Sustainable Use Of Resources Flashcards
Non-renewable resources
Cannot be replaced by nature
Renewable resources
Can be replaced by nature
What is overgrazing?
Livestock eat too much plant cover on rangelands , not allowing land to replenish
Largest cause of soil degradation ?
Overgrazing
How can we prevent overgrazing ?
Public awareness on pasturelands,protecting certain areas,reducing number of animals fed on land,rotate grazing land
What is overfishing?
Removing organisms from marine environment , not giving them enough time to replenish
Effects of overfishing ?
Species + ecosystems are lost,ocean could collapse,loss of habitat,overcapacity,invasive species,unselective fishing practices
Gill nets results in?
Wastage , collect more fish than needed,overharvesting
Drift nets ?
Snare fish at their gills , nets hang vertically in water
Longlines result in ?
Disrupts coral , other fish which are not needed are caught
Purse Seine nets ?
Large wall of net , closes at bottom , catch tuna
Trawlers ?
Devastates marine ecosystems
Sustainable fishing ?
Introduce quota system , control total allowable catch , improve fisheries
What is sustainability?
Ability to maintain something or to sustain itself
Sustainable development?
Alternatives to protect,conserve to prolong our resources and environment