Unit 4 (10,11,12) Flashcards
Crop
Any plant cultivatef by people
Characteristics of hunter gather society
Hunting fishing (men) gathering plants (women) small pops., travel often for food, stay clear of each other’s territory
How many hunter gatherers today
Quarter million
Where do current hunter gatherers live
Austrailia’s great victorian desert, botswana and nambia, india’s andaman islands
Ag. Revolution:
Time when humans first domesticated plants and animals and no longer relied entirely on hunting amd gathering
Sibsistence ag.
Farming for consumption if own fam bam
Commercial ag
Farming mainly for sale off the farm
Ag rev. Started bc of…(2)
Environmental factors: climate change started@ same time-end of ice age
Cultural factors: all bc of humans- discovered dropped seeds=plants, went from accidental to deliberate farming
Name crop hearths:
Latin Am, SW Asia, Sub-Sahar. Africa, E Asia, SE Asia
SW Asia crop and animal hearths
Barley/Wheat/Lentil/Olive -10,000years ago
Cattle- goats pigs sheep 8,000-9,000years ago
Latin Am crop hearths
Beans/Cotton/Potato 4,000-5,000 years ago
E Asia crop hearths
Rice/Soybeans/walnuts +10,000 yrs. ago
SE Asia crop hearths
Mango/taro
Sub Saharan Africa crop hearths
Sorghum/Yams 8,000 yrs. ago
3 features that distinguish commercial and subsitence ag
% of farmers in labor force
Use of machinery
Farm size
MDCS vs. LDCS
3 features that distinguish commercial vs subsitence ag
% of farmers in labor force -mdcs=few farmers -ldcs=lots of farmers bc most are subsistence Use of machinery -mdcs=lots of it ex herbcides etc -ldcs=mainly hand tools and animal or human power Farm size -mdcs=large farm bc lots o machinery -ldcs=smaller size bc not mechanized
Food security:
Physical social and economical access at all times to nutricious foods that meet dietary needs and for preferances for active and healthy life
Fraction of world with no food security
1/8
Undernourishment
Dietary energy consumption that is continuously below min. requirement for having healthy life with exercise
How many undernourished people in world and where
870 million
India china SS Africa S Asia
Cereal grain
A grass that yields grain for food
Grain:
Seed from a cereal grass
Main grain eaten in mdcs and ldcs
WHEAT
Leading crop in world
MAIZE
Main source if protein in mdcs and ldcs
Mdcs- meat products
Ldcs- cereal grains
Most undernourished country
INDIA
Who made 11 ag regions of world
Derwent whittlesey
LDC ag. regions:
1 Pastoral nomadism
2 Shifting cultivation
3 Intensive subsistence-wet rice dominant
4 Intensive subsistence- crops other than wet rice dominant
5 Plantation
MDC ag. regions
1 Mixed Crop and Livestock 2 Dairying 3 Grain 4 Ranching 5 Mediterranean 6 Commercial Gardening
Pastoral nomadism:
Form of subsistence agr. based on herding of domesticated animals
Climate of pastoral nomadism and WHERE
Dry climate where planting crops is impossible
SW Asia and N Africa, C Asia, E Asia
How do pastoral nomads get grain
Raise crops-Trade animal products w/sedentary farmers-Women/kids stay and farm-Group stays and plants when lots of rain
Animals chosen for pastoral nomadism:
Camel- carry heavy load store water
Goats- need lots of water can eat any vegetation
Sheep-slow affected by climate, picky eater
Territorality of pastoral nomads
Very terriotrital- do not go into each others land unless necessary
Transhumance:
Seasonal migration if livestock between mtns and lowland pasture areas
Pasture
Grass or other plants grown for feeding grazing animals and land used for grazing
Future of pastoral nomads
Govt pushing them off arable land- urges them to become sedentary farmers instead of nomads
Climate of shifting cultivation and WHERE
Tropical regions with high temps and lots of rain HUMID LOW LAT.
Latin Am, SS Africa, SE Asia
2 features if shifting cult.
1 farmers clear land for planting by slashing vegetation and burning debris
2 farmers grow crops on cleared field for few years until nutrients are gone
Swidden:
Cleared area
Potash
Fertilizer from burning debris (potassium)
-only fertilizer used in shifting cultivation
How long are swiddens used
3 yrs. or less
Land ownership in shifting cultivation
Traditionally- land owned by whole village-each had a patch and got to keep output
Today- private indiv now own land
% of world land that is shifting cult
25%
% of world pop that does shifting cult
Less than 5%
Pros and cons of shifting cult
No environmental damage No damage to soil Cons Only supports small pop Gas from fires can contribute to global warming-co2 stuck in atmosp.
Agriculture
Deliberate modification of earth’s surface through sustenance or economical gain
Where is intensive subsistence ag practiced?
East asia
South asia
Southeast asia
Wet rice:
Rice planted on dry land in a nursery and then moved as seedlings to a flooded field to promote growth
Sawah:
Flooded field
Paddy:
Term used ny europeans and n amers for flooded field-is actually malay word for wet rice
Double cropping:
Getting 2 harvestd per year for one field
Where is double cropping possible
Warm winters-south china-taiwan
NOT POSSIBLE-drywinters-India
Characteristics of int. Subsistence farming
Efficient farmers on small lands-hand work and animals not much tech.-animals get little land
Steps of wet rice cultivation
4steps
- field prep
- flooding
- transplanting
- harvesting
What is major crop of non dominant wet rice regions
WHEAT
How are multiple harvests possible in int sub wet rice non dominant areas
Crop rotation
Explain agriculture in communist china
They tried to join small fields to make one big field to promote this way tools could be shared: efficiency-didnt improve productivity
Once gone- better production
Regions of plantation farming
Latin Am. Africa. Asia
Climate of plantation farming
Tropica and subtropics
Plantations operated by…
Europeans and N Americans
Types of plantation crops
Cotton coffee sugarcane tabacoo bananas
Plantation:
Large commercial farm in LDCs that specialize in one or two crops
Agribuisness:
System of commercial farming found in MDCs
ex. Tractor manufac, fertilizer prodcution
Regions of mixed crop amd livestock
USA- west of appalacians
Europe- Most of France to Russia
Explain mixed crop and livestock
Most crops are fed to animals whose manure is used to fertilize ground to grow more crops- most land is used to grow crops but 3/4 $$ comes from animal products
Fact
Mixed crop and livestock distributed workload more evenly bc crops and livestock
Where is US corn belt
Ohio to dakotas with center in Iowa
Explain crop rotation in mixed crop and livestock
Fields are left fallow during crop roation to keep fertility of field- also uses rest crops like clover to bring nutrients back
Region of commercial gardening
Southeast USA
Conditioms for commercial gardening
Long growing season
Humid climate
Accesible to large markets
Truck farming:
Commercial gardening and fruit farming named so bc goods are trucked to ports
Milkshed
Ring surrounding city from which milk is supplied with out spoiling
Worlds largest producer of dairy products
New zealand
Problems of dairy farmers
Labor intensive- milk cow 2x day every day
Winter feed- feed cows in winter bc cant graze-summer crops used as winter feed
Difference between grain grown in commercial grain farming and mixed crop and livestock regions
On commercial farms grain is consumed by mainly humans not livestock
3 areas if large scale grain production
Winter wheat belt
Spring wheat belt
Palouse region of WA state
Advantages of wheat as a crop
Many uses- can be transported easy- stored easily doesnt spoil
Mediteranean ag climate
Borders a sea, most on west coast of continents, moderate winter hot and dry summer
Med crops grown for humans or livestock?
Humans
Horticulture
Growing of fruits veg flowers to form the commercial base of med. farming
2 main crops of med farming
OLIVES AND GRAPES
Ranching:
Commercial grazing of livestock over an extensive area
Climate livesock best adapted to- where ranching is practiced
Semiarid/arid land- MDCs where veg is too sparse and soil is too poor for crops
Why did cattle ranching expand in usa
Increased demand for beef in east coast cities
Why did cattle ranching decline
Came in conflict with sedentary agr: has set boundaries while ranchers just roam
Where is cattle ranching today
Austrailia
S. Am.
W. Usa
3 usa and world stages of ranching
- Herding of animals over open ranged (seminomadic)
- Ranching into fixed farming by dividing the open land into ranches
- Ranching confined into drier lands
Accodring to Boserup thesis how can subsistence farmers increase food supply
New farming methods are adopted
Land is left fallow for shorter periods
Africas food supply struggle:
Food production cant keep up with fast growing pop- famine threat
Farmers do not get profit even tho the govt prices are low so they can afford it
Countries of cocaine (cocoa leaf)
Columbia/Peru/Bolivia
Countries of heroin (opium)
Afghanistan/Burma/Laos
Countries of marijauna
Mexico
How is efficient agr. Made a problem?
Overproduction results in low incomes bc more food made than demanded- supply increased but demand stayed same
High food prices bc…
- Bad weather
- Higher demand
- Smaller growth in productivity bc no breakthrus
- Use of crops as biofuels instead of food esp. Latin Am.
3 main sources of dietary energy
Maize
Wheat
Rice
3 points of which us govt deals with excess agr capacity
- Farmers=encouraged to avoid growing crops that are in excess supply
- Govt pays farmers when certain crop prices are low- pay difference between target price(govt set) and market price
- Govt buys surplus production and sells and donated it to other govts ex food stamps
Who is johann heinrich von thünen
Estate owner in N. Germany who proposed model that explains importance of proximity to maket in choice of crops on commercial farms
According to von thunen’s model 2 factors a farmer considers when deciding what to plant
Cost of land
Cost of transporting productd to market
Explain rings of von tunen’s model
1st-market orientated garden/milk products-expensive to deliver
2nd-wood/timber very heavy
3rd-various crops and pasture(crop rotation)
4th-animal grazing
4 strategied to increasd food supply
Increasing exports from countries with surplused
Expanding land area used for agr.
Expanding fishing
Increasing productivity of land now used for agr.
Largest regions and countries of exporting agr products
Brazil and Argentina N Am. SE Asia S Pacific
Leading importers of food
Japan UK China Russia
Leading exporter of grain (what kind how much)
USA maize 50%
3 reasons land is currently being removed from agr use
Urbanization, Waterlogged lands, Desertification
Aquaculture:
Cultivation of seafood inder controlled conditions
Leading fishing countries
China, chile, indonesia
Do mdcs or ldcs consume more fish
LDCs
2 main practices of green revolution
Intro of new higher yield seeds
Expanded use if fertilizers
Pop is growing faster than agriculture land
Agr productivity increasing faster than pop growth bc of green rev
Desertification:
Process of human actions causing land to deteriorate to a desert-like condition
Explain waterlogged
Excessive water reultd in roots becoming water logged- if water if salty=plant damage
Water based food obtained by…
Fishing
Aquaculture/aquafarming
How many regions is ocean divided into
18
Green revolution:
Invention and rapid diffusion of more productive agr techniques during 1970s and 80s
Basics for fertilizers
Nitrogen Phosphorus, Potassium
Characteristics of miracle wheat seed
Less sensitice to variation in day lenth, responds better to fertilizers, matures faster
Characteristics of miracle rice seed
Hybrid of indonesian rice and taiwan dwarf rice- hardier and increased yields
Problems that prevent farmers from taking adv of green rev
Must use more fertilizer and machinery- need a cheap way to make nitrogen fertilizers
3 crops that are genetically modified
Soybeans
Cotton
Maize
How much of major crops are GMOs
94% soybeans 90% cotton 88% maize
Pros and cons of gmos
Pro- higher yields, increased nutrition
Con- health probs, increased dependace on usa, export probs
Sustainable Agriculture
Agr. Practices that preserve and enhance environmental quality