Forests are a key component of the global carbon cycle, and research is needed into the effects of human-driven and natural processes on their carbon pools. Airborne laser scanning (ALS) produces detailed 3D maps of forest canopy structure from which aboveground carbon density can be estimated. Working with a ALS dataset collected over the 8049-km2 WellingtonContinue reading “Airborne laser scanning of natural forests in New Zealand reveals the influences of wind on forest carbon”
Project Tag Archives
Enhancing of accuracy assessment for forest above-ground biomass estimates obtained from remote sensing via hypothesis testing and overfitting evaluation
The evaluation of accuracy is essential for assuring the reliability of ecological models. Usually, the accuracy of above-ground biomass (AGB) predictions obtained from remote sensing is assessed by the mean differences (MD), the root mean squared differences (RMSD), and the coefficient of determination (R2) between observed and predicted values. In this article we propose aContinue reading “Enhancing of accuracy assessment for forest above-ground biomass estimates obtained from remote sensing via hypothesis testing and overfitting evaluation”
Denial of long-term issues with agriculture on tropical peatlands will have devastating consequences
A letter denouncing the practice of ignoring the issues agriculture on tropical peatlands will cause in the future. WIJEDASA et al. 2017 PDF
Nitrous oxide emissions from sugarcane fields in the Brazilian Cerrado
We quantified N2O fluxes from a sugarcane experiment in the Brazilian Cerrado over an entire year, comparing the magnitude of response to different fertilizer treatments: mineral nitrogen (N), a liquid residue from bioethanol distillation known as vinasse (V) and a combination of both (NV), on irrigated and nonirrigated plots. Silva et al. 2017 PDF
Forest soils in France are sequestering substantial amounts of carbon
The aim of this study was to assess whether French forest soils are sources or sinks of carbon and to quantify changes in soil organic carbon (SOC) stocks over time by resampling soil in long-term forest monitoring plots. Jonard, M.; Nicolas, M.; Coomes, D.A.; Caignet, I.; Saenger, A.; Ponette, Q. 2017 PDF
A graph cut approach to 3D tree delineation, using integrated airborne LiDAR and hyperspectral imagery
We develop a 3D tree delineation method which uses graph cut to delineate trees from the full 3D LiDAR point cloud, and also makes use of any optical imagery available (hyper-spectral imagery in our case). Lee, J.; Coomes, D.A.; Schönlieb, C.; Cai, X.; Lellmann, J.; Dalponte, M.; Malhi, Y.; Butt, N.; Morecroft, M. 2017 PDF
Area-based vs tree-centric approaches to mapping forest carbon in Southeast Asian forests from airborne laser scanning data
This paper compares area-based and tree-centric models for estimating ACD in lowland old-growth forests in Sabah, Malaysia. These forests are challenging to map because of their immense height. Coomes et al. 2017 PDF
Advances in Microclimate Ecology Arising from Remote Sensing
This paper reviews the use of remote sensing in detecting microclimates in forests. We look into how we could combine remotely sensed data along with data from weather stations to map microclimates in forests in great detail, highlighting some opportunities they provide for ecology, conservation and climate change research. Zellweger, F.; De Frenne, P.; Lenoir, J.; Rocchini D.; CoomesContinue reading “Advances in Microclimate Ecology Arising from Remote Sensing”
Post-volcanic forest succession on New Zealand’s North Island: an appraisal from long-term plot data
Overview of how environmental factors characteristic of volcanism have influenced forest succession on long term plots. Smale, M.C.; Coomes, D.A.; Parfitt, R.L.; Peltzer, D.A.; Mason, N.W.H.; Fitzgerald, N.B. 2016 PDF
Positive biodiversity-productivity relationship predominant in global forests
We explored the effect of tree species richness on tree volume productivity at the global scale using repeated forest inventories from 777,126 permanent sample plots in 44 countries containing more than 30 million trees from 8737 species spanning most of the global terrestrial biomes. Liang et al. 2016 PDF
