China Planted 78B New Trees Affecting Its Water Cycle
4 hours ago
- #reforestation
- #climate-change
- #hydrology
- Reforestation has benefits but can cause unintended consequences, as seen in China's large-scale regreening efforts.
- China's massive tree-planting initiatives, like the Great Green Wall, have altered hydrology, shifting precipitation and reducing water availability in eastern and northwestern regions.
- The change is driven by increased evapotranspiration (evaporation and transpiration), leading to more moisture moving to the Tibetan Plateau while drying other areas.
- Land use changes, such as converting grasslands to forests, impact water availability, precipitation, and evapotranspiration at varying rates.
- China's water distribution is uneven, with northern regions having most population and arable land but limited water, highlighting the need to consider hydrological cycles in reforestation planning.