Figure 7
From: “Grain for Green” driven land use change and carbon sequestration on the Loess Plateau, China

Distribution of “Grain for Green” program sampling sites on the Loess Plateau reported in the collected peer-reviewed papers.
Note: the number of sampling sites for the 3 rainfall zones (<450, 450–550, >550 mm of average annual precipitation) were 22, 18 and 30 respectively. The software ArcGis 9.3 was used to create the map[s].