regions.
KeywordBiomass estimation logistic model water level gradient Poyang Lake
DOI10.1080/02705060.2018.1531792
WOS KeywordWATER-LEVEL FLUCTUATIONS ; DONGTING LAKE ; VEGETATION ; GROWTH ; IMPOUNDMENT ; COMMUNITIES ; BREVICUSPIS ; ELEVATION ; RESPONSES ; FLOW
Indexed BySCI
Language英语
Funding ProjectResearch and Development of Composite Model in Poyang Lake Water Ecology ; National Natural Science Foundation of China[41471088]
Funding OrganizationResearch and Development of Composite Model in Poyang Lake Water Ecology ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Limnology
WOS IDWOS:000469964900001
PublisherTAYLOR & FRANCIS INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/59165
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYu, Xiubo
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, 11A,Datun Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Li, Ya,Yu, Xiubo,Guo, Qun,et al. Estimating the biomass of Carex cinerascens (Cyperaceae) in floodplain wetlands in Poyang Lake, China[J]. JOURNAL OF FRESHWATER ECOLOGY,2019,34(1):379-394.
APA Li, Ya.,Yu, Xiubo.,Guo, Qun.,Liu, Yu.,Xia, Shaoxia.,...&Zhao, Liang.(2019).Estimating the biomass of Carex cinerascens (Cyperaceae) in floodplain wetlands in Poyang Lake, China.JOURNAL OF FRESHWATER ECOLOGY,34(1),379-394.
MLA Li, Ya,et al."Estimating the biomass of Carex cinerascens (Cyperaceae) in floodplain wetlands in Poyang Lake, China".JOURNAL OF FRESHWATER ECOLOGY 34.1(2019):379-394.
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