This important discourse provides important guidance for promoting national greening and building a beautiful China. In these important discourses, the concept of green development is in line with the times, and the scientific judgment of the "four reservoirs" of forests keeps pace with the times. It profoundly elucidates the multiple functions and comprehensive benefits of forests, and elucidates the dialectical relationship between humans and nature, economic development, and ecological protection. Forests are reservoirs that nourish green mountains and clear waters. "Reservoir" refers to the multiple ecological functions of forests, including water conservation, flood control, and water purification. Forests have strong water holding and permeability, absorbing and storing rainwater when it rains, and can slowly seep out to replenish runoff during dry seasons. Meanwhile, after being purified by forests, the river water will also become purer. According to statistics, each square kilometer of forest can store 5 to 10 tons of water, and the water content of 10000 hectares of forest land is equivalent to a 3 million cubic meter reservoir. Forests, as a "green barrier", maintain significant ecological security in extremely sensitive and fragile areas of China. Only with high mountains and dense forests can there be flowing water. Planting trees and afforestation is an important way to achieve blue sky, green ground, and clear water. We should continue to increase the "green quantity" of forests, focus on improving the quality of forests, focus on strengthening the "three north" protective forests, afforestation and restoration of forest and grass vegetation in key areas of the Three Rivers Source, increase the proportion of urban forest space, and give better and full play to the ecological benefits of the green natural "reservoir" of forests. Forests are the "treasury", containing mountains of gold and silver. Forests utilize solar energy and land to create ecological capital and green wealth, with renewable resources and biodegradable products. At the same time, the forestry industry covers a wide range, has a long industrial chain, a wide variety of products, and a large employment capacity. The forestry industry can provide over 100000 products closely related to people's clothing, food, housing, and transportation. During the 13th Five Year Plan period, the total number of forest tourism tourists in China reached 7.5 billion, creating a comprehensive social output value of 6.8 trillion yuan. In 2023, the total output value of the national forestry and grass industry reached 9.28 trillion yuan, the annual total output value of the national understory economy exceeded 1 trillion yuan, and the import and export value of forest products exceeded 180 billion US dollars. Plants and trees make a country rich. Green mountains and clear waters are not only natural and ecological wealth, but also social and economic wealth. We should actively explore methods and paths to transform ecological advantages into development advantages, and achieve the organic unity of people's wealth, industrial development, and ecological beauty. Forests are "granaries", consolidating green granaries. Xi