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090 _aB-10295
245 1 0 _aNutrient status and plant growth effects of forest soils in the Basin of Mexico
490 0 _vEnvironmental Pollution, 140(2), p.187-199, 2006
520 3 _aThe nutrient status of forest soils in the Mexico City Air Basin was evaluated by observing plant growth responses to fertilization with N, P or both nutrients combined. P deficiency was the most frequent condition for soil from two high pollution sites and N deficiency was greatest at a low N deposition site. Concentrations of Pb and Ni, and to a lesser extent Zn and Co, were higher at the high pollution sites. However, positive plant growth responses to P and sometimes to N, and results of wheat root elongation bioassays, suggest that heavy metal concentrations were not directly phytotoxic. Further studies are needed to determine if heavy metal toxicity to mycorrhizal symbionts of eucalyptus (Eucalyptus camaldulensis Dehnh.)from high pollution sites may explain the P deficiency and stunted growth. P deficiency is expected to limit the capacity for biotic N retention in N saturated forested watersheds in the Basin of Mexico dominated by Andisols.
650 1 4 _aANDISOLS
650 1 4 _aNITROGEN DEPOSITION
650 1 4 _aPHOSPHORUS DEFICIENCY
650 1 4 _aNITRATE LEACHING
650 1 4 _aMEXICO CITY AIR BASIN
700 1 2 _aFenn, M.E.
700 1 2 _aPerea-Estrada, V.M.
700 1 2 _aDe Bauer, L.I.
700 1 2 _aPérez-Suárez, M.
700 1 2 _aParker, D.R.
700 1 2 _aCetina-Alcala, C.V.
856 4 0 _uhttps://drive.google.com/file/d/1i4CJ-5ls9JCul1BtCSjgUqFfHRz3gAN8/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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