Large-scale reforestation can increase water yield and reduce drought risk for water-insecure regions in the Asia-Pacific.
Glob Chang Biol
; 28(21): 6385-6403, 2022 11.
Article
en En
| MEDLINE
| ID: mdl-36054815
ABSTRACT
Large-scale reforestation can potentially bring both benefits and risks to the water cycle, which needs to be better quantified under future climates to inform reforestation decisions. We identified 477 water-insecure basins worldwide accounting for 44.6% (380.2 Mha) of the global reforestation potential. As many of these basins are in the Asia-Pacific, we used regional coupled land-climate modeling for the period 2041-2070 to reveal that reforestation increases evapotranspiration and precipitation for most water-insecure regions over the Asia-Pacific. This resulted in a statistically significant increase in water yield (p < .05) for the Loess Plateau-North China Plain, Yangtze Plain, Southeast China, and Irrawaddy regions. Precipitation feedback was influenced by the degree of initial moisture limitation affecting soil moisture response and thus evapotranspiration, as well as precipitation advection from other reforested regions and moisture transport away from the local region. Reforestation also reduces the probability of extremely dry months in most of the water-insecure regions. However, some regions experience nonsignificant declines in net water yield due to heightened evapotranspiration outstripping increases in precipitation, or declines in soil moisture and advected precipitation.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Agua
/
Sequías
Tipo de estudio:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
País/Región como asunto:
Asia
Idioma:
En
Revista:
Glob Chang Biol
Año:
2022
Tipo del documento:
Article
País de afiliación:
Singapur