拖拉机对集材道土壤及苗木生长影响的研究

Abstract

Abstract: Continuously moving skidders,mainly J-50 tracked skidder and J-80wheeled,are widely used in extracting operations in the forests of northeastern China and result in soil erosion and humus loss which seriously affect stand regeneration and growth of remaining crops.Using Grey Theory an investigation was undertaken to analyze soil compaction and seedling growth in the stands under such a harvesting system.It was found that extracting operation caused less damage to soil structure and less effects on the height growth of seedlings by the use of tracked skidders than wheeled ones.

Key words: Extraction, Skidders, Soil structure, Growth of remaining crops

Zhao Xiuhai;Fan Xiuhua;Zhang Weisen. EFFECTS OF EXTRACTING ON SOIL STRUCTURE AND REMAINING CROPS[J]. , 1994, 30(2): 158-165.

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EFFECTS OF EXTRACTING ON SOIL STRUCTURE AND REMAINING CROPS

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