Saline soils worldwide: Identifying the most promising areas for saline agriculture

被引:126
作者
Negacz, Katarzyna [1 ]
Malek, Ziga [1 ]
de Vos, Arjen [2 ]
Vellinga, Pier [1 ]
机构
[1] Vrije Univ Amsterdam, De Boelelaan 1111, NL-1081 HV Amsterdam, Netherlands
[2] Salt Doctors, Vloedlijn 47, NL-1791 HK Den Burg, Netherlands
关键词
Saline soils; Saline agriculture; Salt-tolerant crops; Revitalisation; SALT TOLERANCE;
D O I
10.1016/j.jaridenv.2022.104775
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Salinization poses a major challenge for modern agriculture with considerable areas being salt-affected worldwide. However, these lands can be cultivated by applying saline agriculture, involving soil, water and salt tolerant crop management methods. The agricultural use of saline soils helps in addressing food security in times of population growth and climate change. Therefore, there is a need to map saline soils and examine conditions under which saline agriculture can be implemented. The aim of this study is to identify locations and surface area of saline soils. The potential areas for saline agricultural production are mapped using the QGIS software with a focus on the most promising lands for saline agriculture. To identify these most promising areas, we apply criteria of soil salinity, soil fertility, soil pH, water availability, presence of irrigation equipment, as well as depleted water basins. Our results show that the total area of salt-affected soils equals 17 million km(2), but the largest potential for saline agriculture lays in saline soils above 4 dS/m ECe in non-depleted water basins totalling to 2 million km(2). We conclude that further socio-economic analysis is needed to fully determine countries which should be prioritized in exploring the future potential for sustainable food production.
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页数:9
相关论文
共 59 条
[1]   Future protein supply [J].
Aiking, Harry .
TRENDS IN FOOD SCIENCE & TECHNOLOGY, 2011, 22 (2-3) :112-120
[2]  
[Anonymous], 2008, EUROPEAN COMMISSION
[3]  
[Anonymous], 1997, GLOSS SOIL SCI TERMS
[4]  
Aslam Z., 2009, PUBL NUCL I AGR BIOL, V46
[5]   The waterlogging/salinity interaction in higher plants revisited - focusing on the hypoxia-induced disturbance to K+ homeostasis [J].
Barrett-Lennard, Edward G. ;
Shabala, Sergey N. .
FUNCTIONAL PLANT BIOLOGY, 2013, 40 (8-9) :872-882
[6]   The interaction between waterlogging and salinity in higher plants: causes, consequences and implications [J].
Barrett-Lennard, EG .
PLANT AND SOIL, 2003, 253 (01) :35-54
[7]   Salinity and waterlogging as constraints to saltland pasture production: A review [J].
Bennett, Sarita Jane ;
Barrett-Lennard, E. G. ;
Colmer, T. D. .
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2009, 129 (04) :349-360
[8]   Water depletion: An improved metric for incorporating seasonal and dry-year water scarcity into water risk assessments [J].
Brauman, Kate A. ;
Richter, Brian D. ;
Postel, Sandra ;
Malsy, Marcus ;
Floerke, Martina .
ELEMENTA-SCIENCE OF THE ANTHROPOCENE, 2016, 4
[9]   Flooding tolerance in halophytes [J].
Colmer, Timothy D. ;
Flowers, Timothy J. .
NEW PHYTOLOGIST, 2008, 179 (04) :964-974
[10]  
de Vos, 1990, CROP SALT TOLERANCE