Effects of land-use changes on climate in southern South America
In the last decades, the agricultural areas over La Plata Basin and the Argentinean Pampas have been extended deforestation. With the aim of understanding the potential impacts of land-use changes over the South American climate, several simulations with the regional climate model MM5 were carried o...
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2012
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| LEADER | 12093caa a22013337a 4500 | ||
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| 001 | PAPER-9182 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518203903.0 | ||
| 008 | 190411s2012 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-84869767432 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Pessacg, N.L. | |
| 245 | 1 | 0 | |a Effects of land-use changes on climate in southern South America |
| 260 | |c 2012 | ||
| 270 | 1 | 0 | |m Pessacg, N.L.; Centro Nacional Patagónico (CENPAT), CONICET, Puerto Madryn, Chubut U9120ACF, Argentina; email: pessacg@cenpat.edu.ar |
| 506 | |2 openaire |e Política editorial | ||
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| 504 | |a Solman, S., Núñez, M., Cabré, M.F., Regional climate change experiments over southern South America. I. Present climate (2007) Clim Dyn, 30, pp. 533-552 | ||
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| 520 | 3 | |a In the last decades, the agricultural areas over La Plata Basin and the Argentinean Pampas have been extended deforestation. With the aim of understanding the potential impacts of land-use changes over the South American climate, several simulations with the regional climate model MM5 were carried out for different idealized land-use scenarios representing agricultural expansion, reforestation and desertification, respectively. Results show a significant warming and drying when forests were replaced by bare soils due to an increase in the net radiation budget and a reduction in the latent heat flux. However, the replacement of forests by crops resulted in a decrease in the net radiation budget at the surface, together with a decrease in the latent and sensible heat fluxes, leading to a significant cooling over central and eastern Argentina and drying over Bolivia and western Paraguay. Finally, the shift from the actual land cover to crops produced a cooling and wetting mainly over northern Argentina, Paraguay and part of Bolivia due to a decrease in the net radiation budget and sensible heat flux and an increase in the latent heat flux. The regional response for these idealized scenarios exceeds the area where the land-use was changed, indicating that non-local mechanisms are important. A reduction in the roughness length when forest is replaced by either crops or bare soil leads to an increase in the northerly winds, which modifies the moisture flux convergence patterns and hence affects precipitation. © Inter-Research 2012. |l eng | |
| 593 | |a Centro Nacional Patagónico (CENPAT), CONICET, Puerto Madryn, Chubut U9120ACF, Argentina | ||
| 593 | |a Centro de Investigaciones del Mar y la Atmósfera (CIMA/CONICET-UBA), DCAO/FCEN, UMI IFAECI/CNRS, Buenos Aires C1428EGA, Argentina | ||
| 690 | 1 | 0 | |a FEEDBACKS SOIL-ATMOSPHERE |
| 690 | 1 | 0 | |a LAND USE/LAND COVER |
| 690 | 1 | 0 | |a REGIONAL CLIMATE MODEL |
| 690 | 1 | 0 | |a AGRICULTURAL AREAS |
| 690 | 1 | 0 | |a AGRICULTURAL EXPANSION |
| 690 | 1 | 0 | |a BARE SOILS |
| 690 | 1 | 0 | |a LA PLATA BASIN |
| 690 | 1 | 0 | |a LAND COVER |
| 690 | 1 | 0 | |a LAND USE/LAND COVER |
| 690 | 1 | 0 | |a LAND-USE CHANGE |
| 690 | 1 | 0 | |a LAND-USE SCENARIO |
| 690 | 1 | 0 | |a MOISTURE FLUX CONVERGENCES |
| 690 | 1 | 0 | |a NET RADIATION |
| 690 | 1 | 0 | |a NONLOCAL |
| 690 | 1 | 0 | |a POTENTIAL IMPACTS |
| 690 | 1 | 0 | |a REGIONAL CLIMATE MODELS |
| 690 | 1 | 0 | |a REGIONAL RESPONSE |
| 690 | 1 | 0 | |a ROUGHNESS LENGTH |
| 690 | 1 | 0 | |a SENSIBLE HEAT FLUX |
| 690 | 1 | 0 | |a CLIMATE MODELS |
| 690 | 1 | 0 | |a CLIMATOLOGY |
| 690 | 1 | 0 | |a CROPS |
| 690 | 1 | 0 | |a DEFORESTATION |
| 690 | 1 | 0 | |a LAND USE |
| 690 | 1 | 0 | |a REFORESTATION |
| 690 | 1 | 0 | |a SOILS |
| 690 | 1 | 0 | |a HEAT FLUX |
| 690 | 1 | 0 | |a BARE SOIL |
| 690 | 1 | 0 | |a CLIMATE CHANGE |
| 690 | 1 | 0 | |a CLIMATE EFFECT |
| 690 | 1 | 0 | |a CLIMATE FEEDBACK |
| 690 | 1 | 0 | |a CLIMATE MODELING |
| 690 | 1 | 0 | |a COOLING |
| 690 | 1 | 0 | |a DEFORESTATION |
| 690 | 1 | 0 | |a DESERTIFICATION |
| 690 | 1 | 0 | |a LAND COVER |
| 690 | 1 | 0 | |a LAND USE CHANGE |
| 690 | 1 | 0 | |a LATENT HEAT FLUX |
| 690 | 1 | 0 | |a NATURE-SOCIETY RELATIONS |
| 690 | 1 | 0 | |a NET RADIATION |
| 690 | 1 | 0 | |a PRECIPITATION (CLIMATOLOGY) |
| 690 | 1 | 0 | |a REGIONAL CLIMATE |
| 690 | 1 | 0 | |a SENSIBLE HEAT FLUX |
| 690 | 1 | 0 | |a WARMING |
| 690 | 1 | 0 | |a LA PLATA BASIN |
| 690 | 1 | 0 | |a PAMPAS |
| 651 | 4 | |a SOUTHERN SOUTH AMERICA | |
| 651 | 4 | |a ARGENTINA | |
| 651 | 4 | |a PARAGUAY | |
| 651 | 4 | |a SOUTH AMERICA | |
| 651 | 4 | |a ARGENTINA | |
| 700 | 1 | |a Solman, S. | |
| 773 | 0 | |d 2012 |g v. 55 |h pp. 33-51 |k n. 1 |p Clim. Res. |x 0936577X |w (AR-BaUEN)CENRE-1001 |t Climate Research | |
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