The climate that requires more irrigation depends primarily on the following factors:

1. Dry climate: Dry areas usually experience scarce precipitation and therefore require irrigation to provide sufficient moisture for crop growth. For example, desert or semi-arid areas often require heavy irrigation.

2. High-temperature climate: In high-temperature climates, water evaporates quickly, causing the soil to dry quickly. In this case, irrigation is essential to keep the soil moist and support plant growth. Hot climates are often accompanied by increased evaporation and transpiration, which makes plants more susceptible to losing water.

3. Insufficient seasonal precipitation: Some areas may have seasonal precipitation, that is, there is a lot of precipitation during certain periods and scarce precipitation during other periods. In this case, irrigation can provide crops with the moisture they need during periods of scarce precipitation.

4. High altitudes: High altitudes typically have shorter growing seasons and colder conditions, which can lead to frozen soil or insufficient precipitation. In these areas, irrigation can help extend the growing season and provide necessary moisture.

In summary, climates requiring irrigation mainly include those areas with scarce precipitation, high temperatures, insufficient seasonal precipitation, or high altitudes. However, irrigation also requires careful management to ensure rational use of water resources and avoid water waste and ecological environmental damage.