Saline soils worldwide: Identifying the most promising areas for saline …
网页2022年8月1日 · Saline cropland in non-depleted water basins sums 2,136,800 km 2. We argue that these are the most promising areas for sustainable saline agriculture. The largest saline areas are located mostly in Russia, Argentina, China, United States, and Kazakhstan.
Soil salinity: A global threat to sustainable development
网页2021年10月23日 · Excess salts present in the soil make it saline, and it poses a significant threat to agricultural production and environmental health. Soil salinity is an extensive problem and spreads over one billion hectares extended over 100 countries.
Land salinization - Encyclopedia of the Environment
网页Every year, 10 million hectares of agricultural land are destroyed worldwide by soil salinization. Climate change , overuse of groundwater , increasing use of poor quality irrigation water, massive irrigation in a semi-arid to arid climate zone and lack of soil leaching [3] may intensify this phenomenon of soil salinization.
Global Map of Salt-affected Soils (GSASmap) - Food and …
网页With the current information from 118 countries covering 85% of global land area, it shows that more than 424 million hectares of topsoil (0-30 cm) and 833 million hectares of subsoil (30-100 cm) are salt-affected: 85% of salt-affected topsoils are saline, 10% are sodic and 5% are saline-sodic.
Soil Salinity and Sodicity in Drylands: A Review of Causes, Effects ...
网页2021年8月10日 · Over time, the extent of saline, sodic, and saline-sodic croplands has increased, resulting in accelerated land degradation and desertification, decreased agricultural productivity, and consequently jeopardizing environmental and food security.
Soil salinity | Global Soil Partnership | Food and Agriculture ...
网页Salt-affected soils consist of saline and sodic soils, occur in all continents and under almost all climatic conditions, but their distribution is relatively more extensive in the arid and semi-arid regions compared to the humid regions. Soil salinization and sodification are major soil degradation processes threatening ecosystem and are ...
World map of salt-affected soils launched at virtual conference
网页2021年10月20日 · The map estimates that there are more than 833 million hectares of salt-affected soils around the globe (8.7% of the planet). Most of them can be found in naturally arid or semi-arid environments in Africa, Asia and Latin America.
Meta-Analysis of the Effect of Saline-Alkali Land Improvement …
网页2022年11月13日 · The scientific improvement and utilization of saline-alkali land can significantly improve the function of saline-alkali land in increasing the sink of organic carbon and play an important role in achieving the goal of …
Saline soils worldwide: Identifying the most promising areas for saline …
网页2022年8月1日 · Our results show that the total area of salt-affected soils equals 17 million km², but the largest potential for saline agriculture lays in saline soils above 4 dS/m ECe in non-depleted water...
Global predictions of primary soil salinization under changing climate ...
网页2021年11月18日 · A soil with salinity of EC e ≥ 2 dS m −1 (at 25 °C) is traditionally considered as a saline soil 10; however, depending on the plant type, climatic conditions, and soil-water balance ...
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