Population and the environment Flashcards
agricultural activity
the ratio of useful output (yield) to input, showing the efficency of a farm
arable farming
growing crops and plant-based foods
asylum seekers
people fleeing their country of residence for international protection by another government
biologically transmitted diseases
a disease that is passed on by a pathogen (e.g a virus) causing illness e.g. malaria
boserups theory
no matter how large the population grows, we will discover new ways to sustain food supplies
commercial farming
agriculture with the intention of providing yields that can be sold commercially, making a profit
cover crop
a crop with a large surface area, used to cover a bare field to reduce soil erosion and maintain the structure of the topsoil
crop yield
the amount of grains, vegetables or fruits produced from a unit area of land
demographic transition model
a model describing overall population change. mortality and fertility rates over time
density
the number of people per unit area (often per km2)
desertification
fertile land becomes dry and desert-like, reduicing in productivity and vulnerable to erosion
development process
the process of a society advancing over time through technological improvements, changes in knowledge and attitudes or improving the efficiency of industrial processes
ecological footprint
the amount of resources used in relation to the available resources on earth. a footprint large than 1 means consumption is greater than the available resources on earth, making it unsustainable living
economic migrants
the movement of an individual to improve their financial wealth and quality of living
