分面浏览：学科主题 |
| 当前检索式 | ((ALL：net primary productivity ( NPP))) |
| 限定条件 | ((学科主题：Environmental Sciences & Ecology)) |
| Environmental Sciences & Ecology 6 | Evolutionary Biology 2 | Biodiversity & Conservation 1 |
| Geology 1 | Meteorology & Atmospheric Sciences 1 | Water Resources 1 |
