| Variable Name | Variable Abbreviation | Variable Definition | Variable Meaning | Data Sources |
| Temperature | Temp | If temp < 15˚C, Value = 0 If temp = 15˚C, Value = 1 If temp > 16˚C, Value = 2 ∙∙∙ | According to the minimum temperature suitable for seed growth, the unit ˚C is 1, the larger the value, the more suitable for seed growth. | Chinese Research Data Services (CNRDS) |
| Daily Precipitation | D-Precipitation | Daily precipitation (mm/Day) | Reflecting rainfall. | https://www.tianqi24.com/historycity/ |
| Solar Radiation | SR | Sunny = 4; Cloudy = 3; Overcast = 2; rain or snow = 1; If there are multiple weather conditions, take the worst-case weather as the value. | Reflecting solar radiation. | Chinese Research Data Services (CNRDS) |
| Diffusion Probability | D-probability | the maximum probability calculated according to this formula 2 |
| Calculated according to this Formula 2. |
| Accumulated Dispersal Times | APt | Accumulated dispersal times at each time point | A seed maturity is recorded as a dispersal, reflecting the cumulative dispersal times at each time point. | Calculated based on plant characteristics. |
| Land Carrying Capacity | LCC | (the area of a circle using the distance with the highest dispersal rate as the radius)/ 1 hectare | Reflecting the impact of dispersal on land environment. | The distance with the highest dispersal rate is calculated according to this Formula 2. |