Table 3 The number of soybean samples collected by ground survey in different provinces and years.
From: Mapping annual 10-m soybean cropland with spatiotemporal sample migration
Province | 2019 | 2020 | 2021 | 2022 |
|---|---|---|---|---|
Heilongjiang | 1737 | 500 | — | 226 |
Jilin | 141 | 3694 | — | — |
Liaoning | 183 | 422 | — | — |
Inner Mongolia | 825 | — | 1393 | — |
Henan | — | 1967 | — | — |
Anhui | 919 | 341 | — | — |
Chongqing | — | — | — | 564 |
