m to 2,670 m above sea level); average annual temperature varies
with altitude from 23 to 17 degrees centigrade but is generally
moderate as the average altitude is about 1,700 m; average annual
rainfall is about 150 cm; wet seasons from February to May and
September to November, and dry seasons from June to August and
December to January

Terrain:
hilly and mountainous, dropping to a plateau in east, some plains

Elevation extremes:
lowest point: Lake Tanganyika 772 m
highest point: Mount Heha 2,670 m

Natural resources:
nickel, uranium, rare earth oxides, peat, cobalt, copper, platinum
(not yet exploited), vanadium, arable land, hydropower

Land use:
arable land: 35.05%
permanent crops: 14.02%
other: 50.93% (2001)

Irrigated land:
740 sq km (1998 est.)

Natural hazards:
flooding, landslides, drought

Environment - current issues:
soil erosion as a result of overgrazing and the expansion of
agriculture into marginal lands; deforestation (little forested land
remains because of uncontrolled cutting of trees for fuel); habitat
loss threatens wildlife populations

Environment - international agreements:
party to: Biodiversity, Climate Change, Climate Change-Kyoto
Protocol, Desertification, Endangered Species, Hazardous Wastes,
Ozone Layer Protection
signed, but not ratified: Law of the Sea

Geography - note:
landlocked; straddles crest of the Nile-Congo watershed; the
Kagera, which drains into Lake Victoria, is the most remote
headstream of the White Nile

People Burundi

Population:
6,231,221
note: estimates for this country explicitly take into account the
effects of excess mortality due to AIDS; this can result in lower
life expectancy, higher infant mortality and death rates, lower
population and growth rates, and changes in the distribution of
population by age and sex than would otherwise be expected (July
2004 est.)

Age structure:
0-14 years: 46.4% (male 1,459,251; female 1,430,332)
15-64 years: 50.9% (male 1,566,274; female 1,607,705)
65 years and over: 2.7% (male 66,306; female 101,353) (2004 est.)

Median age:
total: 16.5 years
male: 16.1 years
female: 16.8 years (2004 est.)

Population growth rate:
2.2% (2004 est.)

Birth rate:
39.68 births/1,000 population (2004 est.)

Death rate:
17.61 deaths/1,000 population (2004 est.)

Net migration rate:
-0.06 migrant(s)/1,000 population (2004 e