20.3.1.a - Lysimeter Method
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Practice Questions
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What is a lysimeter?
💡 Hint: Think about its purpose in water measurement.
Name one advantage of using lysimeters.
💡 Hint: Consider what accuracy means in water management.
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Interactive Quizzes
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What is the primary function of a lysimeter?
💡 Hint: Think about its purpose.
True or False: Lysimeters are suitable for large-scale agricultural applications.
💡 Hint: Consider their practicality.
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Challenge Problems
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A farmer uses two lysimeters to measure evapotranspiration of two different crops over a month. The first lysimeter recorded a weight loss of 900 kg with 300 kg of rainfall and 100 kg of drainage. The second lysimeter recorded a weight loss of 700 kg with 200 kg rainfall and 80 kg drainage. Calculate the ET for both crops. Which crop experiences more evapotranspiration?
💡 Hint: Use the weight balance formula!
Discuss the implications of using lysimeters for calculating regional evapotranspiration under different climatic conditions. How might results vary?
💡 Hint: Consider how different climates impact crop water demands.
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