Salt of the Earth
Salinity in surface waters is on the rise throughout much of the world. Many factors contribute to this change including increased water extraction, poor irrigation management, and sea-level rise. To date no study has attempted to quantify impacts on global food production. In this paper we develop a plausibly causal model to test the sensitivity of global and regional agricultural productivity to changes in water salinity. To do so, we utilize several local and global datasets on water quality and agricultural productivity and a model which isolates the impact of exogenous changes in water salinity on yields. We then train a machine learning model to predict salinity globally in order to simulate average global food losses from 2000-2013. These losses are found to be high, in the range of the equivalent of 124 trillion kilocalories, or enough to feed over 170 million people every day, each year. Global maps building on these results show that pockets of high losses occur on all continents but can be expected to be particularly problematic in regions already experiencing malnutrition challenges.
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| Main Authors: | , , , , , |
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| Format: | Working Paper biblioteca |
| Language: | English |
| Published: |
World Bank, Washington, DC
2019-12-10
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| Subjects: | WATER QUALITY, WATER SALINITY, AGRICULTURAL PRODUCTIVITY, ELECTRICAL CONDUCTIVITY, YIELD LOSS, |
| Online Access: | http://documents.worldbank.org/curated/en/641121576064837061/Salt-of-the-Earth-Quantifying-the-Impact-of-Water-Salinity-on-Global-Agricultural-Productivity https://hdl.handle.net/10986/33070 |
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dig-okr-10986330702024-08-07T18:59:30Z Salt of the Earth Quantifying the Impact of Water Salinity on Global Agricultural Productivity Desbureaux, Sebastien Russ, Jason Escurra, Jorge Damania, Richard Rodella, Aude-Sophie Zaveri, Esha WATER QUALITY WATER SALINITY AGRICULTURAL PRODUCTIVITY ELECTRICAL CONDUCTIVITY YIELD LOSS Salinity in surface waters is on the rise throughout much of the world. Many factors contribute to this change including increased water extraction, poor irrigation management, and sea-level rise. To date no study has attempted to quantify impacts on global food production. In this paper we develop a plausibly causal model to test the sensitivity of global and regional agricultural productivity to changes in water salinity. To do so, we utilize several local and global datasets on water quality and agricultural productivity and a model which isolates the impact of exogenous changes in water salinity on yields. We then train a machine learning model to predict salinity globally in order to simulate average global food losses from 2000-2013. These losses are found to be high, in the range of the equivalent of 124 trillion kilocalories, or enough to feed over 170 million people every day, each year. Global maps building on these results show that pockets of high losses occur on all continents but can be expected to be particularly problematic in regions already experiencing malnutrition challenges. 2019-12-23T17:53:43Z 2019-12-23T17:53:43Z 2019-12-10 Working Paper Document de travail Documento de trabajo http://documents.worldbank.org/curated/en/641121576064837061/Salt-of-the-Earth-Quantifying-the-Impact-of-Water-Salinity-on-Global-Agricultural-Productivity https://hdl.handle.net/10986/33070 English CC BY 3.0 IGO http://creativecommons.org/licenses/by/3.0/igo World Bank application/pdf text/plain World Bank, Washington, DC |
| institution |
Banco Mundial |
| collection |
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| country |
Estados Unidos |
| countrycode |
US |
| component |
Bibliográfico |
| access |
En linea |
| databasecode |
dig-okr |
| tag |
biblioteca |
| region |
America del Norte |
| libraryname |
Biblioteca del Banco Mundial |
| language |
English |
| topic |
WATER QUALITY WATER SALINITY AGRICULTURAL PRODUCTIVITY ELECTRICAL CONDUCTIVITY YIELD LOSS WATER QUALITY WATER SALINITY AGRICULTURAL PRODUCTIVITY ELECTRICAL CONDUCTIVITY YIELD LOSS |
| spellingShingle |
WATER QUALITY WATER SALINITY AGRICULTURAL PRODUCTIVITY ELECTRICAL CONDUCTIVITY YIELD LOSS WATER QUALITY WATER SALINITY AGRICULTURAL PRODUCTIVITY ELECTRICAL CONDUCTIVITY YIELD LOSS Desbureaux, Sebastien Russ, Jason Escurra, Jorge Damania, Richard Rodella, Aude-Sophie Zaveri, Esha Salt of the Earth |
| description |
Salinity in surface waters is on the
rise throughout much of the world. Many factors contribute
to this change including increased water extraction, poor
irrigation management, and sea-level rise. To date no study
has attempted to quantify impacts on global food production.
In this paper we develop a plausibly causal model to test
the sensitivity of global and regional agricultural
productivity to changes in water salinity. To do so, we
utilize several local and global datasets on water quality
and agricultural productivity and a model which isolates the
impact of exogenous changes in water salinity on yields. We
then train a machine learning model to predict salinity
globally in order to simulate average global food losses
from 2000-2013. These losses are found to be high, in the
range of the equivalent of 124 trillion kilocalories, or
enough to feed over 170 million people every day, each year.
Global maps building on these results show that pockets of
high losses occur on all continents but can be expected to
be particularly problematic in regions already experiencing
malnutrition challenges. |
| format |
Working Paper |
| topic_facet |
WATER QUALITY WATER SALINITY AGRICULTURAL PRODUCTIVITY ELECTRICAL CONDUCTIVITY YIELD LOSS |
| author |
Desbureaux, Sebastien Russ, Jason Escurra, Jorge Damania, Richard Rodella, Aude-Sophie Zaveri, Esha |
| author_facet |
Desbureaux, Sebastien Russ, Jason Escurra, Jorge Damania, Richard Rodella, Aude-Sophie Zaveri, Esha |
| author_sort |
Desbureaux, Sebastien |
| title |
Salt of the Earth |
| title_short |
Salt of the Earth |
| title_full |
Salt of the Earth |
| title_fullStr |
Salt of the Earth |
| title_full_unstemmed |
Salt of the Earth |
| title_sort |
salt of the earth |
| publisher |
World Bank, Washington, DC |
| publishDate |
2019-12-10 |
| url |
http://documents.worldbank.org/curated/en/641121576064837061/Salt-of-the-Earth-Quantifying-the-Impact-of-Water-Salinity-on-Global-Agricultural-Productivity https://hdl.handle.net/10986/33070 |
| work_keys_str_mv |
AT desbureauxsebastien saltoftheearth AT russjason saltoftheearth AT escurrajorge saltoftheearth AT damaniarichard saltoftheearth AT rodellaaudesophie saltoftheearth AT zaveriesha saltoftheearth AT desbureauxsebastien quantifyingtheimpactofwatersalinityonglobalagriculturalproductivity AT russjason quantifyingtheimpactofwatersalinityonglobalagriculturalproductivity AT escurrajorge quantifyingtheimpactofwatersalinityonglobalagriculturalproductivity AT damaniarichard quantifyingtheimpactofwatersalinityonglobalagriculturalproductivity AT rodellaaudesophie quantifyingtheimpactofwatersalinityonglobalagriculturalproductivity AT zaveriesha quantifyingtheimpactofwatersalinityonglobalagriculturalproductivity |
| _version_ |
1807156066039889920 |