resource management Flashcards
(11 cards)
globally who produces most soil and agriculture
south and east Asia, north and south america
lots of rain and sun
the lots of veg and warm wet climate means rapid decomposition –> fertile soils and high crop yields
factors causing decreased supply
over-abstraction - aquifer and groundwater supply decrease bc water is used faster than it can be replaced
pollution - chemicals have polluted water and made it unsafe for use
climate change - unreliable rain
what do developed countries use water for??
mainly domestic use - 71% of the uk’s water use is domestic
agricultural and domestic are similar
water use in developing and emerging countries
mostly for agriculture, then domestic
industrial can be minuscule, or they might have growing industry
which areas are in water surplus/deficit in the uk
north and west - good rainfall, water surplus
south east and midlands - high population densities, in a water deficit
issues with transporting water in the uk
ageing infrastructure - old sewage pipes and water systems can’t handle the higher water volumes
infrastructure is inefficient - in 2016-17 around 3.1 billion L were lost DAILY through leaky pipes
causes of water supply issues in emerging/developing countries
- don’t have enough water treatment facilities - UN 2015 estimated that 255mil people didn’t have a safe water source within a 30 minute round trip from their home
- greater risk of water becoming polluted because of lack of infrastructure for treating waste water and sewage
- laws protecting the environment are less strict - so things like mining can pollute water
- low rainfall/high frequency of droughts
individual’s ideas about sustainable water management
cheap, reliable and convenient future water access
they may want to be able to choose how it’s managed , eg. lake/pump
community-based water management is common where many don’t have a private water supply and the gov doesn’t have resources to check for sustainable water use
organisation’s views on sustainable water management
- environmental organisations (Waterwise) - campaign sustainable use + enough for wildlife
- industrial organisations - promote use of technology to increase efficiency + create alternative water supplies, it helps them save money on production
- private water companies - say they can manage water cheaper and more sustainable than gov, but if their contracts are just short term they may not be into long term infrastructure investment
government views on sustainable water management
government regulation agencies eg. uk’s Ofwat - ensures water companies don’t overcharge or harm the environment
sign international water management agreements - 1997 UN Convention on International Watercourses
how has china sustainably managed water
wastewater recycling - Beijing recycles 85% of it’s water weekly
storing rainwater
water-saving devices - on taps and toilets
alternative farming methods - drought resistant crops + straw in soil for water retention
tech - micro sprinklers ensure water is used directly on plants and not wasted