02068nam a2200217Ia 4500003001000000005001700010040000900027245017600036490005000212520122600262650002401488650002501512650002201537650001801559700001801577700001501595700002701610700001601637856015601653008004101809MX-MdCICY20260521091304.0  cCICY10aNitrogen Fixation in Preserved, Reforested, Naturally Regenerated and Impaired Mangroves as an Indicator of Functional Restoration in Mangroves in an Arid Region of Mexico0 vRestoration Ecology, 19(201), p.236-244, 20103 aAlthough several damaged mangrove ecosystems have been restored worldwide, so far, it has not been established whether a restored mangrove system regains all the functional properties of preserved mangroves. This study measured nitrogen fixation as an indicator of whether disturbed mangroves that were reforested or naturally regenerated fully recovered from this disturbance at a functional level. Rates of nitrogen fixation were measured for one year in impaired, preserved, reforested, and naturally regenerated mangroves dominated by the black mangrove (Avicennia germinans). There was no significant difference in rates of nitrogen fixation among preserved and adjacent reforested and naturally regenerated mangroves, but a significant reduction occurred in an impaired mangrove. Nitrogen fixation was mainly controlled by pH, salinity, and temperature. The highest rates of nitrogen fixation occurred in summer at pH values less than 6.4, whereas the impaired mangrove had higher pH and salinity and had very low nitrogen fixation activity. These results suggest that nitrogen fixation can be used as an ecological indicator of the success of reforestation and as a sensitive measure of perturbations in mangroves.14aAVICENNIA GERMINANS14aFUNCTION RESTORATION14aNITROGEN FIXATION14aREFORESTATION12aVovides, A.G.12aBashan, Y.12aLópez-Portillo, J.A.12aGuevara, R.40uhttps://drive.google.com/file/d/1pbn05IeL8FlmFWe9zCv2Vs4fFPZhDL-M/view?usp=drivesdkzPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx250602s9999    xx |||||s2   |||| ||und|d