Group 1 - The core idea of the articles is the utilization of natural snowfall in Beijing's parks to enhance ecological resources and create scenic spots for visitors [1][2] - Beijing's parks are adopting a principle of "leave it if it can stay," preserving the natural snow landscape while transforming snow into ecological nourishment for the land [1] - The Yiheyuan (Summer Palace) has implemented a detailed snow resource utilization plan based on plant characteristics, ensuring optimal use of snow [1] Group 2 - The Beijing Park Management Center reported that 13 municipal parks and the China Garden Museum effectively utilized 70,200 cubic meters of snow during the recent snowfall [2] - Specific measures included creating snow piles around tree bases to avoid impacting visitor access while improving soil moisture [2] - In Shanshan Park, natural snow was intentionally left to allow for slow and even infiltration into the soil, significantly increasing soil moisture for spring plant growth [2]