Water supply

Basic Introduction to Zuogong WalnutsZuogong Walnuts are a specialty of Zuogong County in the Tibet Autonomous Region. They are neatly arranged and have flat or slightly recessed suture lines. Their shape is round or oval, with large fruits and full kernels that are yellowish-white in color and have a crisp, fragrant taste. The county is crisscrossed by numerous rivers, and the abundant local water resources ensure good growth of walnut trees, making them strong. The ample water supply provides an ideal environment for the growth of Zuogong Walnuts, resulting in full-bodied fruits with plump kernels.Zuogong County has a semi-arid temperate climate typical of southeastern Tibet, with small annual temperature differences and relatively high heat utilization efficiency. Summer sees concentrated rainfall, with maximum precipitation reaching approximately 683.2 millimeters. This concentrated rainfall meets the needs of walnut growth and development. The fruits of Zuogong Walnuts start to swell in late July. The county receives an annual total solar radiation of 588 kJ/cm² and has 2,186 hours of annual sunshine, with even longer daylight hours during summer and autumn, often exceeding ten hours per day. This is conducive to the accumulation of nutrients and high yields, as well as contributing to the unique…