Human geography

Human geography

Geographical events related to human actions.

Industry: Geography

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Human geography

agriculture

Geography; Human geography

Used in a wide sense to include the growing of crops and the rearing of livestock - the whole science and practice of farming. However, some restrict the term to the growing of crops alone.

agrochemicals

Geography; Human geography

Chemical inputs in farming that are used to increase productivity by fertilizing the soil, and controlling pests and diseases (pesticides, herbicides and fungicides). There is increasing concern ...

The integrated use of land for agriculture and forestry. For example, the phased planting and felling of windbreaks in agricultural areas prone to wind erosion, or the planting of trees on farmland ...

A-horizon

Geography; Human geography

The uppermost layer of topsoil in a well-developed or mature soil profile. It is characterized by well-weathered parent material and a relatively large amount of humus. The A-horizon is generally ...

aid

Geography; Human geography

Assistance extended by the more wealthy nations (see medcs) to the ledcs of the third world mainly to encourage development and to help overcome the obstacles to it. Aid can take a variety of forms, ...

acquired immune deficiency syndrome (AIDS)

Geography; Human geography

A fatal disease currently spreading at an exponential growth rate and which already seriously threatens populations in certain parts of the world, most notably in sub-Saharan Africa. Elsewhere, India ...

air mass

Geography; Human geography

A large and essentially homogeneous mass of air, often many thousands of km2 in area, characterized by more or less uniform temperature and humidity. Air masses originate in source-regions (normally ...