Journal Article

Sino–EU Earth Observation Data to Support the Monitoring and Management of Agricultural Resources

Liu, Linyi, Upreti, Deepak, Pignatti, Stefano, Casa, Raffaele, Yang, Hao, Huang, Wenjiang, Tolomio, Massimo, Pascucci, Simone, Li, Zhenhai, Marzialetti, Pablo, Laneve, Giovanni, Silvestro, Paolo Cosmo, Mzid, Nada, Yang, Guijun

2021

Overview

Novel approaches and algorithms to estimate crop physiological processes from Earth Observation (EO) data are essential to develop more sustainable management practices in agricultural systems. Within this context, this paper presents the results of different research activities carried out within the ESA-MOST Dragon 4 programme. The paper encompasses two research avenues: (a) the retrieval of biophysical variables of crops and yield prediction; and (b) food security related to different crop management strategies. Concerning the retrieval of variables, results show that LAI, derived by radiative transfer model (RTM) inversion, when assimilated into a crop growth model (i.e., SAFY) provides a way to assess yields with a higher accuracy with respect to open loop model runs: 1.14 t·ha−1 vs 4.42 t·ha−1 RMSE for assimilation and open loop, respectively. Concerning food security, results show that different pathogens could be detected by remote sensing satellite data. A k coefficient higher than 0.84 was achieved for yellow rust, thus assuring a monitoring accuracy, and for the diseased samples k was higher than 0.87. Concerning permanent crops, neural network (NN) algorithms allow classification of the Pseudomonas syringae pathogen on kiwi orchards with an overall accuracy higher than 91%.

• Publisher: MDPI AG
• Subject: Agricultural management / Agricultural practices / Agricultural production / Agricultural resources / Algorithms / Calibration / Cooperation / Crop diseases / Crop growth / Crop management / crop models / crop pest and disease / crop variables estimation / Crops / Datasets / Discriminant analysis / Farming systems / Food security / Growth models / Kalman filters / modeling / Monitoring / multispectral data analysis / Neural networks / Orchards / Pathogens / Principal components analysis / Pseudomonas syringae / Radiative transfer / Remote sensing / Retrieval / satellite data assimilation / Satellites / Stripe rust / Sustainability management / Sustainable practices / Unmanned aerial vehicles / Variables / Wheat / yield forecasting