Sustainable Forest Management: Balancing Use and Preservation
Sustainable use of forests
The sustainable use of forests is:
Increase the efficiency of industries, improving transport networks and eliminate the waste of wood.
Reduce paper usage and increase recycling.
Reduce fuel consumption by replacing traditional stoves, which have a yield of 10%, with more efficient ones made of materials available locally and cheaper.
Increase forest plantation high performance, designed to produce for human consumption on marginal lands or over-exploited.
Read MoreBiodiversity: Concepts, Levels, and Threats
1. Concept and Levels of Biodiversity
What is Biodiversity?
In 1988, biologist Edward O. Wilson coined the term “biodiversity” to describe the variety of life on Earth. This concept encompasses three main aspects:
- Genetic Diversity: The variability in the genetic information within individuals of the same species.
- Species Diversity: The number and variety of species present in a specific region or across the biosphere.
- Ecosystem Diversity: The variety of biological communities and their interactions
Demography Vocabulary: A Comprehensive Guide
Demography Vocabulary
Key Terms and Concepts
B
Baby Boom
A period of strong population growth due to a dramatic rise in the birth rate. For example, Spain experienced a baby boom in the 1960s.
Birth Rate
The number of births per thousand women of childbearing age (15-49 years) over a specific period, usually one year, in a given territory. Also known as the fertility rate.
Crude Birth Rate
Calculated by dividing the number of births in a year by the estimated average population for that year, multiplied
Read MoreUrban Development: A Historical Perspective
1. The Preindustrial City
The Roman City
Rome created a dense urban network and hierarchy, connected by roads. Prominent cities included Emerita Augusta (Mérida), Toletum (Toledo), Tarraco (Tarragona), and Caesaragusta (Zaragoza).
The Medieval City
During the 9th and 10th centuries, while Christians in the north lived in rural areas or scattered villages, the Arabs established numerous cities.
The Modern City
In the 16th and 17th centuries, cities lost political influence due to state centralization.
Read MoreEconomic and Social Crisis in Medieval Iberia
Economic and Social Crisis in Medieval Iberia
The Demographic Crisis
Iberia underwent a process of continuous growth since the eleventh century. This growth led to the recruitment and exploitation of lands conquered from the Muslims and fueled the wars of conquest. At the beginning of the 14th century, stagnation occurred, marked by crop failures, land abandonment, and food shortages.
In 1348-1351, the Black Death, originating from Asia, penetrated the Iberian Peninsula along the Mediterranean coast
Read MoreUrban Morphology: City Shapes, Plans, and Networks
Urban Morphology: City Shapes and Layouts
Defining City Morphology
Urban morphology studies the shape of a city as a whole, describing its physical form and structure.
Factors Shaping City Morphology
Two primary aspects shape a city’s morphology:
- Street Layout and Features: This includes the arrangement, width, length, and curvature of streets, impacting the city’s overall organization.
- Buildings: Building facades contribute significantly to a neighborhood’s character and the city’s visual identity.