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

文献类型：期刊论文

作者Zhang, Guangshuai3,5; Yu, Xiubo3,6; Gao, Yang3,6; Li, Ya3,7; Zhang, Quanjun2,3; Liu, Yu6; Rao, Didi4; Lin, Yongming1; Xia, Shaoxia6
刊名JOURNAL OF FRESHWATER ECOLOGY
出版日期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
DOI10.1080/02705060.2018.1459324
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.
WOS关键词MICROBIAL COMMUNITY COMPOSITION ; DIFFERENT NUTRIENT CONDITIONS ; LEAF-LITTER DECOMPOSITION ; PLANT LITTER ; SOIL ; FOREST ; CARBON ; GRASSLAND ; SPHAGNUM ; GRADIENT
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研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:000430860400002
出版者TAYLOR & FRANCIS INC
资助机构National Natural Science Foundation of China ; local cooperation project - Research and Development of Aquatic Ecological Comprehensive Model of Poyang Lake
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.Fujian Agr & Forestry Univ, Coll Forestry, Fuzhou, Fujian, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Res Wetland Nutrient Cycle, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
4.Jiangxi Normal Univ, Coll Geog & Environm, Res Wetland Landscape, Nanchang, Jiangxi, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Res Wetland Monitoring & Biogeochem, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Res Wetland Plant, Beijing, 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.

入库方式： OAI收割

来源：地理科学与资源研究所

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