Knowledge Resource Center for Ecological Environment in Arid Area
分面浏览：作者 |
| 当前检索式 | ((ALL：Mammoth steppe)) |
| 限定条件 | ((来源机构：University of California, Berkeley) AND (作者：Nelson, FE) AND (作者：Walker, DA)) |
| Bockheim, JG 1 | Chapin, FS 1 | Eugster, W 1 |
| Nelson, FE 1 | Ping, CL 1 | Walker, DA 1 |
