Geography of Laos


Laos is a landlocked nation in north-eastern Central Southeast Asia. It comprises of a narrow, peninsula-like section extending to the southeast from an irregularly shaped, northern component. Overall, the nation's length from northwest to southeast is around 650 miles (1,050 km). Vientiane, the nation's capital, is situated in the northern region of the country along the Mekong River.

With its forested highlands, upland plateaus, and lowland plains, Laos' geologically diverse geography supports an equally diversified people that is mostly brought together through agriculture, particularly the growing of rice.

Physical Features

In the middle of Southeast Asia, Laos is roughly 236,800 square kilometers in size. China borders it to the north, Vietnam to the northeast and east, Cambodia to the south, Thailand to the west, and Myanmar (Burma) to the northwest. Laos' harsh, forested mountains, which reach a maximum elevation of 9,245 feet (2,818 meters) above sea level at Mount Bia in the north and are a major obstacle to travel everywhere, dominate the country's terrain. There are numerous minor ranges, but the main range is located along a northwest-southeast axis and is a section of the Annamese Cordillera (Chaîne Annamitique).

The Plain of Jars, also known as Thông Haihin, is a communications hub located on the Xiangkhoang Plateau in north-central Laos. Its name comes from the vast prehistoric stone jars that were discovered there. There are caverns and severely degraded limestone pinnacles in the karst terrain of the central provinces of Bolikhamxay and Khammouan. At an elevation of roughly 3,600 feet (1,100 meters) in the south, the Bolovens Plateau is covered in open woods and has typically fertile soil. Only a small portion of the Mekong River's eastern bank is covered in large lowlands.

The Annamite Range in the northeast and east and the Luang Prabang Range in the northwest are two mountain ranges that are characteristically known for their steep terrain. Laos' topography is predominantly mountainous. Elevations are normally above 500 meters, and there are few river valleys and little possibilities for agriculture. With the exception of Vientiane's plain and the Plain of Jars on the Xiangkhoang Plateau, the majority of the north of the country is covered by this rugged terrain.

Only around 20% of the land is made up of the Mekong and its tributaries' alluvial plains and terraces. Only 4% of the entire landmass is categorized as arable. As a result of increased swidden, or slash-and-burn, farming and commercial logging since the 1970s, the area of forested land has drastically decreased.

Climate

Laos experiences the usual tropical monsoon (wet-dry) climate of the area, while the highlands offer considerable temperature variance. The Bolovens Plateau experiences rainfall totals of about 160 inches (4,100 mm) throughout the rainy season (May to October), with an average rainfall of 50 to 90 inches (1,300 to 2,300 mm). The northeast monsoon rules the dry season (November to April).

In the chilly months of December through February, minimum temperatures often range between 60 and 70 °F (16 and 21 °C), rising to highs of more than 90 °F (32 °C) in March and April, just before the onset of the rainy season. The typical temperature during the wet season is 80 °F (27 °C). Laos is very susceptible to the effects of climate change, and nearly all of its provinces are in high danger.

Flora and Fauna

In the north of Laos, there are tropical rainforests with broad-leaved evergreens, and in the south, there are monsoon forests with mixed evergreen and deciduous species. The ground is covered in a long, coarse grass called tranh in the monsoon forest regions, and there is a lot of bamboo, brush, and wild bananas. The trees are primarily secondary growth. A huge variety of palm and orchid species can be found in Laos. Nearly 200 kinds of animals, almost the same number of reptiles and amphibians, and about 700 different bird species live in the forests and grasslands.

Deer, bears, monkeys, and gaurs (wild oxen) are examples of common mammals. Several species of wild oxen, monkeys, gibbons, elephants, rhinoceroses, and tigers are among the country's endangered mammals. There are lots of geckos, snakes, frogs, and skinks, however numerous kinds of turtles are endangered. Numerous warblers, babblers, woodpeckers, thrushes, as well as a variety of larger raptors, live in the forest's canopy and understory. In the lowlands, there are lots of water birds. Numerous bird species in Laos are under danger, including the majority of hornbills, ibises, and storks.

Drainage

The majority of the country's terrain slopes downward from east to west, and the Tha, Beng, Ou, Ngum, Kading, Bangfai, Banghiang, and Kong are all major tributaries of the Mekong (Mènam Khong). The Mekong forms much of Thailand's border and flows mostly southeast and south through and through western Laos, forming its border with Myanmar. In northern Laos, gorges severely restrict the river's path.

However, by the time it reaches Vientiane, the valley has widened and exposes large areas to flooding when the river overflows its banks, as it did most famously in August 1966. The Ma River, which originates in the northeast, close inside the Vietnam border, is the most significant of the few rivers in eastern Laos that run eastward through cracks in the Annamese Cordillera to reach the Gulf of Tonkin.

Soils

The soils in floodplains are made of alluvium, which rivers deposit, and are either sandy or sandy clay with light colours, or sandy with grey or yellow colours; chemically, these soils are neutral to slightly acidic. In general, crystalline, granitic, schistose, or sandstone parent rock-derived upland soils are more acidic and significantly less fertile. Both basaltic soils on the Bolovens Plateau and laterite (leached and iron-bearing) soils can be found in southern Laos.

Conclusion

Laos has a varied terrain that includes lowland plains, upland plateaus, and wooded highlands. Laos, which is surrounded by China, Vietnam, Cambodia, Thailand, and Myanmar, is dominated by rough, wooded mountains. Its climate can range from a tropical monsoon to highland regions with considerable temperature differences.

Tropical rainforests, a varied flora, and endangered animals can all be found in the nation's ecosystems. Its tributaries and the Mekong River together make up important drainage systems. Laos' geographical features have a significant impact on its environment, agriculture, and biodiversity, especially in light of the problems faced by climate change and a lack of arable land.

Frequently Asked Questions

Where is Laos located?

Laos is a landlocked nation in Central Southeast Asia.

What is the dominant geographical feature of Laos?

The dominant geographical feature of Laos is its forested mountains, which reach their highest point at Mount Bia, and diverse ecosystems like tropical rainforests and monsoon forests.

What is the capital of Laos?

Vientiane is the capital city of Laos, situated along the Mekong River in the northern region of the country.

How does Laos' climate vary?

Laos experiences a tropical monsoon climate with temperature variations in highland regions. The dry season lasts from November to April, while the rainy season occurs from May to October.

What kind of wildlife is found in Laos?

Laos boasts diverse wildlife, including various species of mammals, reptiles, amphibians, birds, and water birds. Endangered species like tigers, elephants, and rhinoceroses are present.

What is the significance of the Mekong River in Laos?

The Mekong River and its tributaries form major drainage systems in Laos, impacting the country's topography and ecosystems.

How does Laos' geography influence its agriculture?

Laos' diverse geography, including forested highlands and fertile plains, supports its predominantly agricultural economy, with rice cultivation being a significant activity.

Updated on: 19-Oct-2023

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