Rice fallow lands offer a major opportunity for sustainable intensification in South Asia, particularly in West Bengal, India, where 11.7 million hectares remain uncultivated post-rice harvest due to water limitations. This study used Sentinel-2 satellite data, K-means clustering, and random forest algorithms to map rice fallow areas and soil moisture dynamics from October to May (2019–2020). Results identified 1.97 million hectares of Rabi rice fallows, with 53% and 43% of post-Kharif and post-Rabi areas, respectively, suitable for legume cultivation. The study highlights the urgency of timely interventions, as soil moisture depletes rapidly after harvest, and provides high-resolution maps to guide legume-based intensification strategies for food security and soil health.
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https://doi.org/10.1117/1.JRS.19.014515Altmetric score:
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TI - Spatiotemporal mapping of rice fallows and soil moisture dynamics for sustainable intensification using time series geospatial big data
AU - Krishna, G.
AU - Biradar, C.M.
AB - Rice fallow lands offer a major opportunity for sustainable intensification in South Asia, particularly in West Bengal, India, where 11.7 million hectares remain uncultivated post-rice harvest due to water limitations. This study used Sentinel-2 satellite data, K-means clustering, and random forest algorithms to map rice fallow areas and soil moisture dynamics from October to May (2019–2020). Results identified 1.97 million hectares of Rabi rice fallows, with 53% and 43% of post-Kharif and post-Rabi areas, respectively, suitable for legume cultivation. The study highlights the urgency of timely interventions, as soil moisture depletes rapidly after harvest, and provides high-resolution maps to guide legume-based intensification strategies for food security and soil health.
PY - 2025
UR - https://www.cifor-icraf.org/knowledge/publication/44697/
DO - https://doi.org/10.1117/1.JRS.19.014515
KW - crop diversification, farming systems, geospatial analysis, legumes, remote sensing, rice fallows, smallholders, soil moisture, sustainable intensification
ER -Endnote (.ciw)
%T Spatiotemporal mapping of rice fallows and soil moisture dynamics for sustainable intensification using time series geospatial big data
%A Krishna, G.
%A Biradar, C.M.
%D 2025
%U https://www.cifor-icraf.org/knowledge/publication/44697/
%R https://doi.org/10.1117/1.JRS.19.014515
%X Rice fallow lands offer a major opportunity for sustainable intensification in South Asia, particularly in West Bengal, India, where 11.7 million hectares remain uncultivated post-rice harvest due to water limitations. This study used Sentinel-2 satellite data, K-means clustering, and random forest algorithms to map rice fallow areas and soil moisture dynamics from October to May (2019–2020). Results identified 1.97 million hectares of Rabi rice fallows, with 53% and 43% of post-Kharif and post-Rabi areas, respectively, suitable for legume cultivation. The study highlights the urgency of timely interventions, as soil moisture depletes rapidly after harvest, and provides high-resolution maps to guide legume-based intensification strategies for food security and soil health.
%K crop diversification
%K farming systems
%K geospatial analysis
%K legumes
%K remote sensing
%K rice fallows
%K smallholders
%K soil moisture
%K sustainable intensification
Publication year
2025
ISSN
1931-3195
Authors
Language
English
Keywords
crop diversification, farming systems, geospatial analysis, legumes, remote sensing, rice fallows, smallholders, soil moisture, sustainable intensification
Source
Journal of Applied Remote Sensing. 19(1): 14515
Geographic
India
