Table 1.
Site geographic information and soil physicochemical parameters used for this study.
| Sample | Location | Vegetation | Latitude (N) | Longitude (E) | Altitude (m asl) | Slope (°) | pH | Soil organic C (g kg−1) | Total N (g kg−1) | Total P (g kg−1) | Moisture (%) | Number of phylotypea | Phylogenetic diversityb |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| QL-A | Qingling mountain | Quercus wutaishanica | 34°6′25.74″ | 108°11′36.7″ | 708 | 0–15 | 6.80 | 15.03 | 1.28 | 0.56 | 16.1 | 2,710 | 164.2 |
| QL-B | Qingling mountain | Quercus acutidentata | 34°10′52.14″ | 107°39′2.15″ | 754 | 42 | 7.65 | 21.63 | 1.99 | 0.59 | 17.6 | 3,968 | 255.2 |
| QL-C | Qingling mountain | Quercus wutaishanica | 34°4′15.23″ | 108°1′5.27″ | 822 | 10–30 | 6.14 | 14.87 | 1.31 | 0.54 | 12.8 | 3,036 | 183.4 |
| GZ-A | Guanzhong, Qishan | Zea mays L. | 34°25′59.98″ | 107°39′45.96″ | 656 | 1–5 | 8.54 | 9.89 | 1.11 | 0.93 | 17.2 | 4,128 | 243.4 |
| GZ-B | Guanzhong, Fufeng | Zea mays L. | 34°20′28.46″ | 108°0′41.66″ | 549 | 1–5 | 8.43 | 9.95 | 1.02 | 0.95 | 13.8 | 3,899 | 237.0 |
| GZ-C | Guanzhong, Xingpin | Zea mays L. | 34°18′15.43″ | 108°22′53.05″ | 415 | 0–5 | 8.55 | 12.49 | 0.94 | 1.18 | 15.2 | 3,964 | 247.1 |
| WB-A | Weibei, Fuping | Amygdalus persica L. | 34°43′55.22″ | 109°13′45.74″ | 421 | 0–5 | 7.81 | 10.00 | 1.01 | 1.1 | 7.2 | 4,694 | 296.2 |
| WB-B | Weibei, Pucheng | Pyrus spp | 34°54′38.12″ | 109°36′4.50″ | 397 | 0–5 | 8.42 | 9.92 | 1.00 | 1.38 | 12.5 | 4,099 | 255.8 |
| WB-C | Weibei, Changwu | Malus pumila Mill. | 35°11′45.60″ | 107°48′26.13″ | 1,180 | 0–5 | 7.78 | 9.06 | 1.20 | 1.52 | 19.5 | 3,285 | 209.4 |
| LC-A | Luochuan county | Malus pumila Mill. | 35°47′43.77″ | 109°28′31.76″ | 1,206 | 0–5 | 8.32 | 8.09 | 0.97 | 0.96 | 16.5 | 4,550 | 281.5 |
| LC-B | Luochuan county | Malus pumila Mill. | 35°49′30.47″ | 109°29′0.83″ | 1,220 | 1–3 | 8.31 | 8.61 | 1.09 | 1.05 | 11.2 | 4,359 | 262.1 |
| LC-C | Luochuan county | Malus pumila Mill. | 35°50′32.16″ | 109°24′28.55″ | 1,138 | 1–3 | 8.45 | 6.88 | 0.77 | 0.68 | 12.7 | 4,732 | 300.4 |
| ZWL-A | Ziwuling mountain | Pinus tabuliformis | 36°0′18.15″ | 109°5′54.50″ | 1,185 | 30–40 | 8.38 | 15.62 | 1.36 | 0.54 | 14.4 | 3,654 | 231.7 |
| ZWL-B | Ziwuling mountain | Carrière | 36°1′42″ | 108°52′43″ | 1,025 | 0–15 | 8.87 | 10.59 | 0.95 | 0.47 | 18.5 | 3,786 | 239.2 |
| ZWL-C | Ziwuling mountain | Betula platyphylla | 36°5′56.70″ | 108°37′28.56″ | 1,151 | 30–45 | 8.73 | 18.76 | 1.41 | 0.58 | 14.5 | 3,631 | 205.7 |
| AS-A | Ansai county, fangta | Artemisia gmelinii | 36°47′23.30″ | 109°16′32.67″ | 1,273 | 21 | 8.9 | 2.58 | 0.32 | 0.53 | 13.6 | 4,294 | 252.5 |
| AS-B | Ansai, zhifanggou | Caragana Korshinskii | 36°43′54.22″ | 109°15′29.74″ | 1,298 | 10 | 8.96 | 2.69 | 0.33 | 0.49 | 8.1 | 4,065 | 238.5 |
| AS-C | Ansai, zhifanggou | Robinia pseudoacacia | 36°43′56.05″ | 109°15′18.10″ | 1,335 | 17 | 8.79 | 4.00 | 0.47 | 0.56 | 15.6 | 3,897 | 266.4 |
| LDW-A | Liandaowan | Bothriochloa ischaemum (L.) | 37°11′39″ | 108°58′15″ | 1,350 | 30–40 | 8.82 | 5.05 | 0.45 | 0.46 | 18.9 | 3,790 | 231.5 |
| LDW-B | Liandaowan | Artemisia scoparia Waldst. | 37°10′12″ | 108°57′01″ | 1,420 | 0–5 | 9.11 | 2.66 | 0.18 | 0.47 | 13.8 | 4,220 | 247.6 |
| LDW-C | Liandaowan | Stipa grandis | 37°11′49.06″ | 108°57′11.34″ | 1,403 | 7–20 | 9.12 | 4.09 | 0.27 | 0.49 | 14.6 | 4,251 | 252.0 |
| JB-A | Jingbian county | Salix cheilophila | 37°31′20.21″ | 108°51′38.41″ | 1,563 | 0–5 | 8.91 | 2.91 | 0.27 | 0.32 | 11.2 | 3,699 | 266.6 |
| JB-B | Jingbian county | Salix matsudana Koidz. | 37°30′9.63″ | 108°52′58.06″ | 1,633 | 1–10 | 9.02 | 2.61 | 0.29 | 0.26 | 7.6 | 4,087 | 246.7 |
| JB-C | Jingbian county | Populus simonii Carr | 37°28′16.91″ | 108°54′8.08″ | 1,572 | 1–10 | 8.92 | 4.54 | 0.45 | 0.43 | 9.5 | 4,407 | 260.6 |
a
The number of phylotype was calculated from 8,000 sequences per soil sample at the 97% similarity lever.
b
These values (PD, whole tree) were calculated using Faith's index.