Supplementary Material-3
Spatial changes in ecosystem services
High Food productivity isobserved in the middle and southern regions of the Baota District, which were mainly covered by farmland (Figure 1 in the article and Figure S1). These areas shrank from 2000 to 2005 and remained stable from 2005 to 2010. Water yield also demonstrated considerable spatial variation across the research area. The northern and southeastern section of the research area had comparatively higher water yield in 2000 and 2005. Regions with high water yield were concentrated in the northernmost and southernmost regions of the research area in 2010. Habitat quality showed spatial changes across the research area in all three years, with high values mainly in the southern region of the Baota District. Areas with moderate and high habitat quality expanded from 2000 to 2005 and stabilized from 2005 to 2010. NPP and evapotranspiration demonstrated similar spatial characteristics (Figure S2). These two services displayed much higher values in regions covered by woodland in the southern section of the research area than in the other regions in all three years. Areas with moderate values of these two services expanded from 2000 to 2005. With respect to NPP, the expansion trend continued from 2005 to 2010. High recreation capacity was mainly found in the southern region of the research area in all three years. A certain degree of expansion of areas displaying high values of this service can be observed from 2000 to 2005.
Figure S1 Maps of food productivity, water yield, and habitat quality of the Baota District for 2000, 2005, and 2010. Food denotes food productivity in 103t/pixel. Water denotes water yield in mm. A negative value for water yield indicates that annual evapotranspiration exceeds annual precipitation. Habitat denotes habitat quality with dimensionless relative value
Figure S2 Maps of NPP, evapotranspiration and recreation capacity of the Baota District for 2000, 2005, and 2010. The unit of NPP is gC/m2, ET denotes evapotranspiration in mm, and REC refers to recreation capacity with dimensionless relative value