A review of estimation methods for aboveground biomass in grasslands using UAV

COG Bazzo, B Kamali, C Hütt, G Bareth, T Gaiser - Remote Sensing, 2023‏ - mdpi.com
Grasslands are one of the world's largest ecosystems, accounting for 30% of total terrestrial
biomass. Considering that aboveground biomass (AGB) is one of the most essential …

Reference measurements in develo** UAV systems for detecting pests, weeds, and diseases

J Kaivosoja, J Hautsalo, J Heikkinen, L Hiltunen… - Remote sensing, 2021‏ - mdpi.com
The development of UAV (unmanned aerial vehicle) imaging technologies for precision
farming applications is rapid, and new studies are published frequently. In cases where …

Bundle adjustment with motion constraints for uncalibrated multi-camera systems at the ground level

D Huang, R Qin, M Elhashash - ISPRS Journal of Photogrammetry and …, 2024‏ - Elsevier
Multi-camera systems for structure from motion (SfM) are widely deployed in many map**
applications. Existing solutions assume known rig calibration, synchronized frames among …

[HTML][HTML] Biomass estimation of pasture plots with multitemporal UAV-based photogrammetric surveys

I Sinde-González, M Gil-Docampo… - International Journal of …, 2021‏ - Elsevier
Pastures account for more than 56% of the total agricultural area of Ecuador and constitute
the main food source for livestock. Hence, the agile, affordable, and reliable quantification of …

[HTML][HTML] Estimation of the Carrying Capacity and Relative Stocking Density of Mongolian grasslands under various adaptation scenarios

Q Wang, T Okadera, T Nakayama, O Batkhishig… - Science of the Total …, 2024‏ - Elsevier
Mongolia's vast grasslands, crucial for both environmental and economic stability, are
currently facing challenges due to overgrazing, climate change, and land-use changes …

[HTML][HTML] Spatial water table level modelling with multi-sensor unmanned aerial vehicle data in boreal aapa mires

A Isoaho, L Ikkala, H Marttila, J Hjort, T Kumpula… - Remote Sensing …, 2023‏ - Elsevier
Peatlands have been degrading globally, which is increasing pressure on restoration
measures and monitoring. New monitoring methods are needed because traditional …

[HTML][HTML] Herbage mass, N concentration, and N uptake of temperate grasslands can adequately be estimated from UAV-based image data using machine learning

U Lussem, A Bolten, I Kleppert, J Jasper, ML Gnyp… - Remote Sensing, 2022‏ - mdpi.com
Precise and timely information on biomass yield and nitrogen uptake in intensively managed
grasslands are essential for sustainable management decisions. Imaging sensors mounted …

High-precision estimation of grass quality and quantity using UAS-based VNIR and SWIR hyperspectral cameras and machine learning

RA Oliveira, R Näsi, P Korhonen, A Mustonen… - Precision …, 2024‏ - Springer
Miniaturised hyperspectral cameras are becoming more easily accessible and smaller,
enabling efficient monitoring of agricultural crops using unoccupied aerial systems (UAS) …

Investigating the potential of a newly developed uav-mounted vnir/swir imaging system for monitoring crop traits—a case study for winter wheat

A Jenal, H Hüging, HE Ahrends, A Bolten, J Bongartz… - Remote Sensing, 2021‏ - mdpi.com
UAV-based multispectral multi-camera systems are widely used in scientific research for non-
destructive crop traits estimation to optimize agricultural management decisions. These …

[HTML][HTML] Quantification of grassland biomass and nitrogen content through UAV hyperspectral imagery—active sample selection for model transfer

MHD Franceschini, R Becker, F Wichern, L Kooistra - Drones, 2022‏ - mdpi.com
Accurate retrieval of grassland traits is important to support management of pasture
production and phenoty** studies. In general, conventional methods used to measure …