SwePub
Sök i LIBRIS databas

  Utökad sökning

id:"swepub:oai:DiVA.org:uu-480008"
 

Sökning: id:"swepub:oai:DiVA.org:uu-480008" > Unraveling the Role...

  • Zhou, YongqiangChinese Acad Sci, Taihu Lab Lake Ecosyst Res, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China. (författare)

Unraveling the Role of Anthropogenic and Natural Drivers in Shaping the Molecular Composition and Biolability of Dissolved Organic Matter in Non-pristine Lakes

  • Artikel/kapitelEngelska2022

Förlag, utgivningsår, omfång ...

  • 2022-03-08
  • American Chemical Society (ACS),2022
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-480008
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-480008URI
  • https://doi.org/10.1021/acs.est.1c08003DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • Lakes receive and actively process terrestrial dissolved organic matter (DOM) and play an important role in the global carbon cycle. Urbanization results in elevated inputs of nonpoint-source DOM to headwater streams. Retention of water in lakes allows time for alteration and transformation of the chemical composition of DOM by microbes and UV radiation. Yet, it remains unclear how anthropogenic and natural drivers impact the composition and biolability of DOM in non-pristine lakes. We used optical spectroscopy, Fourier transform ion cyclotron mass spectrometry, stable isotopic measurements, and laboratory bioincubations to investigate the chemical composition and biolability of DOM across two large data sets of lakes associated with a large gradient of urbanization in lowland Eastern China, encompassing a total of 99 lakes. We found that increased urban land use, gross domestic products, and population density in the catchment were associated with an elevated trophic level index, higher chlorophyll-a, higher bacterial abundance, and a higher amount of organic carbon with proportionally higher contribution of aliphatic and peptide-like DOM fractions, which can be highly biolabile. Catchment areas, water depth, lake area: catchment area, gross primary productivity, delta O-18-H2O, and bacterial abundance, however, had comparatively little linkage with DOM composition and biolability. Urban land use is currently intensifying in many developing countries, and our results anticipate an increase in the level of biolabile aliphatic DOM from nonpoint sources and accelerated carbon cycling in lake ecosystems in such regions.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Zhou, LeiChinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China. (författare)
  • Zhang, YunlinChinese Acad Sci, Taihu Lab Lake Ecosyst Res, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China. (författare)
  • Zhu, GuangweiChinese Acad Sci, Taihu Lab Lake Ecosyst Res, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China. (författare)
  • Qin, BoqiangChinese Acad Sci, Taihu Lab Lake Ecosyst Res, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China. (författare)
  • Jang, Kyoung-SoonKorea Basic Sci Inst, Biochem Anal Grp, Cheongju 28119, South Korea. (författare)
  • Spencer, Robert G. M.Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA. (författare)
  • Kothawala, DollyUppsala universitet,Limnologi(Swepub:uu)dolko444 (författare)
  • Jeppesen, ErikAarhus Univ, Dept Biosci, DK-8600 Silkeborg, Denmark.;Aarhus Univ, Ctr Water Technol WATEC, DK-8600 Silkeborg, Denmark.;Danish Ctr Educ & Res, Beijing 100190, Peoples R China.;Middle East Tech Univ, Dept Biol Sci, Limnol Lab, TR-06800 Ankara, Turkey.;Middle East Tech Univ, Ctr Ecosyst Res & Implementat, TR-06800 Ankara, Turkey.;Middle East Tech Univ, Inst Marine Sci, TR-33731 Mersin, Turkey. (författare)
  • Brookes, Justin D.Univ Adelaide, Water Res Ctr, Sch Biol Sci, Adelaide, SA 5005, Australia. (författare)
  • Wu, FengchangChinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China. (författare)
  • Chinese Acad Sci, Taihu Lab Lake Ecosyst Res, State Key Lab Lake Sci & Environm, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Peoples R China. (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Environmental Science and Technology: American Chemical Society (ACS)56:7, s. 4655-46640013-936X1520-5851

Internetlänk

Hitta via bibliotek

Till lärosätets databas

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy