Estimating the biomass of Carex cinerascens (Cyperaceae) in floodplain wetlands in Poyang Lake, China

doi:10.1080/02705060.2018.1531792

	Estimating the biomass of Carex cinerascens (Cyperaceae) in floodplain wetlands in Poyang Lake, China
	Li, Ya 1,2; Yu, Xiubo 1,2; Guo, Qun 1; Liu, Yu 1; Xia, Shaoxia 1; Zhang, Guangshuai 1,2; Zhang, Quanjun 1,2; Duan, Houlang 1,2; Zhao, Liang 1
刊名	JOURNAL OF FRESHWATER ECOLOGY
	2019
卷号	34 期号:1 页码:379-394
关键词	Biomass estimation logistic model water level gradient Poyang Lake
ISSN号	0270-5060
DOI	10.1080/02705060.2018.1531792
通讯作者	Yu, Xiubo()
英文摘要	The 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.
资助项目	Research and Development of Composite Model in Poyang Lake Water Ecology ; National Natural Science Foundation of China[41471088]
WOS关键词	WATER-LEVEL FLUCTUATIONS ; DONGTING LAKE ; VEGETATION ; GROWTH ; IMPOUNDMENT ; COMMUNITIES ; BREVICUSPIS ; ELEVATION ; RESPONSES ; FLOW
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种	英语
出版者	TAYLOR & FRANCIS INC
WOS记录号	WOS:000469964900001
资助机构	Research and Development of Composite Model in Poyang Lake Water Ecology ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/59164]
专题	中国科学院地理科学与资源研究所
通讯作者	Yu, Xiubo
作者单位	1.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
推荐引用方式 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.