绿化防暑有凉方

Group 1 - The city of Hangzhou is facing extreme high temperatures, prompting the West Lake District's comprehensive administrative law enforcement bureau to implement an emergency drought prevention plan to protect urban greenery [2] - Innovative measures such as scientific irrigation, shading protection, and precision drip irrigation are being employed to ensure the health of urban vegetation [2] - Irrigation is scheduled during early morning and late evening to minimize evaporation losses, with workers starting their tasks at 5:00 AM [2] Group 2 - A black shading net has been placed over many plants in streets and parks to protect them from direct sunlight, particularly for sun-sensitive shrubs and newly planted trees [2] - The city has introduced special "water replenishing devices" like drip irrigation bags for trees that require significant water, such as ginkgo and maple [2] - The drip irrigation method, which simulates natural water penetration, significantly enhances the drought resistance of trees by delivering water directly to the root zone, achieving a water-saving rate of 30% to 50% [3]