Development of Watershed Area — Chapter Summary
Maharashtra Board · Class 10 · Water Security
Summary of Development of Watershed Area for Maharashtra Board Class 10 Water Security. Part of the Maharashtra Board Class 10 Water Security syllabus.
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Overview
Notice how rainwater moves from higher land through small streams and then through a nallah. That whole natural drainage area is called a watershed area. Watershed development protects soil, slows water flow, helps water seep into the ground, and increases water available for wells and farming. The
Key Concepts
A watershed area is the whole
A watershed area is the whole area from which water naturally flows from mountains through small streams and a nallah. Such an area can range from 50
A full survey of the area
A full survey of the area is necessary before work begins. Treatment should start from the highest point in the selected area, so rainwater can slowly
CCT trenches are dug according
CCT trenches are dug according to the slope of hill land to block rainwater and let it seep in. On steep land, trenches are dug nearer together. On ge
Small stone causeways are placed one
Small stone causeways are placed one below the other along the stream slope. Their base level must match the head level of the lower causeway. The hei
Earthen or cement causeways are built
Earthen or cement causeways are built across a nala to store rainwater. Earthen causeways can be up to 4 m high. For cement stone bunding, the watersh
Learning Objectives
- Define a watershed area clearly.
- Understand why watershed development is needed.
- Identify major treatment methods used in watershed areas.
- Distinguish between different water conservation structures.
- Explain how cultivation methods can help block water and seep water.
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Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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