vahan kshamata

maanav janasankhya vruddhi ka graafeeya niroopan, 10,000 i॰ poo॰ - 2000 i॰

vahan kshamata athva janasankhya vahan kshamata (angreji:Carrying capacity) kisi bhaugolik kshetr ke paaritantr mein kisi jeevadhaari prajaati ki us adhiktam janasankhya ke roop mein paribhaashit ki jaati hai jise us paaritantr ke sansaadhan poshan pradaan kar sakte hon.[1][2]spasht hai ki vahan kshamata se adhik janasankhya vruddhi us paaritantr par dabaav daalegi aur atyadhik vruddhi us tantr ke vifal hojaane ka kaaran bhi ban sakti hai.[3]

paaritantr ki vahan kshamata se adhik janasankhya vruddhi ho jaana janasankhya utkshep (Population overshoot) kaha jaata hai.

yeh ek paaristhitikeeya sankalpana hai jiska vartamaan maanav janaadhikya ko pruthvi ke paryaavaran rupi paaritantr ke sansaadhanon aur sevaaon ki seema se jodkar dekha ja raha hai. maanav janaadhikya ek aisi sthiti hai jab maanav janasankhya kisi kshetr ki paaristhitikeeya vahan kshamata se adhik ho jaae.[4] yeh shabdaavali poori maanav jaati ki janasankhya aur vaishvik paryaavaran (jo ek paaritantr bhi hai) ki vahan kshamata ke beech sambandhon ko vyakt karne ke liye bhi istemaal hoti hai.[5]

vidvaanon ka maanana hai ki manushya janasankhya vruddhi dvaara pruthvi ke paryaavaran (vaishvik paaritantr) par dabaav daal raha hai kyonki maanav janasankhya pehle hi adhiktam vahan kshamata ka star paar kar chuki hai.[6][7]

inhein bhi dekhein

sandarbh

  1. daya shankar tripaathi, paryaavaran adhyayan, Google pustak, (abhigman tithi 27-07-2014)
  2. Z Hui, C. (2006) Carrying capacity, population equilibrium, and envrionment's maximal load. Ecological Modelling, 192, 317–320. http://dx.doi.org/10.1016/j.ecolmodel.2005.07.001
  3. madhu asthaana paryaavaran: ek sankshipt adhyayan, Google pustak, (abhigman tithi 27-07-2014)
  4. Ehrlich, Paul R. Ehrlich & Anne H. (1990). The population explosion. London: Hutchinson. pp. 39–40. ISBN 0091745519. Retrieved 27 July 2014. "When is an area overpopulated? When its population can't be maintained without rapidly depleting nonrenewable resources [39] (or converting renewable resources into nonrenewable ones) and without degrading the capacity of the environment to support the population. In short, if the long-term carrying capacity of an area is clearly being degraded by its current human occupants, that area is overpopulated."
  5. "Global food crisis looms as climate change and population growth strip fertile land". Guardian.co.uk (2007-08-31).
  6. Zimmerer, K.S., "Human Geography and the "New Ecology": The Prospect of Promise and Integration", Annals of the Assoc. of American Geo., 84(1), 108–125, (1994)
  7. maanav ke bhaar ko vahan karne ki pruthvi ki kshamata ki pareeksha li ja rahi hai: bokova business staindard (hindi) November 09, 2012, (abhigman tithi 27-07-2014)