01641nam a2200205Ia 4500003001000000005001700010040000900027245010000036490004500136520091200181650002601093650001901119650002301138650001801161650002501179650001901204700001501223856015601238008004101394MX-MdCICY20260521091241.0  cCICY10aWas low atmospheric CO2 during the Pleistocene a limiting factor for the origin of agriculture?0 vGlobal Change Biology, 1, p.93-106, 19953 aAgriculture originated independently in many distinct regions at approximately the same time in human history. This synchrony in agricultural origins indicates that a global factor may have controlled the timing of the transition from foraging to foodproducing economies. The global factor may have been a rise in atmospheric CO2 from below 200 to near 270 ^mol mol"^ which occurred between 15,000 and 12,000 years ago. Atmospheric CO2 directly affects photosynthesis and plant productivity, with the largest proportional responses occurring below the current level of 350 )xmol mor^ In the late Pleistocene, CO2 levels near 200 (imol mol"^ may have been too low to support the level of productivity required for successful establishment of agriculture. Recent studies demonstrate that atmospheric CO2 increase from 200 to 270 ^.mol mor' stimulates photosynthesis and biomass productivity of C3 plants by 2514aORIGIN OF AGRICULTURE14aCO2 ENRICHMENT14aCROP DOMESTICATION14aGLOBAL CHANGE14aNEOLITHIC TRANSITION14aPHOTOSYNTHESIS12aSage, R.F.40uhttps://drive.google.com/file/d/1yAqA4tZ3XzVeeQjC6vsE7jb1_oWqQHru/view?usp=drivesdkzPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx250602s9999    xx |||||s2   |||| ||und|d