Lecture on Types of Lands Between Rivers

Key Definitions

• Doab: Land between two rivers. Examples:
  • Chaj Doab – Between the rivers Chenab and Jhelum.
  • Rechna Doab – Between the rivers Ravi and Chenab.
  • Bari Doab – Between the rivers Ravi and Beas.

Mnemonic for Remembering Doabs

• Mnemonic: So Called Respectable Businessman
  • S: Sutlej (Beas-Sutlej Doab)
  • C: Chenab (Ravi-Chenab Doab)
  • R: Ravi (Chenab-Ravi Doab)
  • B: Beas (Ravi-Beas Doab)

Importance of Practice

• Memorization requires practice.
• Lack of practice leads to failure and disappointment.
• Intentional study and repetition are crucial.

Types of Plains Between Rivers

• Active Flood Plain: Low-lying area subject to annual flooding. Common in lower plains.

  • Upper Indus Plain – Higher elevation, less frequent floods than lower plains.
  • Lower Indus Plain – Prone to annual flooding.

• Old Flood Plain: Higher elevation with rare floods.

  • Less prone to flooding compared to active flood plains.

• Alluvial Terrace: Elevated and safe from frequent floods.

• Scarp: Marks the boundary between old flood plain and alluvial terrace.

Understanding the Scarp

• Scarp: Slope that separates Old Flood Plain from Alluvial Terrace.
• Importance of recognizing scarp for construction and habitation safety.

Regions and Specific Doabs

• Ghanche Bar: Specific elevated region.
• Karna Bar: Another specific area with unique terrain.
• Neeli Bar: Known for its distinct geographical features.
• Sandul Bar: Another notable terrain feature.

Mnemonic for Remembering Regions

• Mnemonic: Horse Color Neela Safed (Ghoda Kala Neela Safed)
  • G: Ghanche Bar
  • K: Karna Bar
  • N: Neeli Bar
  • S: Sandul Bar

Examination Tips

• Essential to know two regions or bars for exams.
• Even if rarely asked, understanding these concepts helps with comprehensive learning.

Safety in Construction

• Best areas for building homes or industries are elevated, safe from floods.
• Always consider the type of land between rivers for safety and construction viability.

Practical Application

• Recognize the importance of topography in planning and infrastructure.
• Relate theory to practical safety measures in real-world applications.