Sustainability Lecture 3- Becky Flashcards
what is SDG 2
zero hunger by 2030
what affects food security?
utilisation
availability
access
Stability
what does GEC stand for
Global Envrionmental Change
name some characteristics of current modern farming practices
Intensive arable agriculture (“conventional farming”)
Maximise yields relative to land use and costs
Homogenous landscapes with low crop-diversity, and high use of fertilisers, agrochemicals, and irrigation
Concentration of environmental impacts at local scale
Current food system responsible for ~30% of greenhouse gas emissions (including CH4 from ruminants and N2O from fertilisers)
how could the global diversity in farm systems be described?
Not all intensive large-scale farming
Mixed farming
Nomadic pastoralism
Shifting cultivation
Organic farming
Agroforestry
what is subsistence farming?
A plot of land produces only enough food to feed those who work it—little or nothing produced for sale or trade
T/F subsistence farm produces most food in developing countries
T
name some developmental issues of subsistence farming
local rights, infrastructure, rural incomes, empowering women
How might existing knowledge and future technological advances sustainably increase production?
Examples from using new pesticides in intensive agriculture, to intensifying the use of indigenous knowledge in local farming practices
how does GPS allow for accurate land management?
Enables farmers to apply fertilizers and harvest crops with great precision
what are GMOs
Genetically Modified Crops/ organisms
what are 3 elements of climate-smart agriculture
increasing agricultural productivity and incomes
adapting and building resilience to climate change
mitigation of greenhouse gas emissions
why has climate-smart agriculture been criticized?
for justifying nearly any form of agriculture and for not addressing inequalities in production and distribution
what does climate-smart agriculture do?
Increase input efficiency
* Change management practices
* Carbon sequestration
* Waste reduction
* On-farm energy production
what defines precision farming?
Technologies that allow application of water, nutrients, pesticides to the places and at the times they are required
Reduces inputs and environmental impacts