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一、林业区划与树种区划林业区划是按照区域的自然规律和国民经济发展的需要,科学地、概括地揭示地域的共同性和区间差异的一种手段,也是各地充分合理地利用自然条件和森林资源,科学地发展林业生产的依据。林业区划的原则是:自然条件包括气候、地貌、土壤、水文、地质、植被等条件的类似性;森林资源如森林分布、树种组成、森林蓄积、树龄组成等的类似性;经济条件的类似性,因为经济条件是资源开发利用的保证;国民经济对林业的要求、林业发展方向与营林措施一致性;林业生产潜力的类似性;地块或行政区域的完整性。此外,林业区划要适当考虑历史状况,从现有条件、状况和特点出发,注意主次,综合和实践性。
I. Division of Forests and Division of Tree Species Forestry zoning is a means of revealing the commonalities and range differences of a region scientifically and broadly in accordance with the natural laws of the region and the needs of the development of the national economy. It is also a means to make full and rational use of natural conditions and forests Resources, scientific basis for the development of forestry. The principle of forestry zoning is that the natural conditions include similarities in climatic conditions, geomorphology, soil, hydrology, geology, vegetation and other conditions; similarities in forest resources such as forest distribution, tree species composition, forest stock, age composition, etc .; similarities in economic conditions , Because the economic conditions are the guarantee of the exploitation and utilization of resources; the requirements of the national economy on forestry, the consistency of forestry development direction and measures of forest management; the similarities of forestry production potential; the integrity of plots or administrative regions. In addition, the demarcation of forestry should give due consideration to the historical conditions, proceed from the existing conditions, conditions and characteristics, pay attention to the primary and secondary, comprehensive and practical.