太行山区油松残次林采脂试验研究

›› 1993, Vol. 29 ›› Issue (4): 384-388.

• 研究简报 • Previous Articles

THE EXPERIMENTAL RESEARCH INTO DIPPING FROM CHINESE PINE IN DETERIORATED FOREST IN TAIHANGSHAN MOUNTAIN AREA

Ren Mantian,Zhang Fuji,Wu Yubai

Forestry Technique Spreaing Station Shanxi Province, Taiyuan 030012;Forestry Scientific Research Institute Shanxi Province, Taiyuan 030012;Forest Management Bureau of Zhongtiao Mountain Shanxi Province, Houma 043008

Received:1992-06-01 Revised:1900-01-01 Online:1993-07-25 Published:1993-07-25

Abstract

Abstract: The secretion regulation of pine gum of Chinese pine in deteriorated forest in Taihang mountain area was revealed. The Results show: the pine gumoutput has relations with the temperature in the forest, the DBH, the slopexposure, the dipping wood tapping time and so on. The temperature in theforest and the DBH are both positively correlative with the pine gum output;Using ordinary method, the pine gum output gotten from the shady and semishady slop is 14.7% and 13.9% higher than that from the sunning slop; Thepine gum output per tree using α-NAA is 19. 5% higher than that usingordinary method; The most suitable dipping time is at 7:00-8:00 am in Julyand August.

Key words: Chinese pine, deteriorated forest, secretion regulation of pine gum, flowing speed of pine gum, load rate of the dipping area

Ren Mantian;Zhang Fuji;Wu Yubai. THE EXPERIMENTAL RESEARCH INTO DIPPING FROM CHINESE PINE IN DETERIORATED FOREST IN TAIHANGSHAN MOUNTAIN AREA[J]. , 1993, 29(4): 384-388.

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THE EXPERIMENTAL RESEARCH INTO DIPPING FROM CHINESE PINE IN DETERIORATED FOREST IN TAIHANGSHAN MOUNTAIN AREA

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