黄河三角洲溶解有机物的光谱特征及驱动因素

IF 3 2区 环境科学与生态学 Q2 ECOLOGY
Yuan Cui, Fang-Li Luo, Ming-xiang Zhang, Fei-Hai Yu
{"title":"黄河三角洲溶解有机物的光谱特征及驱动因素","authors":"Yuan Cui, Fang-Li Luo, Ming-xiang Zhang, Fei-Hai Yu","doi":"10.1093/jpe/rtac037","DOIUrl":null,"url":null,"abstract":"\n River deltas are hot spots of biogeochemical cycling. Understanding sources and driving factors of dissolved organic matter (DOM) in river deltas is important for evaluating the role of river deltas in regulating global carbon flux. In this study, spectroscopic properties of soil DOM were analyzed in both freshwater and tidal areas of the Yellow River Delta. Five fluorescent components of soil DOM (two humic-like DOM, two protein-like DOM, and one possible contaminant) were identified by parallel factor analysis and further confirmed by comparison with an online database. Concentration, spectroscopic properties, and sources of soil DOM and its components differed between freshwater and tidal areas. DOM concentration was much higher in freshwater areas than in tidal areas. In freshwater areas, soil DOM was mainly derived from phytoplankton and microorganisms, while in tidal areas, it was mainly derived from microorganisms and human activities. These differences in DOM between both areas were strongly driven by environmental factors, especially soil carbon (C), nitrogen (N), and its stoichiometric ratio C/N. These explained 80.7% and 69.6% of variations in DOM and CDOM, respectively. In addition, phytoplankton also contributed to soil DOM, CDOM, and fluorescent components C1–C4 as identified by significant positive correlations between them. The results imply that in the Yellow River Delta, both the concentration and composition of soil DOM are strongly driven by soil properties and phytoplankton density.","PeriodicalId":50085,"journal":{"name":"Journal of Plant Ecology","volume":" ","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2022-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Spectroscopic properties and driving factors of dissolved organic matter in the Yellow River Delta\",\"authors\":\"Yuan Cui, Fang-Li Luo, Ming-xiang Zhang, Fei-Hai Yu\",\"doi\":\"10.1093/jpe/rtac037\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"\\n River deltas are hot spots of biogeochemical cycling. Understanding sources and driving factors of dissolved organic matter (DOM) in river deltas is important for evaluating the role of river deltas in regulating global carbon flux. In this study, spectroscopic properties of soil DOM were analyzed in both freshwater and tidal areas of the Yellow River Delta. Five fluorescent components of soil DOM (two humic-like DOM, two protein-like DOM, and one possible contaminant) were identified by parallel factor analysis and further confirmed by comparison with an online database. Concentration, spectroscopic properties, and sources of soil DOM and its components differed between freshwater and tidal areas. DOM concentration was much higher in freshwater areas than in tidal areas. In freshwater areas, soil DOM was mainly derived from phytoplankton and microorganisms, while in tidal areas, it was mainly derived from microorganisms and human activities. These differences in DOM between both areas were strongly driven by environmental factors, especially soil carbon (C), nitrogen (N), and its stoichiometric ratio C/N. These explained 80.7% and 69.6% of variations in DOM and CDOM, respectively. In addition, phytoplankton also contributed to soil DOM, CDOM, and fluorescent components C1–C4 as identified by significant positive correlations between them. The results imply that in the Yellow River Delta, both the concentration and composition of soil DOM are strongly driven by soil properties and phytoplankton density.\",\"PeriodicalId\":50085,\"journal\":{\"name\":\"Journal of Plant Ecology\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2022-03-07\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Plant Ecology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1093/jpe/rtac037\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ECOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Plant Ecology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1093/jpe/rtac037","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ECOLOGY","Score":null,"Total":0}
引用次数: 1

摘要

河流三角洲是生物地球化学循环的热点。了解河流三角洲溶解有机物(DOM)的来源和驱动因素对于评估河流三角洲在调节全球碳通量中的作用至关重要。本研究分析了黄河三角洲淡水和潮间带土壤DOM的光谱特性。通过平行因子分析鉴定了土壤DOM的五种荧光成分(两种类腐殖质DOM、两种类蛋白质DOM和一种可能的污染物),并通过与在线数据库的比较进一步证实了这一点。淡水区和潮汐区土壤DOM及其成分的浓度、光谱特性和来源不同。淡水区的DOM浓度远高于潮汐区。在淡水地区,土壤DOM主要来源于浮游植物和微生物,而在潮汐地区,它主要来源于微生物和人类活动。这两个地区DOM的差异很大程度上是由环境因素驱动的,特别是土壤碳(C)、氮(N)及其化学计量比C/N。这分别解释了DOM和CDOM变化的80.7%和69.6%。此外,浮游植物还对土壤DOM、CDOM和荧光成分C1-C4有贡献,它们之间存在显著的正相关性。结果表明,在黄河三角洲,土壤DOM的浓度和组成都受到土壤性质和浮游植物密度的强烈驱动。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spectroscopic properties and driving factors of dissolved organic matter in the Yellow River Delta
River deltas are hot spots of biogeochemical cycling. Understanding sources and driving factors of dissolved organic matter (DOM) in river deltas is important for evaluating the role of river deltas in regulating global carbon flux. In this study, spectroscopic properties of soil DOM were analyzed in both freshwater and tidal areas of the Yellow River Delta. Five fluorescent components of soil DOM (two humic-like DOM, two protein-like DOM, and one possible contaminant) were identified by parallel factor analysis and further confirmed by comparison with an online database. Concentration, spectroscopic properties, and sources of soil DOM and its components differed between freshwater and tidal areas. DOM concentration was much higher in freshwater areas than in tidal areas. In freshwater areas, soil DOM was mainly derived from phytoplankton and microorganisms, while in tidal areas, it was mainly derived from microorganisms and human activities. These differences in DOM between both areas were strongly driven by environmental factors, especially soil carbon (C), nitrogen (N), and its stoichiometric ratio C/N. These explained 80.7% and 69.6% of variations in DOM and CDOM, respectively. In addition, phytoplankton also contributed to soil DOM, CDOM, and fluorescent components C1–C4 as identified by significant positive correlations between them. The results imply that in the Yellow River Delta, both the concentration and composition of soil DOM are strongly driven by soil properties and phytoplankton density.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Journal of Plant Ecology
Journal of Plant Ecology 生物-植物科学
CiteScore
4.60
自引率
18.50%
发文量
134
审稿时长
3 months
期刊介绍: Journal of Plant Ecology (JPE) serves as an important medium for ecologists to present research findings and discuss challenging issues in the broad field of plants and their interactions with biotic and abiotic environment. The JPE will cover all aspects of plant ecology, including plant ecophysiology, population ecology, community ecology, ecosystem ecology and landscape ecology as well as conservation ecology, evolutionary ecology, and theoretical ecology.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信