## 3 Results
### The Assessment of ESEV and ESV  
The process of land use change is usually accompanied by changes in the landscape pattern, landscape ecological process and ESV. By utilizing the modified ESEV, modified ESV and land use categories (Tables 3, 5 and 6, respectively), the ESEV of land use type \"\(k\)\" and ecosystem service function type \"\(f\)\" and the total ESV of the study area in 2004, 2010 and 2016 could be obtained in ArcGIS and Excel using Equations (6)-(8). These results are shown in Tables 7 and 8. \begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**Type** & **Year** & **Cropland** & **Orchard** & **Forest** & **Grassland** & **Unused and Other** & **River** & **Wetland and Lakes** \\ \hline \multirow{3}{*}{FP} & 2004 & 3.29 & 2.52 & 0.71 & 0.92 & 0 & 2.05 & 2.37 \\  & 2010 & 5.82 & 4.42 & 1.24 & 1.63 & 0 & 3.35 & 3.87 \\  & 2016 & 8.23 & 6.28 & 1.73 & 2.33 & 0 & 4.55 & 5.31 \\ \hline \multirow{3}{*}{RMP} & 2004 & 0.96 & 1.48 & 1.6 & 1.36 & 0 & 1.08 & 2.33 \\  & 2010 & 1.71 & 2.59 & 2.83 & 2.39 & 0 & 1.75 & 3.79 \\  & 2016 & 2.44 & 3.68 & 4.01 & 3.41 & 0 & 2.38 & 5.2 \\ \hline \multirow{3}{*}{WP} & 2004 & 0.12 & 2 & 2.07 & 1.9 & 0 & 22.22 & 9.4 \\  & 2010 & 0.2 & 3.55 & 3.71 & 3.39 & 0 & 43.05 & 18.22 \\  & 2016 & 0.38 & 6.01 & 6.28 & 5.74 & 0 & 72.3 & 30.6 \\ \hline \multirow{3}{*}{GR} & 2004 & 4.23 & 7.88 & 8.28 & 7.5 & 0.07 & 2.94 & 4.18 \\  & 2010 & 8.21 & 15.35 & 16.1 & 14.59 & 0.16 & 5.7 & 8.17 \\  & 2016 & 9.21 & 17.17 & 17.98 & 16.3 & 0.16 & 6.39 & 9.1 \\ \hline \multirow{3}{*}{CR} & 2004 & 2.16 & 22.31 & 24.76 & 19.84 & 0 & 8.72 & 13.71 \\  & 2010 & 4.23 & 43.41 & 48.19 & 38.62 & 0 & 16.98 & 26.71 \\  & 2016 & 4.71 & 48.53 & 53.89 & 43.17 & 0 & 18.96 & 29.84 \\ \hline \multirow{3}{*}{EP} & 2004 & 0.66 & 6.96 & 7.36 & 6.56 & 0.38 & 9.71 & 9.9 \\  & 2010 & 1.28 & 13.51 & 14.31 & 12.76 & 0.76 & 18.89 & 19.29 \\  & 2016 & 1.41 & 15.11 & 15.98 & 14.24 & 0.81 & 21.12 & 21.56 \\ \hline \multirow{3}{*}{HR} & 2004 & 10.37 & 16.29 & 18.06 & 14.55 & 0.12 & 48.9 & 33.45 \\  & 2010 & 20.17 & 31.73 & 35.16 & 28.34 & 0.24 & 82.91 & 56.72 \\  & 2016 & 22.53 & 35.47 & 39.27 & 31.63 & 0.27 & 112.65 & 77.07 \\ \hline \multirow{3}{*}{SFR} & 2004 & 3.93 & 9.62 & 10.09 & 9.15 & 0.07 & 2.52 & 4.56 \\  & 2010 & 7.65 & 18.73 & 19.65 & 17.78 & 0.16 & 4.9 & 8.89 \\  & 2016 & 8.56 & 20.91 & 21.93 & 19.88 & 0.16 & 5.47 & 9.97 \\ \hline \multirow{3}{*}{NC} & 2004 & 0.45 & 0.73 & 0.75 & 0.68 & 0 & 0.26 & 0.68 \\  & 2010 & 0.88 & 1.4 & 1.47 & 1.32 & 0 & 0.52 & 1.32 \\  & 2016 & 0.97 & 1.57 & 1.68 & 1.52 & 0 & 0.6 & 1.52 \\ \hline \multirow{3}{*}{BP} & 2004 & 0.49 & 8.75 & 9.17 & 8.3 & 0.07 & 7.17 & 12.65 \\  & 2010 & 0.96 & 17.02 & 17.86 & 16.14 & 0.16 & 13.95 & 24.63 \\  & 2016 & 1.08 & 19.01 & 19.99 & 18.09 & 0.16 & 15.6 & 27.51 \\ \hline \multirow{3}{*}{AS} & 2004 & 0.31 & 5.05 & 5.31 & 4.8 & 0.49 & 3.31 & 13.66 \\  & 2010 & 0.52 & 8.49 & 8.93 & 8.09 & 0.84 & 5.54 & 22.96 \\  & 2016 & 1.14 & 19.44 & 20.36 & 18.47 & 1.95 & 12.67 & 52.48 \\ \hline \multirow{3}{*}{Total} & 2004 & 26.97 & 83.59 & 88.16 & 75.56 & 1.2 & 108.88 & 106.89 \\  & 2010 & 51.63 & 160.2 & 169.45 & 145.05 & 2.32 & 197.54 & 194.57 \\ \cline{1-1}  & 2016 & 60.66 & 193.18 & 203.1 & 174.78 & 3.51 & 272.69 & 270.16 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: The ESV per unit area in each study year (\(10^{3}\) Yuan\(\cdot\)hm\({}^{-2}\cdot\)a\({}^{-1}\) ). The ESEV is a quantitative indicator reflecting the relative service capabilities of various ecosystem services in various ecosystems. The total ESEV of the study area was approximately 3,323,080 in 2004, peaked at 3,373,170 in 2010 and declined to 3,264,940 in 2016. As shown in Tables 6 and 7, during the period 2004-2010, the urbanization process reduced the area of cropland and orchard in the study area; however, due to the increase in the ESEV coefficients of ecological land and the increase in the areas of forests, grasslands and wetlands, the total ESEV in the study area increased by 50,090, and the comprehensive service capacity of the ecosystem was strengthened.