Cargando…

Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise

Rice production in the Mekong River Delta of Vietnam (MRD) is endangered by sea-level rise and an associated increase in the incidence of salinity intrusion. This paper examines the diffusion of salt tolerant rice varieties in the MRD that were promoted through Consortium for Unfavorable Rice Enviro...

Descripción completa

Detalles Bibliográficos
Autores principales: Paik, SongYi, Le, Dung Thi Phuong, Nhu, Lien Thi, Mills, Bradford Franklin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7075592/
https://www.ncbi.nlm.nih.gov/pubmed/32176705
http://dx.doi.org/10.1371/journal.pone.0229464
_version_ 1783507062366404608
author Paik, SongYi
Le, Dung Thi Phuong
Nhu, Lien Thi
Mills, Bradford Franklin
author_facet Paik, SongYi
Le, Dung Thi Phuong
Nhu, Lien Thi
Mills, Bradford Franklin
author_sort Paik, SongYi
collection PubMed
description Rice production in the Mekong River Delta of Vietnam (MRD) is endangered by sea-level rise and an associated increase in the incidence of salinity intrusion. This paper examines the diffusion of salt tolerant rice varieties in the MRD that were promoted through Consortium for Unfavorable Rice Environments (CURE) activities. Factors associated with adoption of CURE-related varieties are estimated using a random utilty model and a dataset of 800 farm households with rice fields in salinity prone areas of the MRD. Results suggest that there has been widespread adoption of CURE-related varieties in salinity-prone areas. Further, multivariate analysis reveals that environment and location characteristics, rather than household characteristics, are the most important determinants of adoption. In particular, CURE-related varieties are more likely to be adopted in high-salinity-risk areas that are not protected by salinity barrier gates. Neighbhors’ adoption decisions also strongly influence household decisions to adopt CURE-related varieties. The contracting of mechanization, particularly for land preparation and harvest, requires the coordination of village households in timing of planting, harvest and varietal duration. This coordination appears to extend to choice of CURE-related varieties. Finally, CURE-related varieties and other varieties generate similar net revenues in a year with low salinity exposure, suggesting that CURE-related varieties are a low-cost insurance policy against salinity inundation in high risk areas. Combined, these results highlight the need to address complex factors beyond current economic profits, like environment, community choices, and risk mitigation, when designing technologies and policies that support farmer adaptation to climatic change.
format Online
Article
Text
id pubmed-7075592
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-70755922020-03-23 Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise Paik, SongYi Le, Dung Thi Phuong Nhu, Lien Thi Mills, Bradford Franklin PLoS One Research Article Rice production in the Mekong River Delta of Vietnam (MRD) is endangered by sea-level rise and an associated increase in the incidence of salinity intrusion. This paper examines the diffusion of salt tolerant rice varieties in the MRD that were promoted through Consortium for Unfavorable Rice Environments (CURE) activities. Factors associated with adoption of CURE-related varieties are estimated using a random utilty model and a dataset of 800 farm households with rice fields in salinity prone areas of the MRD. Results suggest that there has been widespread adoption of CURE-related varieties in salinity-prone areas. Further, multivariate analysis reveals that environment and location characteristics, rather than household characteristics, are the most important determinants of adoption. In particular, CURE-related varieties are more likely to be adopted in high-salinity-risk areas that are not protected by salinity barrier gates. Neighbhors’ adoption decisions also strongly influence household decisions to adopt CURE-related varieties. The contracting of mechanization, particularly for land preparation and harvest, requires the coordination of village households in timing of planting, harvest and varietal duration. This coordination appears to extend to choice of CURE-related varieties. Finally, CURE-related varieties and other varieties generate similar net revenues in a year with low salinity exposure, suggesting that CURE-related varieties are a low-cost insurance policy against salinity inundation in high risk areas. Combined, these results highlight the need to address complex factors beyond current economic profits, like environment, community choices, and risk mitigation, when designing technologies and policies that support farmer adaptation to climatic change. Public Library of Science 2020-03-16 /pmc/articles/PMC7075592/ /pubmed/32176705 http://dx.doi.org/10.1371/journal.pone.0229464 Text en © 2020 Paik et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Paik, SongYi
Le, Dung Thi Phuong
Nhu, Lien Thi
Mills, Bradford Franklin
Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise
title Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise
title_full Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise
title_fullStr Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise
title_full_unstemmed Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise
title_short Salt-tolerant rice variety adoption in the Mekong River Delta: Farmer adaptation to sea-level rise
title_sort salt-tolerant rice variety adoption in the mekong river delta: farmer adaptation to sea-level rise
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7075592/
https://www.ncbi.nlm.nih.gov/pubmed/32176705
http://dx.doi.org/10.1371/journal.pone.0229464
work_keys_str_mv AT paiksongyi salttolerantricevarietyadoptioninthemekongriverdeltafarmeradaptationtosealevelrise
AT ledungthiphuong salttolerantricevarietyadoptioninthemekongriverdeltafarmeradaptationtosealevelrise
AT nhulienthi salttolerantricevarietyadoptioninthemekongriverdeltafarmeradaptationtosealevelrise
AT millsbradfordfranklin salttolerantricevarietyadoptioninthemekongriverdeltafarmeradaptationtosealevelrise