第二代杉木幼林生态系统生物地球化学循环的研究

Abstract

Abstract: This study was conducted to reveal the characteristics of biological and biogeologi-cal cycles in a 7-year-old second-generation Chinese fir plantation．The results showed that the total amount of N，P，K，Ca and Mg in precipitation in thd watershed is 58.110kg/hm²·a，while the amount in runoff is 42.290kg/hm²·a,the net accumulation of nutrients is 15.820kg/hm²·a．It indicates that the young Chinese fir forest ecosystem is just in the ecological recovery process．

Key words: The second-generation of Chinese fir plantation, Watershed, Nutrient, Biogeochemistry

Tian Dalun;Liu Xuanzhang;Yang Wanhua;Kang Wenxing. STUDIES ON BIOLOGICAL AND BIOGEOCHEMICAL CYCLES IN A YOUNG SECOND-GENERATION CHINESE FIR PLANTATION[J]. , 1997, 33(zk2): 116-123.

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STUDIES ON BIOLOGICAL AND BIOGEOCHEMICAL CYCLES IN A YOUNG SECOND-GENERATION CHINESE FIR PLANTATION

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