Unit 8 Vocab and test Flashcards
Silage
fermented fodder
Leibig’s Law
The abundance and distribution of a species is determined by the limiting factor most necessary
but in least supply
Sedimentation
deposition of sediments in bodies of water
Marginal Land
Land not well suited for farming
Salination
improper irrigation leads to salty soil
Drip Irrigation
watering crops slowly at the base of plants using pipes and hoses.
Desertification
Creating a desert like soil by improper farming
Tragedy of the Commons
When a person, for their self interest, depeletes a shared resource and ends up hurting everyone involved
Clear cutting
cut down and remove every tree from (an area).
Clear cuttings effects on runoff
increases runoff because there is no roots
Clear cutting effects on transpiration
decreases transpiration and evaporation
Clear cutting effects on turbidity
Leads to more runoff and erosion increasing turbidity
Clear cutting effects on CO2
increases carbon dioxide, less photosynthesis
Norman Barloug
Started the green revolution where plants were increased in diets. Developed a high yielding disease resistant wheat.
Rachel Carson
Wrote a book about the silent spring where she talked about the harmfulness of the DDT pesticide used in war.
Trump
Left the Paris agreement where they tried to tackle rising tempratures around the world
Bad thing about farm raised fish
Disease and low genetic variation
3 ways of mass fishing
Long Lines
Trawling
Drift Nets
Plowing perpendicular to the slope of the land to reduce erosion
Contour Plowing
Planting the large crops at the side of the field to reduce wind erosion
Sheltercropping
You plant this between what you are growing to sell to protect the crops.
Cover crops
Using many types of ways to shelter and protect things on your land.
Integrated Pest Managment
Leaving the field without planting new crops and allowing it to replenish.
Seasonal Fallowing
2 things good about eating meat
Vitamins and high calories
Bad thing about eating meat
Heart disease
2 bad things about aquaculture
DIsease and Parasites
2 bad things about food pens
parasites and immorality
How agriculture leads to eutrophication
More runoff of fertilizers
How agriculture leads to soil erosion
no roots
bad things about pesticides
Runoff
Drip irrigation
Least lost to evaporation, Water is brout to the plants through pipes
Subsistence crops
Eaten by farmers
Forage Crops
For animals
Agriculture leads to air pollution
Tractors and machines
How agriculture leads to desertification
Over farming and no nutrient replenishing
2 High yeilds crops
Corn/Rice
3 most grown crops for humans
Corn/Rice/Wheat
Example of a cash crop
Tobacco
How do Forests help the climate
Take out CO2
Forests effects on ecotourism
Trails
Forest effect on erosion
Roots hold soil
Mark and cut small groups of trees
Selective Cutting
Cut All the matured trees and the diseased ones later
Shelter wood
Cut All trees except a few mature ones
Seed tree
Cut down long paths
Strip
How can slash and burn be good for farms
THere are nutrients in ash
Where would most mines be in America
Virginia area
