Figure 12

The average irrigation amount of winter wheat from 1998 to 2008 in the main production regions of China, (A) CERES-Wheat (B); WheatGrow (This figure was created by ArcGIS 9.3, http://www.esri.com/arcgis/).

The average irrigation amount of winter wheat from 1998 to 2008 in the main production regions of China, (A) CERES-Wheat (B); WheatGrow (This figure was created by ArcGIS 9.3, http://www.esri.com/arcgis/).