Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain

doi:10.1080/02705060.2018.1459324

	Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain
	Zhang, Guangshuai 1,5; Yu, Xiubo 2,5; Gao, Yang 2,5; Li, Ya 3,5; Zhang, Quanjun 4,5; Liu, Yu 2; Rao, Didi 6; Lin, Yongming 7; Xia, Shaoxia 2
刊名	JOURNAL OF FRESHWATER ECOLOGY
	2018-04-24
卷号	33 期号:1 页码:311-325
关键词	Decay rate path model lignin degradation cellulose degradation Poyang Lake Wetland simple exponential model
ISSN号	0270-5060
DOI	10.1080/02705060.2018.1459324
通讯作者	Yu, Xiubo(yuxb@igsnrr.ac.cn)
英文摘要	Water table affects litter decomposition in wetlands, but its effects on the degradation of cellulose and lignin are poorly understood. We performed a decomposition experiment in Poyang Lake Wetland, to determine how water table affected the degradation of cellulose and lignin. After 60days of decomposition at a site with a relatively highly water table, 46.19% of initial cellulose and 41.95% of initial lignin remained. Decay rates of both cellulose and lignin increased as the depth of the water table increased. Principle component analysis showed that the decay rates of cellulose and lignin increased with increasing soil pH, but decreased with increasing contents of clay and fungi: bacteria ratio. The path model accounted for 66% and 79% of the variation in cellulose and lignin decay rates, respectively, and considered the effects of interactions between the water table and related factors. The cellulose decay rate was affected by the water table with a direct coefficient of 0.47, and an indirect coefficient of 0.65, but the lignin decay rate was indirectly affected by water table (coefficient, 1.25) and directly affected by soil property (coefficient, 0.67). Thus, the water table affected the decomposition of cellulose and lignin via different mechanisms.
资助项目	National Natural Science Foundation of China[41471088] ; local cooperation project - Research and Development of Aquatic Ecological Comprehensive Model of Poyang Lake[JXPJB20160101]
WOS关键词	MICROBIAL COMMUNITY COMPOSITION ; DIFFERENT NUTRIENT CONDITIONS ; LEAF-LITTER DECOMPOSITION ; PLANT LITTER ; SOIL ; FOREST ; CARBON ; GRASSLAND ; SPHAGNUM ; GRADIENT
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:000430860400002
资助机构	National Natural Science Foundation of China ; local cooperation project - Research and Development of Aquatic Ecological Comprehensive Model of Poyang Lake
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/54993]
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, Res Wetland Monitoring & Biogeochem, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Res Wetland Plant, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Res Wetland Nutrient Cycle, Beijing, Peoples R China 5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 6.Jiangxi Normal Univ, Coll Geog & Environm, Res Wetland Landscape, Nanchang, Jiangxi, Peoples R China 7.Fujian Agr & Forestry Univ, Coll Forestry, Fuzhou, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Guangshuai,Yu, Xiubo,Gao, Yang,et al. Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain[J]. JOURNAL OF FRESHWATER ECOLOGY,2018,33(1):311-325.
APA	Zhang, Guangshuai.,Yu, Xiubo.,Gao, Yang.,Li, Ya.,Zhang, Quanjun.,...&Xia, Shaoxia.(2018).Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain.JOURNAL OF FRESHWATER ECOLOGY,33(1),311-325.
MLA	Zhang, Guangshuai,et al."Effects of water table on cellulose and lignin degradation of Carex cinerascens in a large seasonal floodplain".JOURNAL OF FRESHWATER ECOLOGY 33.1(2018):311-325.