Carbon sequestration by Quercus ilex L. and Quercus pubescens Willd. and their contribution to decreasing air temperature in Rome Export

@article{citeulike:1105221, abstract = {Carbon sequestration capability by Quercus ilex L and Quercus pubescens Willd., widely distributed in the city of Rome, and their contribution to decreasing air temperature were investigated. Crown volume is the most significant (p < 0.01) variable explaining variation of air temperature below the tree crown. Q. pubescens gives a higher contribution to decreasing air temperature during the hottest months, due to its inherent larger crown volume than Q. ilex (252 ± 19 and 533 ± 52 m3, respectively for the large size). Moreover, our results show the existence of a strong urban carbon dioxide dome with a peak CO2 concentration (on an average 432 ± 37 ppm) at polluted sites, 16\% greater than at control sites. Total carbon sequestration is 84 ± 12 and 111 ± 9 Kg year−1 of CO2 for the small Q. ilex and Q. pubescens tree size, respectively, and 151 ± 10 and 185 ± 7 Kg year−1 of CO2 for the large Q. ilex and Q. pubescen tree size, respectively. Q. pubescens, by its higher total photosynthetic leaf surface area (39\% higher than Q. ilex) and its higher mean yearly photosynthetic rates (48\% higher than Q. ilex) seems to have a greater role than Q. ilex. However, taking into account the leaf longevity (i.e. 12 ± 3 months for Q. ilex and 4 ± 2 months for Q. pubescens), the evergreen species, by its continuous photosynthetic activity, contributes to reduce CO2 throughout the year, and in particular during the winter months, when traffic volume has a pick, than Q. pubescens.}, author = {Gratani, Loretta and Varone, Laura}, citeulike-article-id = {1105221}, citeulike-linkout-0 = {http://www.urbanforestrysouth.org/Resources/Library/carbon-sequestration-by-quercus-ilex-l-and-quercus-pubescens-willd-and-their-contribution-to-decreasing-air-temperature-in-rome}, comment = {urban/suburban}, journal = {Urban Ecosystems}, keywords = {carbon, carbon-sequestration, oak, quercus, temperature, urban}, pages = {27--37}, posted-at = {2007-02-13 15:47:15}, priority = {0}, title = {Carbon sequestration by Quercus ilex L. and Quercus pubescens Willd. and their contribution to decreasing air temperature in Rome}, url = {http://www.urbanforestrysouth.org/Resources/Library/carbon-sequestration-by-quercus-ilex-l-and-quercus-pubescens-willd-and-their-contribution-to-decreasing-air-temperature-in-rome}, volume = {9}, year = {2006} }

TY - JOUR ID - citeulike:1105221 L3 - citeulike-article-id:1105221 N2 - Carbon sequestration capability by Quercus ilex L and Quercus pubescens Willd., widely distributed in the city of Rome, and their contribution to decreasing air temperature were investigated. Crown volume is the most significant (p < 0.01) variable explaining variation of air temperature below the tree crown. Q. pubescens gives a higher contribution to decreasing air temperature during the hottest months, due to its inherent larger crown volume than Q. ilex (252 ± 19 and 533 ± 52 m3, respectively for the large size). Moreover, our results show the existence of a strong urban carbon dioxide dome with a peak CO2 concentration (on an average 432 ± 37 ppm) at polluted sites, 16% greater than at control sites. Total carbon sequestration is 84 ± 12 and 111 ± 9 Kg year−1 of CO2 for the small Q. ilex and Q. pubescens tree size, respectively, and 151 ± 10 and 185 ± 7 Kg year−1 of CO2 for the large Q. ilex and Q. pubescen tree size, respectively. Q. pubescens, by its higher total photosynthetic leaf surface area (39% higher than Q. ilex) and its higher mean yearly photosynthetic rates (48% higher than Q. ilex) seems to have a greater role than Q. ilex. However, taking into account the leaf longevity (i.e. 12 ± 3 months for Q. ilex and 4 ± 2 months for Q. pubescens), the evergreen species, by its continuous photosynthetic activity, contributes to reduce CO2 throughout the year, and in particular during the winter months, when traffic volume has a pick, than Q. pubescens. JF - Urban Ecosystems EP - 37 TI - Carbon sequestration by Quercus ilex L. and Quercus pubescens Willd. and their contribution to decreasing air temperature in Rome VL - 9 SP - 27 KW - carbon KW - carbon-sequestration KW - oak KW - quercus KW - temperature KW - urban N1 - urban/suburban AU - Gratani, Loretta AU - Varone, Laura PY - 2006/// UR - http://www.urbanforestrysouth.org/Resources/Library/carbon-sequestration-by-quercus-ilex-l-and-quercus-pubescens-willd-and-their-contribution-to-decreasing-air-temperature-in-rome ER -