Questions and Answers
Que é un dos factores que condicionan a práctica da agricultura?
O clima
Que tipo de cultivo se pode practicar nas ladeiras das montañas?
Bancais
Que porcentaxe das calorías que consumimos veñen só de catro especies?
60%
Que é un exemplo de paisaxe agraria?
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Que é unha característica das parcelas de cultivo?
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Que é unha característica dos campos cerrados?
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Que é o nome dado a unha paisaxe agraria caracterizada por campos abertos?
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Que é un exemplo de lugar onde se practica a agricultura en condicións extremas?
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Que tipo de parcelas existen?
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Que se entende por monocultivo?
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Que tipo de cultivos son as oliveiras?
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Que caracteriza a agricultura intensiva?
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Que tipo de poboamento é aquele no que as vivendas se agrupan nun lugar en concreto?
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Que caracteriza os cultivos de secaño?
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Que tipo de técnicas se utilizan nalgunhas zonas?
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Que pasa cando a terra permanece en barbeito?
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Study Notes
Agricultural Limitations
- Despite extreme temperatures (50°C) and low rainfall (100mm/year) in the Negev Desert, Israel, agriculture is possible and even exports food.
- Factors that condition agriculture are:
- Climate: extreme temperatures and humidity affect agriculture, but invernaderos (greenhouses) can provide optimal conditions.
- Relief: altitude and slope affect agriculture, with chairas and vales being more suitable.
- Soil: texture and composition determine the types of crops that can be grown, but humans can correct these conditions or use artificial soils.
Agricultural Landscape
- The need to ensure food for the population has led to the extension of industrial monocultures, with 60% of calories coming from just four species (rice, wheat, corn, and potatoes).
- This has led to the creation of "green deserts" that put biodiversity at risk.
Crop Plots
- Plots can be small (minifundios) or large (latifundios) and have regular or irregular shapes.
- Plots can be separated by walls, hedges, or fences, creating a closed landscape (bocage) or remain open.
- Plots can be used for agriculture, livestock, or forestry, and properties may change activities over time.
Farming Practices
- Farming practices vary according to:
- Crop variety: specializing in one product (monoculture) or growing multiple species (polyculture).
- Crop type: herbaceous (cereals) or woody (arbustive or arboreal).
- Intensity: intensive farming aims for maximum yield, while extensive farming depends on the cultivated area.
- Irrigation systems: rainfed or irrigated crops.
- Techniques: traditional or modern, using machines and technology to increase productivity.
Rural Settlements
- Rural settlements can be:
- Concentrated: a group of houses in one location, leaving the rest for cultivation.
- Dispersed: scattered houses throughout the territory, near each family's farm.
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Description
A agricultura é posible mesmo nas condicións máis adversas, como no deserto do Neguev en Israel. Pero, ¿qué factores a condicionan? Neste quiz, exploraos os desafíos e condicións que afectan a produción de alimentos.
