Agricultural 1 Flashcards
What can the food industry be spilt up into?
- Production
- Processing and packing
- Disturbation and retail
- Consumption
What are factors in Food Security
- Utilisation of food
- Access to food
- Availblity of food
Food security defination
“All people, at all times, have physical and economic access to sufficient, safe and nutirous food that meets their dietary needs and food prefernces for a active and healthy lifestyle”
What is the current state of our global food system?
Doesn’t provide
* Enough food
* Right type of food
* Adequete nuitrition
FOA State of Food security and nutrition 2022
700-850 million are hungry
What are hungry people linked to?
Natural disasters and conflict/political instablity
(blank) of adults are overweight globally
39%
2 billion people…
affected by vitamin and micronutrient deficenices
Agricultural practices which contribute to Greenhouse Gases
- Biomass burning
- Manure management
- Fertilizers
- Rice production
- Soil respiration
Spybean
- Used for livestock feed
- Unable to grow in the UK
- Has to be transported from South America
- Causes deforestation
Consequences of agricultural water
- Declining stream flows
- Drained wetlands
- Subsidence
What can irritigated agriculture impact?
- Local albedo
- Local transrespiration and evaporation rates
Aral sea
Caused by land use changes and irritigation in Kazakhastan and Uzbekistan
What produces methane?
- Agricultural bacteria
- Livestock
- Biomass burning
How to keep up with food demands?
Increase cropland or cropyield
Green revolution (1960-1970)
- Led to more than a 200% increase in crop production
- Synethetic fertilizers
- Expanding and improving irrigation systems
- Crop protection
- Crop breeding
How to improve Livestock yields?
- “factory farms”
- Fattening feeds
- Restriction of movement
- Antibiotics and drugs
- Improved breeds that breed faster and fatten quickly
What are the side effects of intensive farming?
- Water pollution
- Air pollution
- Soil pollution
What can excess nitrate led to?
- Acid rain
- Eutrophication
- Reduced biodiversity and soil health
(Blank) of global cereal production takes place in irritgated land
More than 40%
What are the side effects of irritigation?
- Rising water tables
- Salinization
- Waterlogging
Impact of pesticides?
- Resistance in target species
- Harm non-target species
- Lower biodiversity
- Impact human health
Pesticide alternatives
- Environmental control (removing nests and draining host wetlands)
- Genetic and sterile male control
- Behaviour control (phermones or repelling chemicals)
- Resistance crop/livestock breeding
- Biological control (may become a invasive species)
Impacts of GM crops
- Clones and monocultures
- Lower biodiversity
- Can become invasive
- Side effects on human health
- Expensive
Impacts of aquafarming
- Habitat destruction
- native fish displacement
- Diseases
- Water contamination
