SwePub
Sök i LIBRIS databas

  Utökad sökning

id:"swepub:oai:DiVA.org:lnu-2104"
 

Sökning: id:"swepub:oai:DiVA.org:lnu-2104" > Oak leaves as aeros...

  • Reinap, AusraHögskolan i Kalmar,Naturvetenskapliga institutionen,Naturresurshushållning (författare)

Oak leaves as aerosol collectors: relationships with wind velocity and particle size distribution. Experimental results and their implications

  • Artikel/kapitelEngelska2009

Förlag, utgivningsår, omfång ...

  • 2009-07-21
  • Springer Science and Business Media LLC,2009
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:lnu-2104
  • https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-2104URI
  • https://doi.org/10.1007/s00468-009-0366-4DOI
  • https://lup.lub.lu.se/record/1519700URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

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

Anmärkningar

  • Advancing the understanding of the aerosol-capture efficiencies of forest components such as leaves and needles, and of the mechanisms that underpin these efficiencies, is essential to the many related issues of forest turnover of nutrients and pollutants. For idealized collectors (such as artificial plates or cylinders) aerosol-mechanics offers a means for calculating capture efficiencies. For living collectors, in particular deciduous leaves, experimental investigations become necessary to assist in formulating the sub-models of capture efficiency that are fundamental to the modelling of fluxes of aerosol-borne substances to forests. We here present wind-tunnel based methods and results for leaves of Quercus robur L. exposed to an aerosol whose mass versus aerodynamic particle size distribution is characterised by a geometric mean aerodynamic particle diameter around 1.2 mu m and a geometric standard deviation around 1.8. With respect to that distribution, and founded on a specially designed leaf wash-off method, we obtained average oak-leaf capture efficiencies ranging from 0.006% of the approaching aerosol mass flux at wind-speed 2 ms(-1) to 0.012% of the flux at wind-speeds 10 ms(-1), respectively. These values can be translated into deposition velocities (V (d) ) for a leaf ensemble with a given leaf area index (LAI). With LAI in the range 2-5 (commonly found in the field) and for wind-speeds 2, 5 and 10 ms(-1), resulting V (d) -values would be 0.02-0.05, 0.05-0.13, and 0.2-0.6 cm/s, respectively. To the extent comparisons are possible, our capture efficiency values are at the low end of the range of values reported by other researchers. The strong wind-speed sensitivity of V (d) has implications for the deposition of aerosol-borne substances to forests for which wind regimes may shift as a result of climatic and land-use changes.

Ämnesord och genrebeteckningar

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

  • Wiman, Bo L. B.Högskolan i Kalmar,Naturvetenskapliga institutionen,Naturresurshushållning(Swepub:lnu)nwibo (författare)
  • Svenningsson, BirgittaLund University,Lunds universitet,Institutionen för naturgeografi och ekosystemvetenskap,Naturvetenskapliga fakulteten,Dept of Physical Geography and Ecosystem Science,Faculty of Science(Swepub:lu)milj-bsv (författare)
  • Gunnarsson, SaraHögskolan i Kalmar,Naturvetenskapliga institutionen(Swepub:lnu)ngusa (författare)
  • Högskolan i KalmarNaturvetenskapliga institutionen (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Trees: Springer Science and Business Media LLC23:6, s. 1263-12740931-18901432-2285

Internetlänk

Hitta via bibliotek

  • Trees (Sök värdpublikationen i LIBRIS)

Till lärosätets databas

Sök utanför SwePub

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