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本文论述了水土保持林体系在山区流域治理中的基础地位和根本作用； 以系统论的观点，讨论了以保持水土、涵养水源为核心的水土保持林体系合理的结构
This paper discusses the basic position and the fundamental role of soil and water conservation forest system in the management of mountainous watersheds. From a systematic point of view, the reasonable structure of water and soil conservation forest system with water and soil conservation as the core is discussed