01835nam a2200253Ia 4500003001000000005001700010040000900027090001200036245010000048490004500148520091200193650002601105650001901131650002301150650001801173650002501191650001901216700001501235856015601250942001401406008004101420999001701461952010301478MX-MdCICY20260521091241.0  cCICY  aB-1132210aWas 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.mx  2LoccREF1250602s9999    xx |||||s2   |||| ||und|d  c21483d21483  00102Loc40708F1aCICYbCICYcREd2025-06-25l0oB-11322r2025-06-25 14:06:48w2025-06-25yREF1