Effects of Site Preparation Mode on the Productivity of Larix principis-rupprechtii Plantation in Saihanba

Abstract

Abstract: Larix principis-rupprechtii plantation growth conditions,biomass and productivity under diffe-rent site preparation mode were investigated.The results show that successive diameter trees,mean diameter growth increment under mechanical soil preparation conditions is greater than manual site preparation;the total forest tree layer biomass per hectare change is 166.94 t (34a) under mechanical soil preparation condition,the total forest tree layer biomass change is 156.34 t/hm² (35a) under manual site preparation,stand biomass of mechanical soil preparation condition is larger than manual site preparation.Under different soil preparation modes,carbon content of each component has small difference,the carbon content of the trunk is in about 45t/hm²,approximately 50% of the total carbon storage.Carbon content of each component and productivity under mechanical site preparation is larger.Mechanical site preparation can increase average productivity 12.4% more than manual site preparation.

Key words: Larix principis-rupprechtii plantation, site preparation mode, biomass, productivity

CLC Number:

JIA Zhongkui, GONG Ningning, YAO Kai, SI Ruixue, CHENG Sun, WANG Lidong, YOU Weibin, ZHANG Tiantian, LIU Jie, WANG Xiyang. Effects of Site Preparation Mode on the Productivity of Larix principis-rupprechtii Plantation in Saihanba[J]. FOREST RESOURCES WANAGEMENT, 2011, (5): 71-78.

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