Table 1. Basic information of the sample site.
| Sample type |
Recovery years/a |
Altitude /m |
Longitude and latitude |
Predominant species |
|---|---|---|---|---|
| Cropland | 0 | 1,211 | 26°20′52″N, 106°32′18″E |
Zea mays |
| Grassland | 5 | 1,217 | 26°20′59″N, 106°32′18″E |
Imperata cylindrical |
| 15 | 1,285 | 26°20′5″N, 106°27′56″E |
Imperata cylindrical | |
| Shrubland | 20 | 1,289 | 26°18′54″N, 106°28′39″E |
Pyracantha fortuneana, Artemisia annua, Rubus idaeus L., Zanthoxylum simulans |
| Woodland | 40 | 1,223 | 26°19′19″N, 106°29′6″E |
CatalpabungeiC.A.Mey
Celtis sinensis Pers |