# Precipitation-Use Efficiency and Its Conversion with Climate Types in Mainland China
## 2 Materials and Methods
### Data
\begin{table}
\begin{tabular}{c c c c c c} \hline
**No.** & **Stations** & **Latitude** & **Longitude** & **Observational Periods** & **Reference** \\ \hline
1 & Daxing & 39.53\({}^{\circ}\) N & 116.25\({}^{\circ}\) E & 2006 & [PERSON] [29] \\
2 & [PERSON] & 23.17\({}^{\circ}\) N & 112.53\({}^{\circ}\) E & 2003–2010 & China FLUX \\
3 & [PERSON] & 42.40\({}^{\circ}\) N & 128.10\({}^{\circ}\) E & 2003–2010 & China FLUX \\
4 & Guantan & 38.53\({}^{\circ}\) N & 100.25\({}^{\circ}\) E & 2011 & [PERSON] et al. [30] \\
5 & [PERSON] & 29.31\({}^{\circ}\) N & 112.51\({}^{\circ}\) E & 2006 & [PERSON] [31] \\
6 & [PERSON] & 40.54\({}^{\circ}\) N & 108.69\({}^{\circ}\) E & 2006 & [PERSON] et al. [32] \\
7 & [PERSON] & 35.02\({}^{\circ}\) N & 112.47\({}^{\circ}\) E & 2007–2009 & [PERSON] [33] \\
8 & [PERSON] & 21.96\({}^{\circ}\) N & 101.20\({}^{\circ}\) E & 2003–2010 & China FLUX \\
9 & [PERSON] & 26.74\({}^{\circ}\) N & 115.06\({}^{\circ}\) E & 2003–2010 & China FLUX \\
10 & [PERSON] & 24.53\({}^{\circ}\) N & 101.02\({}^{\circ}\) E & 2010 & China FLUX \\
11 & **Gonggashan** & 29.58\({}^{\circ}\) N & 102.00\({}^{\circ}\) E & **2009** & [PERSON] et al. [34] \\
12 & **Huaining** & 33.00\({}^{\circ}\) N & 117.00\({}^{\circ}\) E & **2005–2006** & [PERSON] et al. [35] \\
13 & Huitong & 26.83\({}^{\circ}\) N & 109.75\({}^{\circ}\) E & 2009 & [PERSON] et al. [36] \\
14 & Laoshan & 45.33\({}^{\circ}\) N & 127.57\({}^{\circ}\) E & 2004–2006 & Cui [37] \\
15 & Miyun & 40.63\({}^{\circ}\) N & 117.32\({}^{\circ}\) E & 2008–2010 & [PERSON] et al. [38] \\
16 & Taihuyuan & 30.18\({}^{\circ}\) N & 119.34\({}^{\circ}\) E & 2011 & [PERSON] et al. [39] \\
17 & Changing & 44.58\({}^{\circ}\) N & 123.50\({}^{\circ}\) E & 2007–2008 & [PERSON] et al. [40] \\
18 & Duolum County & 42.05\({}^{\circ}\) N & 116.28\({}^{\circ}\) E & 2006 & [PERSON] et al. [41] \\
19 & Haibei \({}^{\text{a}}\) & 37.66\({}^{\circ}\) N & 101.29\({}^{\circ}\) E & 2003–2010 & China FLUX \\
20 & **Haibei \({}^{\text{b}}\)** & 37.60\({}^{\circ}\) N & 101.30\({}^{\circ}\) E & **2002–2004** & [PERSON] et al. [42] \\
21 & Siziwang Banner, grazed & 41.79\({}^{\circ}\) N & 111.90\({}^{\circ}\) E & 2010 & [PERSON] et al. [43] \\
22 & [PERSON], grazed & 43.55\({}^{\circ}\) N & 116.67\({}^{\circ}\) E & 2006 & [PERSON] et al. [41] \\
23 & [PERSON], typical fenced & 44.13\({}^{\circ}\) N & 116.33\({}^{\circ}\) E & 2004–2006 & [PERSON] et al. [44] \\
24 & [PERSON] & 44.59\({}^{\circ}\) N & 122.52\({}^{\circ}\) E & 2003–2008 & [PERSON] and [PERSON] [45] \\
25 & **[PERSON]** & 35.95\({}^{\circ}\) N & 104.14\({}^{\circ}\) E & **2007–2012** & [PERSON] et al. [46] \\
26 & [PERSON] & 38.04\({}^{\circ}\) N & 100.46\({}^{\circ}\) E & 2008 & [PERSON] et al. [47] \\
27 & [PERSON] & 30.85\({}^{\circ}\) N & 91.08\({}^{\circ}\) E & 2003–2010 & China FLUX \\
28 & [PERSON] & 37.81\({}^{\circ}\) N & 107.48\({}^{\circ}\) E & 2016 & [PERSON] [48] \\
29 & Xinlin Gol & 43.55\({}^{\circ}\) N & 116.68\({}^{\circ}\) E & 2003–2010 & China FLUX \\
30 & [PERSON] & 44.28\({}^{\circ}\) N & 87.93\({}^{\circ}\) E & 2004 & [PERSON] et al. [49] \\
31 & **Sunitezuo** & 44.00\({}^{\circ}\) N & 113.57\({}^{\circ}\) E & **2008–2009** & [PERSON] et al. [50] \\
32 & Sanjiangyuan & 34.35\({}^{\circ}\) N & 100.50\({}^{\circ}\) E & 2006–2008 & [PERSON] et al. [51] \\
33 & Tianjun & 38.42\({}^{\circ}\) N & 98.32\({}^{\circ}\) E & 2011 & [PERSON] et al. [52] \\
34 & Yucheng & 36.95\({}^{\circ}\) N & 116.60\({}^{\circ}\) E & 2003–2010 & China FLUX \\
35 & Dingxi & 35.55\({}^{\circ}\) N & 104.58\({}^{\circ}\) E & 2010 & [PERSON] et al. [53] \\
36 & Jinzhou & 41.15\({}^{\circ}\) N & 121.20\({}^{\circ}\) E & 2006 & [PERSON] et al. [54] \\
37 & **Yueyang** & 29.31\({}^{\circ}\) N & 112.51\({}^{\circ}\) E & **2015** & [PERSON] and [PERSON] [55] \\
38 & **Changwu** & 35.23\({}^{\circ}\) N & 107.67\({}^{\circ}\) E & **2008** & [PERSON] et al. [56] \\ \hline \end{tabular}
\end{table} 
Table 1: Metadata for each flux station including station name, location, altitude, years of available data, and references.