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Role of carbon and nutrient exports from different land uses in the aquatic carbon sequestration and eutrophication process

文献类型：期刊论文

作者Bao, Qian1,2,3; Liu, Zaihua1,3,4; Zhao, Min1,3; Hu, Yundi1,3; Li, Dong1,2; Han, Cuihong1,2; Zeng, Cheng1,3; Chen, Bo1,3; Wei, Yu1,3; Ma, Song1,2
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2022-03-20
卷号813页码:12
ISSN号0048-9697
关键词Land uses Phytoplankton Submerged plants C-N-P limitation Autochthonous OC sequestration Mitigating eutrophication
DOI10.1016/j.scitotenv.2021.151917
通讯作者Liu, Zaihua(liuzaihua@vip.gyig.ac.cn)
英文摘要The hydrochemical features affected by differing land uses play a key role in regulating both the primary production of aquatic photosynthetic organisms and the formation of autochthonous organic carbon (AOC); this impacts eutrophication and the global carbon cyde. In shallow water environments where phytoplankton and submerged plants coexist, the C-N-P limitations on the primary production of these aquatic organisms, and the mechanisms by which they promote the formation of AOC are poorly understood. In this study, over the hydrological year September 2018 to August 2019, a large-scale field simulation experiment at the Shawan Karst Test Site (SW China) with various types of land use was systematically conducted to investigate the C-N-P limitations on the primary production of phytoplankton and submerged plants. The results indicate that (1) phytoplankton are co-limited by nitrogen (N) and phosphorus (P) but with the N more important, while submerged plants are limited by carbon (C); (2) Chlorophyta and Bacillariophyta display a stronger competitive advantage than Cyanophyta in aqueous environments with high C but low N-P; (3) there is a seasonal difference in the contribution of phytoplankton and submerged plants to the formation of AOC, however, throughout the year, the contributions of phytoplankton (27%) and submerged plants biomass (28%) to AOC concentrations in the water were similar, combinedly accounting for approximately 17% of the formed AOC. It is concluded that natural restoration of vegetation, or injecting CO2 into water, which results in higher C but lower N-P loadings, may simultaneously help to mitigate eutrophication (with changes in biological structure and species) and increase C sequestration in surface waters. (C) 2021 Elsevier B.V. All rights reserved.
WOS关键词DISSOLVED INORGANIC CARBON ; KARST TEST-SITE ; LAKE EUTROPHICATION ; ORGANIC-MATTER ; CONCENTRATING MECHANISMS ; SUBMERGED MACROPHYTES ; PHYTOPLANKTON ; CO2 ; STOICHIOMETRY ; LIMITATION
资助项目National Natural Science Foundation of China[42130501] ; National Natural Science Foundation of China[42177248] ; National Natural Science Foundation of China[U1612441] ; National Natural Science Foundation of China[41921004] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB40020000] ; Natural Science Foundation of Guizhou Province[[2020] 1Y412] ; Youth Science and Technology Talent Growth Program of Guizhou Provincial Education Department[[2021] 137] ; Guizhou Science and Technology Department Fund[[2021] 456]
WOS研究方向Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:000767233400005
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Natural Science Foundation of Guizhou Province ; Youth Science and Technology Talent Growth Program of Guizhou Provincial Education Department ; Guizhou Science and Technology Department Fund
源URL[http://ir.igsnrr.ac.cn/handle/311030/171841]  
专题中国科学院地理科学与资源研究所
通讯作者Liu, Zaihua
作者单位1.Chinese Acad Sci, State Key Lab Environm Geochem, Inst Geochem, Guiyang 550081, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Chinese Ecosyst Res Network, Puding Karst Ecosyst Res Stn, Puding 562100, Guizhou, Peoples R China
4.CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China
5.China Univ Geosci Beijing, Sch Water Resources & Environm, Beijing 100083, Peoples R China
6.Guizhou Inst Technol, Resources & Environm Engn, Guiyang 550008, Guizhou, Peoples R China
推荐引用方式
GB/T 7714		 Bao, Qian,Liu, Zaihua,Zhao, Min,et al. Role of carbon and nutrient exports from different land uses in the aquatic carbon sequestration and eutrophication process[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2022,813:12.
APA Bao, Qian.,Liu, Zaihua.,Zhao, Min.,Hu, Yundi.,Li, Dong.,...&Zhang, Yi.(2022).Role of carbon and nutrient exports from different land uses in the aquatic carbon sequestration and eutrophication process.SCIENCE OF THE TOTAL ENVIRONMENT,813,12.
MLA Bao, Qian,et al."Role of carbon and nutrient exports from different land uses in the aquatic carbon sequestration and eutrophication process".SCIENCE OF THE TOTAL ENVIRONMENT 813(2022):12.

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来源：地理科学与资源研究所

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