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土地与水资源

Graphs and maps

Proportion of land salinized due to irrigation
Source: The State of the World’s Land and Water Resources for Food and Agriculture (SOLAW, 2011)
Yield gap for a combination of major crops
Source: The State of the World’s Land and Water Resources for Food and Agriculture (SOLAW, 2011)
Agricultural systems at risk: human pressure on land and water
Source: The State of the World’s Land and Water Resources for Food and Agriculture (SOLAW, 2011)
Distribution of poor population in developing countries</a>
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Source: The State of the World’s Land and Water Resources for Food and Agriculture (SOLAW, 2011)
Global distribution of physical water scarcity by major river basin
Source: The State of the World’s Land and Water Resources for Food and Agriculture (SOLAW, 2011)
Area equipped for irrigation as a percentage of land area
Source: The State of the World’s Land and Water Resources for Food and Agriculture (SOLAW, 2011)
 Major agricultural systems
Source: The State of the World’s Land and Water Resources for Food and Agriculture (SOLAW, 2011)
Estimated World Water Use
Graph showing estimated world water use in Reservoir losses, Municipal, Industry & Agriculture areas. 
The Global Map of Irrigation Areas (Version 4)
In global studies related to water use, food production or climate change, knowing the location of irrigate agriculture is important in order to assess better the impact of water use on the available water resources. The Global map of irrigation areas shows the amount of area equipped for irrigation around [...]
Areas of Physical and Economic Water Scarcity
Map displaying areas of physical and economic water scarcity in varying degrees of severity. Taken from the Comprehensive Assessment of Water Management in Agriculture.