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北京市森林资源已基本形成了从平原到浅山区、深山区不同地域的、不同层次的综合防护体系,它不仅具有实物价值,而且具有极大的环境价值和社会效益价值。测算结果说明,林地价值、木材和果品产出价值、生态环境价值及社会效益价值四大部分的现值分别为20.8亿、159.16亿、2119.88亿和13.53亿元人民币,总计为2313.37亿元。其中,环境资源价值占总价值的91.63％。森林环境资源价值依大小顺序可排列为:涵养水源、净化环境、生物多样性、固碳制氧转化太阳能、防护林、景观游憩和保育土壤。
The forest resources in Beijing have basically formed a comprehensive protection system at different levels from plain to shallow mountain area and deep mountainous area. It not only has the value of the real thing, but also has great environmental value and social benefit value. The calculation results show that the present value of the value of the forestland, the output value of timber and fruit, the value of the ecological environment and the value of social benefits are respectively 2.28 billion, 15.916 billion, 211.988 billion and 1.353 billion yuan, totaling 231.337 billion yuan. Among them, the value of environmental resources accounted for 91.63% of the total value. The values of forest environmental resources can be arranged in order of size: conservation of water sources, purification of the environment, biodiversity, conversion of carbon sequestration to solar energy, shelterbelts, landscape recreation and conservation of soil.