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Dynamics of litterfall and its decomposition and nutrient return of shootused Dendrocalamus latiflorus in Mountainous areas of Fujian Province

QIU Erfa1,CHEN Zhuomei2,ZHENG Yushan3,HONG Wei3,HUANG Baolong4    

  1. 1Research Institute of Forestry,Chinese Academy of Forestry,Beijing 100091, China;2Zhejiang Academy of Forestry,Hangzhou 310029,China;3College of Forestry,Fujian Agriculture and Forestry University,Fuzhou 350002,China;4College of Forestry Resource and Environment,Nanjing Forestry University,

    Nanjing 210037,China

  • Received:2003-08-31 Revised:2004-09-10 Online:2005-05-18

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Abstract: This paper studied the dynamics of nutrients in the litters of shoot-used Dendrocalamus latiflorus planted in Nanjing State-owned Forest Farm of Fujian Province.The results showed that the litterfall as well as its nutrient concentration and return varied obviously with seasons,and had a doublepeak curve change.The weight loss during litter decomposition was very fast at first,and then slowed down.There was a negative exponent correlation between remained weight and decomposition time.During decomposition,the concentrations of N and P in litter showed a trend of increase-decreaseincrease,while the K loss was intensive at the early stage,gently at midstage,and slight at late stage.

Key words: Eucalyptus plantation soil, Soil enzyme, Soil trace element, Canonical correlation analysis