In our ‘Subject Diaries’ sequence, The Utilized Ecologist is sharing tales from a variety of various fieldwork experiences. On this publish Guilherme Castro shares his analysis on utilizing distant sensing to raised perceive how one can restore landscapes.
In regards to the Writer
Guilherme Castro, he/him
Affiliation: Royal Holloway College of London & Royal Botanic Gardens Kew
Ecology pursuits: Landscapes, restoration, distant sensing
Overview of fieldwork
I’m a PhD pupil at Royal Holloway College of London and Royal Botanic Gardens Kew researching methods to raised restore landscapes. I take advantage of distant sensing know-how to grasp how the structural complexity of vegetation influences ecological processes throughout completely different land administration practices – from rewilding and pure colonization to wooden pastures and historic woodlands.
To review how these completely different land administration methods affect ecosystem functioning, I fly drones to gather high-resolution imagery. As ecosystems change with the seasons, I’m gathering information at completely different instances of the 12 months to evaluate how these modifications look from above. The completely different cameras connected to the drone measure how a lot gentle is being mirrored by the vegetation in numerous bandwidths. This enables me to calculate indices which are good indicators for particular ecological processes, for instance the Normalized Distinction Vegetation Index (NDVI) as a proxy for main productiveness.
Along with the drone work, I’ve been additionally gathering structural information utilizing LiDAR know-how. The terrestrial 3D scanner makes use of lasers to detect objects and permits to construct extremely correct 3D fashions of the vegetation construction. After gathering the information, I can then calculate completely different metrics (e.g. vegetation peak) to completely characterize the structural profiles of every web site.
That is when collaborating with companions turns into essential to unpick traits and patterns. My PhD undertaking brings collectively a number of companions throughout Sussex in Southern UK, together with Wakehurst Kew, Sussex Wildlife Belief, Nymans Nationwide Belief, Knepp Wilding, in addition to farmers and personal landowners. With their huge information of how the examine areas are and have been managed over time, I can higher perceive what the information is telling me. On the identical time, this proof is effectively obtained by all companions because it offers new insights to the administration and monitoring of their websites.
Why is that this an vital undertaking?
We all know that structural complexity is vital for biodiversity in vast number of methods, for instance by offering completely different habitat varieties to completely different species. But it surely additionally performs a serious position in how ecosystems perform and the providers they supply, resembling temperature regulation and air pollution mitigation. Within the UK context, we see huge landscapes with simplified structural complexity, which brings direct penalties for biodiversity, whereas additionally decreasing the flexibility of ecosystems to withstand and adapt to future local weather eventualities. Due to this fact, we have to perceive extra deeply how structural complexity shapes ecosystem functioning, particularly on a restoration perspective.
Spending a lot time protecting completely different websites round Sussex has broadened my understanding of the significance of implementing completely different restoration and administration methods at a panorama scale. If we’re to scale up restoration efforts, it’s crucial to grasp which contributions the completely different land administration practices present from a structural and purposeful perspective. Such proof may help us to stability completely different methods and prioritize areas to implement restoration actions for efficient nature restoration.
Subsequent steps
Whereas we already know lots about restoring nature at scale, there are nonetheless nice uncertainties on how and in what measure completely different methods ought to be applied. I’m hoping to maintain contributing with new proof to assist implementation claims and assist design efficient methods to place nature on a path of restoration. Not least, I’ve been delving into the world of distant sensing utilized to the examine of ecosystems and landscapes. It has been an thrilling and rewarding journey and has made me a extra resourceful ecologist. As the top of my fieldwork marketing campaign approaches, I’m now wanting ahead to analysing information, producing helpful outputs and sharing it with the world.
The place can we discover extra data?
A weblog publish about my PhD might be discovered right here.
Uncover extra posts from our Fieldwork Diaries weblog sequence right here.
