!! Flashcards
what is land degradation
a decline in land health and productivity
what is deforestation
the removal of trees
What is overgrazing?
When livestock excessively graze an area
what is overcultivation
The use of the same land for the same type of crops too many times
how do agricultural activities contribute to land degradation
unsustainable practices such as excessive irrigation (watering land so much that salt builds up and damages the soil)
causes the water table to rise, bringing salt to the surface & increasing soil salinity
what is overcutting of vegetation
the excessive removal of plants and trees
-environmental impacts
-economic impacts
-social impacts
environmental - changes to nature- such as habitat loss, pollution & extreme weather
economic - effects on jobs, businesses & crops like crop failure
social: how people and communities are effected eg displacement, health issues, food shortages
soil salinity
the accumulation of excess salts in the soil, which can harm plant growth and reduce fertility
threats to biodiversity
-human induced change
-climate change
-urbanisation
carbon footprint
the total amount of greenhouse gases, especially carbon dioxide, released into the atmosphere by human activities
interconnection
the way in which people, places, or systems are linked to eahcother and how they influence and depend on each other
sustainable strategies used to manage salinisation
-preventing loss of native vegetation
-constructing sub-surface drainage systems
-planting salt tolerant, deep rooted plants
climate change
the long-term change in the Earth’s weather patterns
global warming
the gradual increase in Earth’s temperature, mainly caused by human activities like burning fossil fuels
pollution
any substance that is released into the environment that causes damage
biodiversity
all the different kinds of life you’ll find in one area
strategies to adress environmental issues
-promote renewable energy (using solar, wind and other clean energy sources)
environmentally friendly practices(sustainable farming,water conservation, and recycling)
-reduce pollution (controlling industrial emissions)
