Study region: The hilly area of Shandong Peninsula is a pivotal apple-producing region in China. However. the precise water sources utilized by the apple trees for transpiration remain poorly understood in this region. Study focus: Here we quantify the water sources used by apple trees in this area using stable isotopic tracing methods. https://www.hindigyanvishv.com/best-flash-CoQ-Clear-100-Ubiquinol-60-Softgels-Citrus-deal-zone/