Protected area is a general term. The categories are diverse owing to the difference of established goals, requirements and possessed conditions of the areas, so that the emphases of management are different for them. The classification unit of first class on the basis of principle of managed objective and differentiate classification units of second and third classes are divided according to the principle of protected target, constituting commonly a unified classification system, so as to suit increasingly developed need of protected area cause. Classification unit of first class includes following five categories: strict nature reserve, national park, protected landscape, habitat -species management area, managed resources protected area.
Journal of Plant Resources and Environment