paper 3 flash cards

1
Q

what is food security

A

when all people, at all times, have physical and economic access to sufficient, safe and nutritious food that meets their dietary needs.

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2
Q

what are the millennium development goals and food relation

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eight goals, one being to eradicate hunger and poverty by 2015 number of undernourished people in developing regions halved. obstacles remain, e.g extreme weather, food and high energy prices.

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3
Q

what is the global hunger index

A

measures hunger at global, regional and national stales. Combines undernourishment, child eating, child stunting, child mortality , 2019, was 29 meaning serious. Four countries in Africa had alarming levels of hunger. 37% of counties were in serious.

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4
Q

other ways of measuring food security

A

Global food security index
most and least vulnerable- Africa has most countries which need improvement

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5
Q

examples of variation of food security within countries

A

East and west provinces- china
-9 of 31 provinces are food insecure. in these regions 60% consume less than the recommended target of grain products
urban areas- Accra, Ghana
- fewer than 15% if households involved in agriculture, only wealthiest classes can afford fruit and veg

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6
Q

physical factors required for growing food

A

temperature, light water, air and soil
temperature- too high and too low reduce yield, rice- requires temps between 16 degrees and 27 degrees tropical
light- photosynthesis
water- major determinant of crop productivity and quality , essential for germination of seeds and growth, used in photosynthesis, and transport of minerals
air- photosynthesis and respiration
soil- assimilation and water and mineral

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7
Q

what is waste food

A

an output of the food system
large environmental impact of deforestation for crops that will never be eaten, insuffienct means to transport and stock food can also cause obsoletion

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8
Q

what is arable and pastoral farming

A

arable is food crops, good quality soils
pastoral- livestock, areas unsuitable for arable farming, soils have limited fertility, often sustainable where carrying capacity of area is not exceeded

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8
Q

how has globalisation influenced the food industry

A

increased transnational flows of people, foods and information. World population growth also influenced demand for food, growth has been halted in LIDC like Sudan Ethiopia and Sahara where ut is hard to grow foods

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9
Q

what is the difference between shifting cultivation and sedentary

A

sedentary is when farmers remain in one place at all times on the sam eland

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10
Q

what is the difference between subsidence farming and commercial

A

subsidence is farming for their own consumption
commercial is for profit

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11
Q

what is the difference ebetween extensive and intensive far

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extensive is large scale commercial, intensive is small scale with high labour or capital inputs

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12
Q

what are food miles

A

how far the food has travelled from producer to consumer, globalisation has increased the food miles supermarket food travels on average 2400 km, desires and food taste have increased this.
apples from USA 10,133 miles
implication on GHG.
however some cases where imports are less environmentally damaging e.g lettuces in Uk

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13
Q

what are the global value chains

A

patterns of trade and investment causing change from small scale to extensive farming

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14
Q

which country have had a lot of FDI by large TNCs

A

India, Brazil and Mexico. In Brazil large agribusiness firms account t for 62% of the value of agri production.

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15
Q

what is one of the main health problems that is increasing due to globalisation

A

obesity, more processed foods

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16
Q

case study on LIDC that has been impacted by globalisation on diet

A

Tonga-video notes:
9 of the top 10 countries for type 2 diabetes are in the pacificLarge scale migration, increased reliance on imported foods
Rising rates on non-communicable diseases.
-high fat content meats: corned beef, mutton flaps, dense simple carbohydrates- refined sugar and flour.
-infrastructure problems in health promotion, disease prevention and primary curative systems as areas of concern.
- Low cost and high availability
- Imported chicken parts were consumed most frequently.
- Most preferred foods were eaten less frequently.
- Respondents have knowledge on the nutritional value of the foods that they consume.
- Tonga has actively promoted diet-related health education programme,

Primary health concerns: diabetes, high blood pressure and heart disease.
shift from low quality high quality wild meats to high fat low quality meats with low fibre.
- This is consequence of the development and associated urbanization,
- increases noncommunicable diseases.
- Low fat Tongan sources of protein cost 15% and 50% more than mutton flaps.
- This is the same for simple carbohydrates in contrast to local taro.
- Low economic standard of people living there.
- Most people used subsistence farming.

In Tonga there is a negative balance of trade, food imports are significant factors in both issues. Poultry is imported from the US and meats represented just under one third of imported goods. 1989 imports were valued at 68 million. In 1999 imports were imported at 116 millions.

Solutions: make tariffs more expensive
- More education of diets
- Challenging cultural values
- WHO advertise activities.

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17
Q

how many McDonalds outlets are there in Brazil

A

812

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18
Q

what are the reasons for the rise in obesity

A

Major expansion of TNC’s
-McDonald’s, and KFC, which are convenient for consumers
Price crises
-Food price index- monthly change of basket of basic food commodities.
price shocks- effect food prices, major international food crisis in parts of Africa like Nigeria in 2008 spiking prices.

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19
Q

opportunities created by globalisation

A

technological innvolvation, spreading of education about new farming methods and technology to EDC’s.
Increased food production.
GM crops
asian green revolution, high inputs of fertilisers and pesticides that bennefitted wealthy farmers, increased debt in rural population.
Also inequalities run tech like in Ethiopia which can’t keep up with coffee production and palm oil in Asia and South America,
Gm crops improve nitrogen efficiency

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20
Q

example of low cost tech

A

FDP fertiliser deep displacement, less nitrogen lost through run off, improves crop yield
vet africa- diagnose and treatment of livestock illness

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21
Q

examples of short term relief for food aid

A

syria, civil war 2011. 6.5 million people displaced and 6.6 million food insecure.
general: 25 million US dollar needed each week to meet basic needs of people affected by conflict

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22
Q

causes of inequality of global food insecurity

A

physical
types of soil- clay is acidic
temperature and growing season
rice has to be tropical between 16 degrees and 27. climate change is ,makeing it harder for some countries to grow crops
growing season as well
precipitation-coffee needs dry period before harvesting whilst maize needs high levels of precipitation.
India monsoon season
droughts
altitude abd aspect, northern hemisphere south facing sloped receive more sun

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23
Q

other factors affecting food security

A

Ac- capital intensive
LIDC- labour intensive- limits output
competition in food markets- growing retail chains has decreased competition in food markets.
concerns over prices paid to farmers particularly in LIDCS.
AC’s offer subsidies. causing food surpluses in ACls and low prices.
technological advancements can improve production, however AC’s are more exposed to this tech, small scale tech, drip irrigation and bore holes.

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24
what is land grabbing
the acquisition of farmland in developing countries by other countries seeking to ensure their own food security. No of push factors like water shortages, export restrictions have forced countries like china into other countriesWho: TNC’s Why: To increase profit margins, with low costs, for other countries to increase food security. Benefits: Investments into infrastructures, food security, local employment, new agricultural tech Problems: farmers are displaced with an alternate employment -decrease food security -too reliant on foreign investment
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who is Mathus and what was his theory
- Human population will grow at a geometric rate in the absence of checks. - Food supply will only increase at an arithmetic rate. - Eventually demand will outweigh supply. - Only solution will outweigh supply Has not happened due to increase in food tech In some LIC’s there is food insecurity HIC’s there is not Vaccination Population check that did happen was the potato famine in Ireland
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what was boserupt theory
- Population will exceed demand, but it would also put prices and incentivise farmers to produce more. - Increase in workforce, machinery and fertilisers - E.g tech and machinery- Golden rice
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case study miracle village
Case study: India miracle water village Bore hole- pump water from an aquifer, drill into ground Cause: Problems: Mismanagement, wasting of water Bore hole- pump water from an aquifer, drill into ground One side of the Hiware Bazar there is a rain shadow 10x less Drought in 1972 Movement of villagers to other villages 90% of population moved out No village youth Solution: Took out loans for poor farmerss Water shed- water structures, trap and store green water Construct contour trenched in other regions Built 420,000 contour trenches, build around hills Prevents soil erosion -stores nutrients Percolation tank Cement bund Switch to drip irrigation instead of flood Dairy farming Solar lights Irrigation area increased from 50 acres to 170 hectres. Improved morale of the villagers No. families went up from 90 to 235 ‘empty mills I had left, now had plenty of water for my crops’ had great harvest.
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case study India
Ranked 2nd in global agriculture sector In India out of 191.0 Mn hectares of cultivated land , only 000.5 hectares is under organic agriculture. Physical factors: Pesticides used to protect foods, could be unethical. -crops lost -crop care federation- helps to increase crop yield -spread awareness. Human: education and initiatives, for young children Farmer helplines Imports worth 30,000 rupees each year for pesticides. 2nd highest production of tea Physical challenges book: Punjab’s climate is semi-arid. Mean annual precipitation is around 630mm and the annual temperature averages 21 degrees. Climate is divided into three sections: - Hot season - Rainy season jul-sep - Cold season oct-mar -unreliable monsoon rains in recent years have caused frequent droughts. -caused farmers to draw more groundwater to irrigate crops -accelerating the decline of the water table -eighty per cent of groundwater sources are exploited, farmers have to drill even deeper wells. -expensive equipment bought. -Financial stress- high suicide rates -increasing temps due to climate change- more frequent heatwaves. -wheat crops have reached their maximum heat tolerance. -Vulnerable to short term heat – reduces crop yields. -extreme events such as floods and droughts are also occurring, fall in water table. Soil erosion -intense and heavy rain- little infiltration, due to large droughts, high levels of overland flow. -erosion of the fertile upper layers of soil. -40 percent of rainfall is lost to run-off. -deforestation and overgrazing expose soils to erosion by water and wind.Human factors: 1960’s rice and wheat introduce. Aim to make India self-sufficient in food grains and reduce dependence on imports. -new crops had more resistance to heavy rains and wind damage. -created employment as well. -caused HYV’s were dependent on irrigation and the intense use of chemical fertilisers and pesticides. Favouring larger farms and wealthier farms. -chemical affected soil and water quality. -high costs for small farms -Green rev opened gap between the rural rich and the rural poor. Government policy: -inefficient transport and storage infrastructure have created high levels of food wastage and is an area which requires investment by the government rather than subsidising grain purchase. -problems of high food prices and limited quality and quantity. Needs to be focus on thus with subsidy policies. -limitations on foreign direct investment in the food retail sector. FDI e.g. Walmart and Carrefour to bring expertise and innovation in agricultural sector. Globalisation impact: - Small scale farms not able to compete with large scale agribusinesses - Agricultural products are being increasingly imported - Small scale farmers forced into high value crops. - Genetically modified crops being sold by multinational businesses. - Increasing feminisation of agricultural labour due to male migration
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future for India
Future: - Increased government investment in agriculture- focus has been on price support for wheat and rice, famers need more investment into machinery. - Better prices for farmers- evidence suggests that direct selling through farmers guarantees better prices. - Reduced input costs- co-operative farming where machinery and labour are shared, less dependence on chemical fertilisers. - Move to local food security- despite being the second highest producer of wheat and rice in the world, India accounts for one/third of the worlds hungry. Need investment into distribution centres and infrastructure. - -appropriate technology- ensure better management of scarce water supplies.
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what is the global pattern of food insecurity
sub saharan africa and Sahel still remain an issue improvements in Latin America Despite rapidly growing population number of undernourished people has declines political instability and natural disasters contribute to crisis in food insecurity
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examples of countries food insecure due to natural disasters or war
syria- 6.1 million people displaced, 6.6 million food insecure. rice up 403% and bread 180& food prices. caused increase in consumption of unhealthy foods. Yemen- food insecure in 2019, 85 % of farmers lack access to water and fuel for irrigation, 52 % decrease in food security. Fall in income due to conflict and access to staple foods Nepal- 2015 earthquake. 1.4 million people are in need of food assistance. remote and mountainous regions. In words areas 80% of households have lost their entire food supply. Seed losses are major concern as trading is many peoples income
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food production supply chain
production, harvesting, processing, distribution, consumption and disposal.
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what are pinch points and examples of pinch points
places in the chain where disruption often occurs. energy- uk fuel strikes natural disasters- 2010 Icelandic volcano drought Southern Africa disease- covid 19 pandemic 2020 syrian civil war0 2014 transportation networks- Suez Canal Houthis
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what is desertification
the reduction in agricultural capacity due too overexploitation of resources and natural processes such as drought
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how is desertification caused
persistant land degradation, caused by deforestation, overgrazing and over cultivation
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Sahel physical factor of drought
sahel physical threats and management:-increased frequency of periodic drought. Limited amount of moisture leads to low productivity in the ecosystem and low biodiversity. Soils cannot support agriculture and only specially adapted xerophytes can survive. management: Irrigation is needed and must be managed to ensure unintended side effects such as salinisation. Contour stone barriers can be used to slow run-off, increase infiltration and capture sediments to groundwater recharge.
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sahel climate
Variable amount, type and timing of rainfall can impact on water availability. Winter rain can penetrate the soil but in the summer light showers fall on hot surfaces and are quickly lost due to evapotranspiration. Heavy rainfalls can erode soils management:Storage of water during wet periods in ‘planting pits’. -planting of more drought tolerant GM crops.
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wind sahel
Scarcity of vegetation means high winds in winter can remove moist air around plants and soil and increase evapotranspiration. Soil erosion increases and slit clay and organic matter are removed from the surface layers, leaving infertile soil. management:Vegetation barriers – suitable grass species form a barrier to wind and water erosion.
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soils- sahel
Due to lack of vegetation, little deposition and accumulation of organic litter in the soil. When this land is cultivated organic matter is lost quickly. management:Planting pits ae dug in existing fields before the onset of the rains. The pits collect and store water an run-off. Organic matter is also placed in them to improve soil fertility and attract termites which increase waters soil holding capacity.
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albedo effect Sahel
The surface is light coloured rock which reflects the insolation. Atmosphere absorbs the reflected heart and air temperatures rise. The hot air can hold more vapour so there are few clouds and little likelihood of rain. management:
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Sahel human factors, population
population is estimated at 920 million in 2014 and expected to double in the next 35 years. Decreased infant mortality rates combined with a lagging decrease in fertility are leading to annual demographic growth rates of between 2.5 and 4 per cent in the countries of the Sahel region. Population will grow to beyond the areas capacity to feed itself. Fall in agricultural production. management:Accelerate the demographic transition- inform people of the benefits of smaller families, raise legal age of marriage.
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deforestation sahel
Increased deforestation for fuel wood is a direct consequence of population and settlement growth. Leads to increased wind and water erosion of soil and loss of organic matter. Management:Agro- forestry and afforestation projects
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overgrazing Sahel
Population growth also results in overuse of land to grow crops. The soil does not have time to recover and infertility leads to crop failure. management:educate farmers of methods to increase productivity and reduce land drgradation. -focus on increasing investment in irrigation systems. Winder adoption of drought-resistant crop varieties. Diversify crops by rotating millet with cassava and sorghum, and use natural; mulch as fertiliser. Identify trees and bushes that act as natural fertilisers. Land regeneration through simple irrigation systems- planting pits and half-moon water catchments.
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land grabbing sahel
Agribusinesses are increasingly looking to acquire land in Sudan for agricultural production. Recent acquisitions have followed from UAE, Saudi Arabia, China and more. Displaced indigenous farmers with no legal tenure or negotiation rights. Many migrate to towns as droughts intensify. Management: mprove the legal rights of farmers to land ownership.
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how can extreme weather events affect food production
- increased frequency of droughts, wildfires floods - extreme weather events has can destroy crops as well as destroying key infrastructure.
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what is there an increased risk of tropical storms
- climate change will cause hurricanes and tropical storms to become more intense, unleashing stronger winds and causing more destruction of farmland and infrastructure. Ocean temps rising will lead to higher energy storms.
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why is there an increased risk of floods
- as climate warms there will be more heavy rainfall leading to flooding. UK Defra estimates that 35,000 ha of high quality arable land will be flooded least once every 3 years by 2020.
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how does water scarcity affect food production
less than 1% of all water is available for human use. Of this agriculture is the biggest consumer. of the water available for crops 60% is lost due to poor irrigation systems and high levels of evapotranspiration.
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what are the strategies to reduce water scarcity
mulching- laying plant leaves between rows of cultivated crops to reduce soil erosion. - drip irrigation, which reduces loss by evaporation by directing a slow moving supply of water to the base of crops. - training farmers in water harvesting technology.
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what is the negative impact of volcanic activity on livestock and food production.
- volcanic ash can adversely affect food production in a number of ways. - Ash falls destroy pasture land and as a result livestock need to be supplied with all of their feed to survive in short term. - If fluorine is present , causes fluorosis when consumed by livestock. 1996, 2000 animals died near Mount Ruapehu in New Zealand. - increased sulphur levels and lower ph levels can alter a soil to such an extent that crops cannot survive. Mount etna- citrus fruits. cost of region 140 million - can affect food distribution Iceland
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what is the case study on food production techniques in extreme conditions
Arctic
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what are the location of arctic
-covers 14.5 million km squared consisting of the ice-covered Arctic Ocean and the surrounding land of northern Alaska, Canada, Scandinavia and Russia. -Some parts are covered with ice sheets. Frequent storms. Summers might have periods of continuous daylight. Temp’s do not rise above freezing point- growing season =short
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what is the growing conditions of arctic
npp = 140g/msquared/year, second lowest of land biomes. -low moisture availability, plants must be adapted to conditions. -Compact, long and slow growing -shoot roots avoid permafrost and make use of summer surface thaw. Low shrubs, lichgen and mosses are dominant plants. -lack of nitrogen-fixing plants limit fertility and cold wet conditions inhibit breakdown of plant material.
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what is the diet of the indigenous arctic people ND THE PROBLEMS FACED BY CHANGES IN DIETS
-rabbit, fish, bird, seal, carbou. -Traditional food and methods still used -do have super markets, fast food chains -obesity, heart. Disease 50% of children are consuming traditional food 50 hot dogs to get iron within seal meat- rise in anaemia Fish source of fatty acids and omega 3 3x price for food causes them to buy cheap foods. the inuit people are traditional hunters of marine mammals such as narwhal, which provide a rich source of vitamin C. In summer months hunters use homemade harpoons. whale hunting is an Important aspect of life for the Inupiat people in Alaska, despite the fact many now have access to food shops. -hunt bowhead whales,. Whale meat is essential, eat twice a week. Whale oil is added to ther food sources.
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WHAT ARE THE THREATS OF CLIMATE CHNAGE TO The FOOD SECURITY OF THE ARCTIC REGIONS
- Extreme environment conditions of the Arctic support low species diversity and delicate foo webs which make the ecosystem vulnerable to change. - As ice, snowfall and permafrost diminish , population is dependent on harvesting from environment- Hunting terrin, migration patterns, quantity and quality of food has all been affected - Slushy ice prevents hunters from being able to hunt - Travel routes made longer and unpredictable - Decreasing ice causing species such as polar bears to retreat onto land - Forced polar bears to change diet causing a loss of weight and disrupting food supply.
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what is salinisation
land degradation, increase in salts in the soil, brough to the surface by high evaporation and transpiration.
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what is the problem with salinisation and small case study and solutions
Aral Sea Poisonous to plants and inhibits water absorption, made worse by human activity. 2 main causes linked to irrigation: Water used to irrigate crops evaporates under dry condition; capillary force draws water to the surface and deposits salt. Aral sea: Land has lost fertility, and volume of sea dropped by 90%. Caused ecological disaster, caused town to move away, abandoned buildings Camels died from ‘salty’ disease Solutions: -avoiding over-irrigation of crops by using techniques such as drip irrigation, or moisture monitoring. -good crop selection- deep rooted plants to maximise water extraction. -minimising fallow periods (recovery) , bare soil aids water infiltration -crop rotation to help minimise fallow periods. ‘break crops’ improve soil quality -avoid deep ripping and over tillage. -Good soil management , managing pH and fertility. -Maximising soil structure, using multiple crop species -mulching exposed ground to help retain soil moisture and reduce erosion. -establishing and maintaining shrubs and trees on property and public lands- maintain water table/ -introducing salt tolerant crops such as sugar beet -drip feed irrigation, direct watering to plant roots.
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how much land did the WWF report had been lost due to deforestation
420 million acres between 2010 to 2030
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what is biodiversity
the variability among living organisms from all sources- air land and water
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what are some of the reasons for high rates of deforestation in Brazil
Increased demand for soya beans- Cerrado region deforestation projected to increase three fold over next 35 years - soybean is required in many products. all of which are becoming increasingly popular in the western diet. -poses threat to biodiversity, cerrado region contains 10,000 plant species -only 35% of the cerrado remains in its original state. -large quantities of pesticides and herbicides- carried into wetlands.
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what does Indonesia grow a lot of
palm oil
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what have been the changes to the UK landscape due to agribusinesses and the industrialisation of farming
field sizes have increased -natural habitats have been converted into food production. -built environment has become more intrusive
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what are the agricultural impacts on water quality
- algae bloom and eutrophication from fertilising, due to leaching - deoxygenation. manure spreading- pesticides- run off biota- death off top predators
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case study on impact of deforestation for food production in the tropical rainforest
- up to 2019, the annual loss of tropical rainforest was 30 million hectares, and increase in agricultural land was 6 million hectares. - low income counties most affected -agriculture accounts for 75% of deforestation. - forest users use slash and burn technique. - burning releases nutrients stored in vegetation
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what is the impact of deforestation on water cycle
localised deforestation: evapotranspiration is lower -less interception -overland flow and through flow increase -increased river discharge -soil erosion increases extensive: most of water leaves in river rather than being recycled -river levels fall
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impacts of deforestation
ownership of farms is by wealthy minority -change in nutrient cycle -los of biodiversity
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what is the health issue associated with food shortages
malnutrition, 30% of the world suffer from this. Globesity Developing countries have been experiencing more overweight Columbia (41%)
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Which are the yeh most common nutrient deficiency’s
Vitamin A- needed in body growth from dairy products, 50% of children in the developing world are affected by this. Protein- function is growth and repair from meat cheese eggs, associated with kwashiorkor. Affects a quater of developing world, symptoms are weight loss.
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Why is obesity bad for children
Can lead to breathing difficulties, increased risk of fractures, hypertension early cardiovascular diseases links to poverty and deprivation.
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Why are countries facing a double burden
Many countries with resources stretched , must now cope with health issues. Leads to obesity a sign of poor nutrition. As urbanisation increases diet becomes sedentary. Developing countries are struggling to feed many.
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Harmful impacts on human health as a result of increased use of chemicals and pesticides
Use has increased Over the last 50 years due to green revolution and the benefits to crop yields. - fast growing countries becoming biggest users - Columbia, Korea and Japan biggest users with china having yeh highest number of contamination incidents with 66 FSA food standard agency responsible for protecting public health in UK
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Examples of food impacts on health situations
India withdrawing noodles from shops. Unlisted chemical enhancer, unsafe and hazardous - 200 people I’ll in the UK after eating oysters, 180 people reported cases of gastroenteritis. - recall of peanut butter spread contaminated with listeria USA
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Case: study impacts of poor food security on the lives of people in Keya