分类依据和原则 ( Reason and principle) 14 Cadastral Survey Cadastral Survey Cadastral Surveying and Land Management 《土地利用现状分类》采用二级分类体系。
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本文论述了平潭县植被分类的原则与依据，植被分类的单位和系统。
This paper discusses the principle and basis, the system and unit of vegetational classification in Pingtan county.
依据可复用类建立过程中所遵循的复用原则、分类原则、标准化原则，给出了可复用类的基本模型和建立方法。
According to reuse principles, classify principles, standardization principles in the course of establishing the reusable class, a model of reusable class and methods of establishment are given.
依据分类经营的需要、对现有林进行功能分类，提出功能分类的原则和依据。
According to the need of classification management, the authors. classify the function of the present forest and advance the principle and fundation of the function classification.
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