Area of high inequality/structural poverty. ⇒ High levels of food insecurity despite productive, flat land + large aquifer. 75% rural population = tenant/marginal land owners => depend on labour (+ own subsistence?) monsoon patterns becoming more unpredictable - affected rice (paddy crop) drought finally pushes many into food - rich farmers pump ground water. insecurity -> men migrate to cities and send sporadic income, women exploited for wages but need money to feed the household.
Bengal famine
Annotations:
984 famine - media portrayed as due to a drought, but there was more to it.
Bengal famine - peak of ww2, colonial narrative puts it down to drought. there was a drought but there had been worse, but it was actually down to combination of drought, pre-existing inequalities in the area, hoarding by grain traders = rising prices, British failed to give aid, much grain was diverted to the front lines (war) = more price rises. Mostly labouring poor who suffered - depended on purchasing food from the market. - grounded in colonial policy, poor planning, socio-economic inequalities.
Tigray,
Ethiopia
Annotations:
2020 study: complex agro-ecological history - highly fertile + productive region since ancient times - used for sedentary agriculture. stresses (demographic, biophysical, political, economic) since 19th century reversed this Decades led to severe land degradation. farmers driven to steeper mountain slopes. soil moisture retention undermines, loss of top soil intensifies. restoration since 1990's Lower-lying areas are have responded less well to schemes, terraces (cut down soil degradation), check dams, small-scale water storage to irrigate in dry season. Yields double in a decade = better soil fertility. Also young people move to city due to higher cost of living - better access to money. Lower-lying areas are have responded less well to schemes being drier than mountain areas. Conflict in the area since may have affected outcomes.
Cilmatic
Social/econ/political
Vulnerability = the extent to which a system/population is susceptible to harm - Adger, 2006
Resilience = opposite of vulnerability - capacity of a system/population to adapt to shocks
social resilience - communities - (e.g. access to irrigation changes, crop insurance)
ecological resilience - ecosystems ... disturbances - e.g. through species/functional diversity
Risk-Hazard approach: vulnerability = multiple outcomes to a biophysical event.
Social/political approach: vulnerability rooted in social structures/relations + economic reason e.g.
vulnerability also due to people not having a secure livelihood so are more at risk of food insecurity
when drought/flooding hits, certain ethnic groups in a region may be at higher risk.
- v. to climate change linked to one’s capacity to adaptt
- class, gender, social position affects the
resources accessible for those coping with stress
- important ones: access to livelihood resources/assets e.g. land, irrigation, social networks, fertile
land, resilient land, bank accoun
Overharvesting case study: pealgic
birds
Genetic
Resources
Breeding = selection for desired traits
Conventional (19th century Europe) : crucial for food security. humanmade over millenia
Genomic based (last 50 years)
/ GMO Breeding
quick efficient, expensive, require technology, material taken form other species, within a species,
delete, insert, repress a gene.
Requires basic genetic diveristy.
Commericial varieties do not have genetic
diversity. Uniformity good fro convenience e.g.
harvest on same day however all have same
vulnerabilities = risky.
Land races + crop wild relatives have diveristy. However
landrace decline has been evident over the years (see
example china)
PARADOX: modern cultivars outproduce
land races so farmers switch and landraces
decline. But genetic diversity is required to
breed new improved homozygous crop
varieties
Formal Breeding (Gregor Mendel)
1) Law of segregation
Law of independent
assortment
Recurrent Backcross - to produce resistant
varieties. resistant can be lost over generations.