How do droppings of wintering waterbird accelerate decomposition of Carex cinerascens Kukenth litter in seasonal floodplain Ramsar Site?

doi:10.1007/s11273-021-09804-w

	How do droppings of wintering waterbird accelerate decomposition of Carex cinerascens Kukenth litter in seasonal floodplain Ramsar Site?
	Zhang, Quanjun 1,4; Zhang, Guangshuai 2,3; Yu, Xiubo 1,4; Liu, Yu 4; Xia, Shaoxia 4; Meng, Zhujian 4; Xu, Ce 1,4
刊名	WETLANDS ECOLOGY AND MANAGEMENT
	2021-05-07
页码	17
关键词	Poyang Lake Wetlands Nutrient cycling Migratory birds Freshwater ecosystem Cellulose Lignin
ISSN号	0923-4861
DOI	10.1007/s11273-021-09804-w
通讯作者	Yu, Xiubo(yuxb@igsnrr.ac.cn)
英文摘要	The decomposition of wetland plant litter is pivotal in the functioning of wetland ecosystems in terms of organic matter mineralization progress and nutrient cycling. Aiming to investigate the effects of the droppings of wintering herbivorous waterbirds on the decomposition of Carex cinerascens Kukenth litter a newly designated Ramsar Site, decomposition patterns of three types of samples were characterized and compared by waterbird dropping addition and litterbag in situ experiment. The three types of samples are OCL (only C. cinerascens litter), OWD (only waterbird droppings) and CMD (C. cinerascens litter mixed with waterbird droppings), respectively. A total of 105 decomposition bags were placed and the experiment lasted 150 days. The results showed that the average decay rate of C. cinerascens cellulose increased by approximately 32.12% by the addition of bird droppings, while the C. cinerascens lignin decay rate increased by approximately 83.05%. And the release of carbon, nitrogen and phosphorous of C. cinerascens increased by approximately 18.3%, 61.09%, and 66.71%, respectively. We concluded that the addition of waterbird droppings significantly accelerated the decomposition of C. cinerascens litter and the release of carbon, nitrogen, and phosphorus. We have a preliminary deduction that waterbird droppings (1) altered the original stoichiometric ratio of the litter, (2) increased the available nutrient content, (3) increased the colonization ability of the microorganisms, and (4) stimulated the production of a series of extracellular degradation enzymes. This study provides a thinking that the important role of waterbirds should be given full attention in wetland restoration planning and management.
资助项目	National Natural Science Foundation of China[41971133] ; National Natural Science Foundation of China[41701212] ; National Natural Science Foundation of China[41471088] ; provincial cooperation project-Research and Development of Aquatic Ecological Comprehensive Model of Poyang Lake Wetland[JXPJB20160101]
WOS关键词	LEAF-LITTER ; NUTRIENT DYNAMICS ; CELLULOSE DEGRADATION ; LIGNIN DEGRADATION ; NITROGEN DYNAMICS ; PLANT LITTER ; WETLANDS ; PHOSPHORUS ; CARBON ; VEGETATION
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000648195100001
资助机构	National Natural Science Foundation of China ; provincial cooperation project-Research and Development of Aquatic Ecological Comprehensive Model of Poyang Lake Wetland
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161576]
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China 3.State Ocean Adm Peoples Republ China, Key Lab Sea Field Management Technol, Dalian 116023, Peoples R China 4.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosystem Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Quanjun,Zhang, Guangshuai,Yu, Xiubo,et al. How do droppings of wintering waterbird accelerate decomposition of Carex cinerascens Kukenth litter in seasonal floodplain Ramsar Site?[J]. WETLANDS ECOLOGY AND MANAGEMENT,2021:17.
APA	Zhang, Quanjun.,Zhang, Guangshuai.,Yu, Xiubo.,Liu, Yu.,Xia, Shaoxia.,...&Xu, Ce.(2021).How do droppings of wintering waterbird accelerate decomposition of Carex cinerascens Kukenth litter in seasonal floodplain Ramsar Site?.WETLANDS ECOLOGY AND MANAGEMENT,17.
MLA	Zhang, Quanjun,et al."How do droppings of wintering waterbird accelerate decomposition of Carex cinerascens Kukenth litter in seasonal floodplain Ramsar Site?".WETLANDS ECOLOGY AND MANAGEMENT (2021):17.