An Expression Of Population Pressure Exerted On Agricultural Land Is (2024)

FAQs

An Expression Of Population Pressure Exerted On Agricultural Land Is? ›

Final answer:

physiological density, an expression of population pressure exerted on agricultural land. Countries differ in physiological density and the contrasts between the crude and physiological densities of countries point up actual settlement pressures that are not revealed by crude densities alone (Table 5.4).

The pressure of population on land resources results in increased land use and increased insecticide use due to increased insect tolerance leading to decreased productivity of cultivated land, increased desert formation, and decreased food supply.

Population pressure refers to the increased demand for resources and space caused by a growing population, which can lead to the need for agricultural practices and settlement.

Malthusianism is the theory that population growth is potentially exponential, according to the Malthusian growth model, while the growth of the food supply or other resources is linear, which eventually reduces living standards to the point of triggering a population decline.

Population pressure, a term summarizing the stress brought about by an excessive population density and its consequences, is used both in conjunction with human overpopulation and with other animal populations that suffer from too many individuals per area (or volume in the case of aquatic organisms).

Roughly 40 million acres—40% of California's land—are used for agriculture.

The standard, or near-average, atmospheric pressure at sea level on the Earth is 1013.25 millibars, or about 14.7 pounds per square inch. The gauge pressure in my automobile tires is a little more than twice that value.

Example Sentences

And after c. 1750, population pressure continued to build up to the present time. But before population pressure became too serious in Europe or Japan, industry developed and absorbed the excess population.

A high-pressure area, high, or anticyclone, is an area near the surface of a planet where the atmospheric pressure is greater than the pressure in the surrounding regions.

How much of the land is populated? ›

This includes areas where people live, work, and grow food. However, not all habitable land is densely populated. The actual percentage of land actively populated by humans (where people actually live and settle) is estimated to be around 3% to 5% of Earth's total land area.

Additionally, as populations increase, more land is used for agricultural activities to grow crops and support livestock. This, in turn, can decrease species populations, geographic ranges, biodiversity, and alter interactions among organisms.

Malthusian population theory suggests that a reduction in the population pressure on existing resources through emigration could trigger a rise in birth and survival rates in the sending population. A demographic response of this type would cancel out or reduce the impact of emigrant loss on long-run population size.

Major farming improvements boosted the world's population by enabling more food growth and transport. Farming's introduction 10,000 years ago boosted food availability, enabling humans to settle and form towns.

Agricultural location theory deals with both the location — allocation process of land uses by farmers, and the spatial organization of agricultural land uses.

Population and Agriculture. It is generally understood that population growth was associated with the emergence of socioeconomic systems that facilitated a higher caloric return per unit of land and the capacity to distribute large quantities of food.

Arithmetic density lets us understand where urbanization is occurring and the pressures people place on land in areas that are not urban but are still very densely populated. Understanding agricultural density lets us keep track of where domestic food sources are and how many farms are in operation.

It reduces the quality and quantity of natural resources through overexploitation, intensive farming and land fragmentation.

To find the agricultural density, divide the area of farmland by the population of farmers in that area, giving you an average of land worked by each farmer.