发文地区与机构
近年国家 / 地区发文量统计
| 国家 / 地区 | 发文量 |
|---|---|
| USA | 24 |
| Canada | 7 |
| Argentina | 5 |
| Mexico | 5 |
| Brazil | 4 |
| Chile | 4 |
| CHINA MAINLAND | 3 |
| GERMANY (FED REP GER) | 3 |
| Spain | 3 |
| Algeria | 2 |
近年机构发文量统计
| 机构 | 发文量 |
|---|---|
| UNIVERSITY OF ARIZONA | 8 |
| CONSEJO NACIONAL DE INVESTIGACIONES CIE... | 5 |
| COLUMBIA UNIVERSITY | 4 |
| INDIANA STATE UNIVERSITY | 4 |
| UNIVERSITY OF ARKANSAS SYSTEM | 4 |
| UNIVERSITY OF BRITISH COLUMBIA | 4 |
| HARVARD UNIVERSITY | 3 |
| INST NACL INVEST FORESTALES AGR & PECUA... | 3 |
| UNITED STATES DEPARTMENT OF AGRICULTURE... | 3 |
| UNITED STATES DEPARTMENT OF THE INTERIO... | 3 |