Determining whether an 18/16O technology threshold exists in estimating lake primary productivity and associated metabolism
文献类型：期刊论文
| 作者 | Lu, Yao1,2; Gao, Yang1,2; Jia, Junjie1,2; Wang, Shuoyue1,2; Ha, Xianrui1,2; Li, Zhaoxi1,2 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 155页码:8 |
| ISSN号 | 1470-160X |
| 关键词 | O-18/16 technology Qinghai -Tibet Plateau Method comparison Applicability Salinity |
| DOI | 10.1016/j.ecolind.2023.110956 |
| 通讯作者 | Gao, Yang(gaoyang@igsnrr.ac.cn) |
| 英文摘要 | To determine lake carbon (C) cycling storage, transport, and transformation functions, it is necessary to understand metabolic lacustrine changes and associated drivers, all of which are premised on accurate metabolic estimates. The continuous improvement in conventional metabolic lake methods and the emergence of novel relevant methods in recent years have led to confusion as to their usage. Although O-18/16 technology has recently been more widely used, its applicability remains controversial among researchers. The Qinghai-Tibet Plateau (QTP) is an exceptional location for such experimental studies, primarily due to its many different natural lake types. This study used O-18/16 technology to investigate 19 lakes of different salinity (0.0 similar to 196.0 parts per thousand), area (5.0 similar to 4345.9 km(2)), and altitude grades (2549.9 similar to 4541.8 m) on the QTP to determine their specific metabolism. Results show that O-18/16 technology is not suitable for use for high saline and low dissolved oxygen lakes (i.e., a salinity level greater than 35 parts per thousand and a dissolved oxygen level < 4 mg L-1). Under low dissolved oxygen conditions caused by high salinity, alterations in isotopic fractionation will cause O-18/16 technology to fail. These findings can be used as a reference for estimating lake metabolism as well as researching nutrient cycling while also promoting metabolic estimation method improvements. |
| WOS关键词 | TRIPLE-ISOTOPE COMPOSITION ; DISSOLVED-OXYGEN ; BIOGEOCHEMICAL CONTROLS ; ECOSYSTEM METABOLISM ; STABLE-ISOTOPES ; WATER CO2 ; CARBON ; O-2 ; MODEL ; RATES |
| 资助项目 | National Nature Science Foundation of China[42225103] ; National Nature Science Foundation of China[42141015] ; Second Tibetan Plateau Scientific Expedition and Research Program[2019QZKK060602] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001083948100001 |
| 资助机构 | National Nature Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/199187]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Gao, Yang |
| 作者单位 | 1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, Yao,Gao, Yang,Jia, Junjie,et al. Determining whether an 18/16O technology threshold exists in estimating lake primary productivity and associated metabolism[J]. ECOLOGICAL INDICATORS,2023,155:8. |
| APA | Lu, Yao,Gao, Yang,Jia, Junjie,Wang, Shuoyue,Ha, Xianrui,&Li, Zhaoxi.(2023).Determining whether an 18/16O technology threshold exists in estimating lake primary productivity and associated metabolism.ECOLOGICAL INDICATORS,155,8. |
| MLA | Lu, Yao,et al."Determining whether an 18/16O technology threshold exists in estimating lake primary productivity and associated metabolism".ECOLOGICAL INDICATORS 155(2023):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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