6.3-6.2 Nutrition and Food Production (Nutrition and its issues…
6.3-6.2 Nutrition and Food Production
Nutrition and its issues
Malnutrition is when you eat food of poor nutritional value
Undernutrtion when people can grow enough food to sustain themselves
Hunger is decreasing but there are still people diyng of stravation such as Africa
Many people suffer form vitamin defficiencies mainly vitamin A, zinc, iron and iodide
Overnutrition is whne you take more nergy than what you are consuming, this can cause obesity.
poverty prevents people from growing or buying food so they dont have food security
Lack of food security can cause famine, mainly due to crop failures
food deserts is where people are fard from where food is grown so they lack food security
most food is produced from croplands, rangelands, pastures and feedlots as well as fisheries and aquaculture
There is lack of food diveristy in which the same livestock and crops are produced over and over lowering biodiversity.
food specialization can compromise food security because deisease and climate change can wipe out an entire food source
The principle of sustainability dictates that having diffrente food soruces can ensure that enviromental conditions dont affect food production
crops are grown without synthetic pesticides, synthetic inorganic fertlizers or genetically engineered seed varieties
Plantation agriculture is used mainly on less developed tropical countries
Irrigation is when water is brought to the crops by artificial means
synthetic pesticides are chemicals manufactured to kill or control population of organism that hurt crops, is mostly on developed countries and it has a very high yield, synthetic fertlizers manufactured chemicals are added to crops
It develops monoculture, uses more water, fertlizers and pesticides and it increase the number of crops grown per year.
crossbreeding uses artificia selection to make improved crops an d livestock. GMOS
Intensive is when the imput of humand, drafts of animal labor and fertilizers and water is used to produce more food than needed to survive
Subsistence is using sun energy and labor of humans and draft of aniamls to produce enough crops to survive
Polyculture is when you grow various crops side by side but there is a low yield of food production, needs less fetilizer and water and has more diveristy
Slahs and burn is hwne you burn vegetation to clear a small plot and the n grow crops unti the soil is depleted
Meat prodcution is increasing
Livestock is often in rangelands and pastures
Feedlots are intense outdoor feeding and factory farms are where animals are put in into buildings
Healthrisk are involved because of the growth hormones and antibiotics that are in the animals and later you consume
Fish and Shellfish Production
Fisheries is a concentration of particular aquatic species to grow them and harvest them .
Aquaculture or fish farming is when you raise fish in freshwater and then "crop" them