Questions and Answers
What is the primary factor that determines the type of veld, specifically sweetveld or sourveld?
Rainfall
What is the result of high rainfall on the soil in sourveld areas?
Soil leaching and low pH
Why are sweetveld grasses more palatable than sourveld grasses?
Higher nutritional value and fertility
What is the primary reason for the unpalatability of sourveld grasses during winter?
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What is the main characteristic of mixed veld?
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Why is sweetveld more prone to overgrazing?
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What type of veld is typically found in areas with low rainfall and mild winters?
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What is the name given to the study of how organisms interact with each other and their physical environment?
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What is the main difference between sweetveld and sourveld?
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Sourveld is more prone to overgrazing than sweetveld.
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What is the name of the type of veld that occurs in areas with high rainfall and cold winters?
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The soil in sourveld areas has a ______________ pH.
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Match the following types of veld with their characteristics:
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What happens to the nutrients in sweetveld grasses during mild winters?
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Dry woodland and karoo are examples of ______________ veld.
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Mixed veld is a type of veld that only occurs in areas with high rainfall.
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Study Notes
Ecology and Veld Types
- Ecology is the study of how organisms interact with each other and their physical environment.
- Veld types are classified based on palatability, which is affected by temperature and rainfall.
Sweetveld
- Sweetveld is a type of veld that is palatable and occurs in areas with low rainfall and mild winters.
- The soil in sweetveld areas has a high fertility status due to minimal leaching, resulting in grasses with high nutritional value.
- Little nutrients are stored in the roots during mild winters, making the grass palatable even in winter.
- Examples of sweetveld include dry woodland and karoo.
Sourveld
- Sourveld is a type of veld that is unpalatable, particularly in winter, and occurs in areas with high rainfall and cold winters.
- The soil in sourveld areas is poor and has a low pH due to leaching over many years.
- Grasses in sourveld areas are poor in nutrients and withdraw nutrients from leaves to store in roots to survive severe winters.
- This makes the grass unpalatable.
Mixed Veld
- Mixed veld is an intermediate form between sweetveld and sourveld, with characteristics of both.
- Sweetveld grasses occur in protected areas with fertile soil, such as lower lying parts and next to rivers.
- Sourveld grasses occur in open areas in mixed veld.
Ecology and Veld Types
- Ecology is the study of how organisms interact with each other and their physical environment.
- Veld types are classified based on palatability, which is affected by temperature and rainfall.
Sweetveld
- Sweetveld is a type of veld that is palatable and occurs in areas with low rainfall and mild winters.
- The soil in sweetveld areas has a high fertility status due to minimal leaching, resulting in grasses with high nutritional value.
- Little nutrients are stored in the roots during mild winters, making the grass palatable even in winter.
- Examples of sweetveld include dry woodland and karoo.
Sourveld
- Sourveld is a type of veld that is unpalatable, particularly in winter, and occurs in areas with high rainfall and cold winters.
- The soil in sourveld areas is poor and has a low pH due to leaching over many years.
- Grasses in sourveld areas are poor in nutrients and withdraw nutrients from leaves to store in roots to survive severe winters.
- This makes the grass unpalatable.
Mixed Veld
- Mixed veld is an intermediate form between sweetveld and sourveld, with characteristics of both.
- Sweetveld grasses occur in protected areas with fertile soil, such as lower lying parts and next to rivers.
- Sourveld grasses occur in open areas in mixed veld.
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Description
Learn about the impact of environment on sustainable livestock production, ecology, and the characteristics of sweetveld and sourveld in agriculture.