WikiWealth

The lack of arable land in Hong Kong causes businesses to import necessary supplies from other countries in order to maintain their growth rates.

"Land which is unsuitable for arable farming usually has at least one of the following deficiencies: no source of fresh water; too hot (desert); too cold (Arctic); too rocky; too mountainous; too salty; too rainy; too snowy; too polluted; or too nutrient poor. Clouds may block the sunlight plants need for photosynthesis, reducing productivity. Plants can starve without light. Starvation and nomadism often exists on marginally arable land. Non-arable land is sometimes called wasteland, badlands, worthless or no pony's land.

However, non-arable land can be converted into arable land. New arable land makes more food, and can reduce starvation. This outcome also makes a country more self-sufficient and politically independent, because food importation is reduced. Making non-arable land arable often involves digging new irrigation canals and new wells, aqueducts, desalination plants, planting trees for shade in the desert, hydroponics, fertilizer, nitrogen fertilizer, pesticides, reverse osmosis water processors, PET film insulation or other insulation against heat and cold, digging ditches and hills for protection against the wind, and greenhouses with internal light and heat for protection against the cold outside and to provide light in cloudy areas. This process is often extremely expensive.

Countries have to rely on other economies for food and mineral resources. These goods cost money that would otherwise be spent on more productive economic activities."

Source: http://en.wikipedia.org/wiki/Arable_land"Little Arable Land" will have a long-term negative impact on this entity, which subtracts from the entity's value.