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《Journal of Northeast Forestry University》 1979-01
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Shi Jia-shen  
Due to the complexity and variousness of its natural conditions, Heilongjiang Province has an uneven allocation of forest resources. Thus, it is necessary to conduct the forestry division in the light of the project for the development of forestry in order to fully meet the needs of the natioual economy iu forestry and dispose the forests in a way suitably to local conditions.This article briefly describes the past research work in this field.The article puts forward the following principles:1、The similarity of natural conditions and the forest resources. In respect。the natural conditions, the average meteorological data of the decade from 1961—1970 from this province are referred;and calculations and illustiation are made inaccordence with Ivanov's hnmidity index and Thornthwaite's P—E index, asWell as in comparison With the aridity index. At the same time, the soil andgeomorphological eonditions are consultad and the present situation of the forestresources is taken into consideration;2、The harmony of the needs of the national econonical developments and the orientation of the development of the forestry;3、The harmony of the sitvicultural system or methods of the soil—melioration;4、The integrity of the massif.This province is divided into 4 regions and 27 districts.
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