Arithmetic Density of Population:
Arithmetic density of population refers to the average number of individuals per unit of land area. It is calculated by dividing the total population of a particular region by its land area. This measure provides a general understanding of population distribution and overcrowding in a given area.

Agricultural Density of Population:
Agricultural density of population, on the other hand, focuses specifically on the relationship between the number of farmers or agricultural workers and the amount of arable land in a region. It is calculated by dividing the total number of farmers by the total amount of arable land. This measure provides insights into the level of agricultural activity and the dependence on agriculture within a population.

Differences between Arithmetic and Agricultural Density of Population:

1. Definition and Calculation:
- Arithmetic density: Average number of individuals per unit of land area.
- Agricultural density: Number of farmers or agricultural workers per unit of arable land.

2. Focus:
- Arithmetic density: Provides a general understanding of population distribution and overcrowding.
- Agricultural density: Focuses on the relationship between farmers and arable land, indicating the level of agricultural activity.

3. Units of Measurement:
- Arithmetic density: Measured in individuals per square kilometer or square mile.
- Agricultural density: Measured in farmers per hectare or acre of arable land.

4. Purpose:
- Arithmetic density: Helps in assessing population distribution, urbanization, and potential overcrowding.
- Agricultural density: Assists in understanding the level of agricultural development, productivity, and the reliance on agriculture within a population.

5. Factors Considered:
- Arithmetic density: Considers the total population and land area of a region.
- Agricultural density: Considers the number of farmers or agricultural workers and the amount of arable land.

6. Implications:
- Arithmetic density: Higher arithmetic density may indicate a densely populated or urbanized area.
- Agricultural density: Higher agricultural density may suggest a greater reliance on agriculture and potentially lower levels of industrialization.

In summary, arithmetic density of population is a measure of general population distribution, while agricultural density focuses on the relationship between farmers and arable land. Both measures provide valuable insights into different aspects of a population and its characteristics.