The Karbi-Meghalaya plateau is an extension of the main Indian peninsular plateau and was originally divided into two plateaus: the Karbi Anglong Plateau and the Meghalaya Plateau. Garo, Khasi, and Jaintia Hills are historic divisions of the Meghalaya plateau. The Karbi Plateau is pear-shaped and covers around 7000 km. It is connected to the Meghalaya plateau proper to the south by a region of extremely denuded and depressed senile terrain. This article will explain to you about the Karbi Meghalaya plateau which will be helpful in Geography preparation for the UPSC Civil service exam.

Karbi Meghalaya plateau

• Beyond the Rajmahal hills, the peninsular plateau stretches eastward to Meghalaya or the Shillong plateau.
• This plateau is separated from the main block by the Garo-Rajmahal Gap.
• The Karbi Anglong plateau is an extension of the Indian peninsular plateau in Assam, India's North-Eastern state.
• This chasm was created via down-faulting (normal fault: a block of earth slides downwards). Sediments deposited by the Ganga and Brahmaputra later filled it.
• Archaean quartzites, shales, and schists make up the plateau.
• The plateau descends down to the north to the Brahmaputra river and south to the Surma and Meghna valleys.
• Its western border is roughly parallel to the border with Bangladesh.
• Shillong (1,961 m) is the plateau's highest peak.
• The plateaus of Meghalaya and Karbi Anglong are separated from the main Peninsular Block.
• The Meghalaya plateau is separated into three sections:
  • The Garo Hills
  • The Khasi Hills
  • The Jaintia Hills

Karbi Meghalaya plateau - Formation

• It is thought that a massive fault was formed between the Rajmahal hills and the Karbi-Meghalaya plateau as a result of the push exerted by the northeastward movement of the Indian plate during the Himalayan origin.
• Later, the depositional action of various rivers filled in the depression.
• The Meghalaya and Karbi Anglong plateaus are still separated from the main Peninsular block today.
• The South-West monsoon brings the most rain to this region. It is situated on India's north-eastern plateau.

Karbi Meghalaya plateau - Significance

• In reality, it is a continuation of the main Peninsular plateau.
• It is thought that a massive fault was formed between the Rajmahal hills and the Meghalaya plateau as a result of the force exerted by the northeastward migration of the Indian plate during the Himalayan origin.
• The Meghalaya plateau, like the Chotanagpur plateau, is rich in mineral resources such as coal, iron ore, sillimanite, limestone, and uranium.
• The southwest monsoon brings the most rain to this region. As a result, the surface of the Meghalaya plateau is heavily degraded.
• Cherrapunji has a stark, stony terrain with no permanent flora cover.

Conclusion

In actuality, the Karbi-Meghalaya plateau is an extension of the main Indian peninsular plateau. The stress exerted by the northeastward movement of the Indian plate during the Himalayan origin is supposed to have generated a large fault between the Rajmahal hills and the Meghalaya plateau.

FAQs

Q1: What is the Karbi Meghalaya Plateau?

Q2: Which states are part of the Karbi Meghalaya Plateau?

Q3: What are the major rivers flowing through the Karbi Meghalaya Plateau?

Q4: What types of vegetation are found on the Karbi Meghalaya Plateau?

Q5: How does the climate affect the Karbi Meghalaya Plateau?

MCQs

1. Which states comprise the Karbi Meghalaya Plateau?

a) Assam and Arunachal Pradesh

b) Meghalaya and Nagaland

c) Assam and Meghalaya

d) Manipur and Mizoram

2. What type of climate characterizes the Karbi Meghalaya Plateau?

a) Tropical rainforest climate

b) Desert climate

c) Humid subtropical climate

d) Subtropical highland climate

3. Which river is NOT associated with the Karbi Meghalaya Plateau?

a) Dhansiri

b) Brahmaputra

c) Kopili

d) Jinjiram

4. What type of vegetation is prevalent in the Karbi Meghalaya Plateau?

a) Deciduous forest

b) Tropical rainforest

c) Coniferous forest

d) Grassland

5. What is a major environmental concern for the Karbi Meghalaya Plateau?

a) Urbanization

b) Soil erosion

c) Desertification

d) Deforestation

GS Mains Questions and Model Answers

Q1: Discuss the ecological significance of the Karbi Meghalaya Plateau.

Answer: The Karbi Meghalaya Plateau holds immense ecological significance due to its rich biodiversity and unique ecosystems. The plateau supports various flora and fauna, including several endemic species, contributing to the region's ecological balance. The tropical and subtropical forests play a vital role in carbon sequestration, helping mitigate climate change effects. Moreover, the plateau's rivers, such as the Kopili and Dhansiri, provide essential water resources for agriculture and local communities. Protecting this biodiversity hotspot is crucial for maintaining environmental stability and promoting sustainable development.

Q2: Analyze the impact of climate change on the Karbi Meghalaya Plateau.

Answer: Climate change poses significant challenges to the Karbi Meghalaya Plateau, altering weather patterns and affecting local ecosystems. Increased temperatures and erratic rainfall can lead to changes in vegetation types and biodiversity loss. The plateau's heavy reliance on monsoon rains for water supply makes it vulnerable to droughts and floods, jeopardizing agriculture and livelihoods. Additionally, rising temperatures can disrupt species distribution and migration patterns, further threatening the delicate ecological balance. Addressing these impacts through adaptive management and conservation strategies is essential for the sustainability of the plateau's environment.

Q3: Evaluate the role of rivers in the socio-economic development of the Karbi Meghalaya Plateau.

Answer: Rivers such as the Kopili and Dhansiri are crucial for the socio-economic development of the Karbi Meghalaya Plateau. They provide essential water resources for agriculture, enabling the cultivation of crops that sustain local communities. Additionally, these rivers facilitate transportation and trade, connecting remote areas to markets. The rich biodiversity in the rivers supports fisheries, providing livelihoods to many families. However, with increasing human activities, pollution and over-extraction threaten these water bodies. Sustainable management practices are vital to ensure that the rivers continue to support the plateau's socio-economic development without compromising their ecological health.

Previous Year Questions on  Karbi Meghalya Plateau

1. UPSC CSE 2021

Question: "Examine the ecological challenges facing the Karbi Meghalaya Plateau."

Answer: The Karbi Meghalaya Plateau faces several ecological challenges, including deforestation, soil erosion, and biodiversity loss. Deforestation, driven by agricultural expansion and illegal logging, threatens the unique flora and fauna of the region. Soil erosion, exacerbated by heavy rainfall and poor land management practices, leads to decreased agricultural productivity and habitat destruction. Additionally, climate change impacts, such as altered rainfall patterns, further stress the plateau's ecosystems. Addressing these challenges requires a comprehensive approach involving conservation efforts, sustainable land management practices, and community engagement to protect the ecological integrity of the plateau.

2. UPSC CSE 2022

Question: "Discuss the role of the Karbi Meghalaya Plateau in the context of India’s environmental conservation efforts."

Answer: The Karbi Meghalaya Plateau is pivotal to India's environmental conservation efforts due to its rich biodiversity and ecological significance. It serves as a habitat for numerous endemic species, making its conservation essential for preserving India's natural heritage. The plateau plays a crucial role in maintaining regional climate stability and hydrological cycles, which are vital for agricultural productivity and water security. Recognizing its ecological importance, various conservation initiatives are being implemented, including the establishment of protected areas and community-led conservation programs. These efforts aim to balance development with ecological sustainability, ensuring the preservation of the plateau's unique ecosystems for future generations.