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Forest Felling and Stability of Partial Forest Ecosystem

Dong Xibin, Zhu Yujie(Northeast Forestry University, Harbin 150040, P. R. China); Han Yuhua(Xinglong Forestry Bureau, Heilongjiang); Zhang Yang, Fu Junqing(Youhao Forestry Bureau, Heilongjiang)  
The investigation on reforestation and soil and water conservation were made in the forest areas of Daxing'an Mountains, Xiaoxing'an Mountains and Changbai Mountains. Considering the analysis of great deal data, strip cutting or shelterwood felling was proposed to be used in the forest area of Daxing'an Mountains. When the cutting strip is set to 50-100 m in width and the remaining strip is 50-80 wide, the operation intensity must be controlled in 60%. In Xiaoxing'an Mountain and Changbai Mountain areas, for the stands dominated by spruce and fir, selection cutting less than 25% in intensity should be used, and for broadleaf-Korean pine mixed forest, cutting intensity should be controlled in range of 24%-34%. The emphasis was made on that the cutting ways, felling intensity, skidding ways and the operation seasons should be scientifically chosen according to local conditions so as to reduce the destruction of stability of forest ecosystem to a minimum. 
【Fund】: 黑龙江省自然科学基金
【CateGory Index】: S782.1
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