Thursday, 11 February 2021

Hot off the 'presses' (or whatever the online equiv is - Icelandic server farm?)

Having been back in the field again at Wytham late last year (those were the days eh?), despite the odd covid-related hiccup (we're all getting sick of those, right :-/) it's always good to see work coming out in various papers. This is particularly true at the moment when it's easy to lose sight of the sunny uplands ahead. 

So I'm really thankful (& lucky!) to have some great colleagues & collaborators who are taking our work forward. We had a paper in Nov 2020 in Scientific Reports describing our redwood work, with Laura Duncanson, John Armston, Andy, Phil and myself. We show that the allometric models seem to underestimate redwood biomass significantly, while the TLS agrees really closely with the amazing crown mapping work of Steve Sillett. That paper got quite a bit of press, not least for Phil's beautiful image of the redwood 'usual suspects' lineup.

figure1
From Disney et al. (2020) https://doi.org/10.1038/s41598-020-73733-6

One of the best things about this, was the Laura's picture appeared in the Times, and our work was immortalised in comic form by the amazing Naomi Volain. That's a win! It was also covered in the Jan 2021 issue of Scientific American, a piece by Katherine Kornei.

Our long-term collaboration with Kim Calders and the Ghent CAVElab team resulted in Kim's horizon scan view of TLS in ecology, which was a great outcome of the meeting in Ghent in 2018, and summarises a whole range of work from TLS groups worldwide. It also includes another one of Phil's cool images, this time of our local Hardy Tree in Old Pancras churchyard.

Fig. 3
From Calders et al. (2020) RSE.

A really important piece of work that just came out was Andy's paper on the harvesting work we did at Caxuianã in Brazilian Amazon. This paper shows three important things: i) TLS biomass agrees really well with harvest measurements, even for large tropical trees with leaves on; ii) there is unexpectedly large mass in the crowns, which may explain differences with allometry; and iii) wood density varies a *lot* - not that that's news, but still! Again, this was a great collaboration with Matheus (as part of his PhD), Patrick Meir and Ingrid Coughlin at ANU Canberra, Lucy Rowland in Exeter, and Lola da Costa at Universidade Federal do Pará Belem. This is a really important bit of work in showing how TLS should be used in cal/val and for testing allometry.
Figure 3.
From Burt et al. (2021) Royal Soc. Open Science.

Onwards and upwards, and here's to more trees in 2021.