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Sosiale wetenskappe: aardrykskunde

Graad 9

Sosiale en omgewingskonflik in suid-afrika

Module 10

Sosiale gevolge van omgewingstekorte

  • Vier belangrike sosiale gevolge kan geïdentifiseer word as gevolg van die invloed van omgewingstekorte op die gemeenskap.
  • Afname in landbouproduksie
  • Afname in die ekonomie
  • Verskuiwing van die bevolking
  • Die verswakking van instellings (organisasies)
  • Verduidelik in jou eie woorde waarom en hoe die bogenoemde gevolge ontstaan, en gee voorbeelde uit jou eie streek.

1. Afname in landbouproduksie

  • In die tuislande het landboupotensiaal afgeneem as gevolg van ‘n toename in bevolkingsdigtheid, watertekorte en gronderosie. In Bophuthatswana het boere in die 1940’s 110 kilogram mielies vir elke persoon geproduseer. Teen die 1970’s het dit tot 50 kg per persoon gedaal.
  • Die gevolg hiervan is siektes wat aan wanvoeding toegeskryf kan word, soos kwasjiorkor by kinders en tuberkulose by volwassenes. Namate die beskikbare bronne vir landbou en woude afneem, word baie mense gedwing om die landbou te verlaat. Hulle word verplig om na dorpe en stede te gaan en om laag besoldigde werk te aanvaar. (Wat beteken dié term?)
  • Gemarginaliseerde (benadeelde) plattelandse en stedelike swartmense word die slagoffers van toenemende tekorte en onvoldoende alternatiewe (ander) werksgeleenthede. Die resultaat hiervan is kroniese armoede (wat beteken “kronies” hier?).

2. Afname in die ekonomie

  • Namate daar ‘n afname in die produksie van voedsel is, het dit ook tot ‘n negatiewe invloed op die ekonomie. Landbou speel ‘n belangrike rol in die verkryging van buitelandse inkomste, wat ons valuta noem. Dit beteken dat indien landbouprodukte uitgevoer word, daar geld uit die buiteland na Suid-Afrika kom. Dit help om die ekonomie van die land te stimuleer.
  • Indien produksie egter afneem as gevolg van omgewingsfaktore, word daar nie genoeg geproduseer om uit te voer nie. Dit strem dan die ekonomie en lei tot afdankings en werkloosheid in sektore wat nou betrokke is by die landbou. Noem van hierdie sektore in jou en ander omgewings wat kan ly as die produksie

3. Migrasie (verskuiwing van die bevolking)

  • Die afgelope paar jaar was daar ‘n toename in die verskuiwing van inwoners uit plattelandse na stedelike gebiede. In die 1990’s is die tempo waarteen verstedeliking plaasgevind het, geskat op 750 000 per jaar. Hierdie mense beland meestal in informele nedersettings. Nie almal slaag daarin om ‘n werk in die stede te kry nie.
  • Hierdie migrante ervaar dieselfde ekologiese benadeling in die stede as waaraan hulle in die plattelandse gebiede blootgestel was. Die konsentrasie van ‘n groot aantal mense in ‘n gebied wat oor beperkte hulpbronne beskik, lei tot die beheer van bronne deur sekere groepe.
  • Plaaslike magstrukture ontstaan waar die leiers die mag verkry deur die beheer van die basiese hulpbronne soos grond, en die toekenning van huise en dienste. Dit kan lei tot spanning en wanpraktyke.
  • Migrasie lei ook tot ‘n toename in die getal informele nedersettings. Tans verteenwoordig die inwoners van die nedersettings meer as 30% van die totale stedelike bevolking. Hierdie nedersettings word in die meeste groot stede in Suid-Afrika aangetref. In Kaapstad is talle huise wat uit enige materiaal, van sinkplaat en hout tot plastiek, bestaan, langs die snelweg opgerig. Wat is hierdie inwoners se grootste probleem? Wat beskou jy as ‘n moontlike oplossing?

Questions & Answers

Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
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Source:  OpenStax, Aardrykskunde graad 9. OpenStax CNX. Sep 14, 2009 Download for free at http://cnx.org/content/col11054/1.1
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