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森林经营一般受三个基本原则的约束(1) 森林培育(造林)、(2) 环境 (3)社会经济。几年前,森林培育和社会经济条件是主导因子。但是,今天森林经营的社会条件、环境和生态的影响在决定森林经营措施上的作用越来越大。例如,在美国林区1969年的国家环境保护法对森林经营有着重要的影响。这个法律的目的是:(1) 助长人与环境的协调。(2)予防和排除环境的恶化。(3) 加深了解生态
Forest management is generally governed by three basic principles: (1) forest cultivation (afforestation), (2) environment (3) social economy. A few years ago, forest cultivation and socio-economic conditions were the dominant factors. However, the social conditions, environmental and ecological impacts of forest management today play an increasingly important role in determining forest management practices. For example, the 1969 National Environmental Protection Law in the United States Forest District has a significant impact on forest management. The purpose of this law is: (1) to promote the coordination of people and the environment. (2) to prevent and eliminate the deterioration of the environment. (3) deepen understanding of ecology