| Name | Global sowing and harvesting windows of major crops |
| DOI | doi:10.20783/DIAS.546 |
| Metadata Identifier | global_crop_calendar_200020230727093837-DIAS20221121113753-en |
| Name | Toshichika Iizumi |
|---|---|
| Organization | Institute for Agro-Environmental Sciences, National Agriculture and Food Research Institute |
| Address | 3-1-3 Kannondai, Tsukuba, Ibaraki, 305-8604, Japan |
| TEL | 029-838-8435 |
| iizumit@affrc.go.jp |
| Name | Toshichika Iizumi |
|---|---|
| Organization | Institute for Agro-Environmental Sciences, National Agriculture and Food Research Institute |
| iizumit@affrc.go.jp |
| Name | Toshichika Iizumi |
|---|---|
| Organization | Institute for Agro-Environmental Sciences, National Agriculture and Food Research Institute |
| iizumit@affrc.go.jp |
Using daily weather data for the period 1996–2005 as the inputs to a rule-based model, we derive calendars for maize, rice, winter and spring wheat and soybeans around the year 2000 with a spatial resolution of 0.5° in latitude and longitude. Winter and spring wheat and rainfed versus irrigated conditions are differentiated. Separate calendars for rainfed and irrigated conditions and three representative varieties (short-, medium- and long-season varieties) are estimated. The daily probabilities of sowing and harvesting derived using the model can be converted into sowing and harvesting windows, respectively, with user-defined thresholds.
| North bound latitude | 90 |
| West bound longitude | -180 |
| Eastbound longitude | 180 |
| South bound latitude | -90 |
| Dimension Name | Dimension Size (slice number of the dimension) | Resolution Unit |
|---|---|---|
| column | 720 | 0.5 (deg) |
| row | 360 | 0.5 (day) |
| vertical | 1 | 1 (level) |
| Keyword Type | Keyword | Keyword thesaurus Name |
|---|---|---|
| theme | Agriculture > Agricultural Plant Science > Cropping Systems | GCMD_science |
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File download : https://data.diasjp.net/dl/storages/filelist/dataset:546
The rule-based model determines the potential sowing and harvesting dates of a crop of interest at a given location based on the sequence of rules and a 10-yr period of daily weather data. The rules describe climatic requirements in terms of heat, chilling, moisture and field workability. Rainfed and irrigated conditions are separately considered. The potential sowing date indicates days with a higher probability of completing the annual crop life cycle under a given weather pattern and soil hydrologic condition.
We compared the SAGE and MIRCA2000 datasets with the modeled sowing and harvesting windows. The global data reported in USDA (1994) were also used because clear distinctions between multiple cropping seasons were available.
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