JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2009, Vol. 33 ›› Issue (01): 143-145.doi: 10.3969/j.jssn.1000-2006.2009.01.031

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Effects of different environment of Karst forest on the biomass of Betula luminifera saplings

YANG Rui1,YU Lifei1*,LUO Yun2,LUO Yuanfei2   

  1. 1.College of Forestry, Guizhou University,Guiyang 550025,China;2.Forestry Bureau of Xiuwen County, Xiuwen 550200,China)Abstract:Biomass of Betula luminifera samplings(2—9 years old, 136 saplings
  • Online:2009-02-18 Published:2009-02-18

Abstract: in different environments of Karst forest for aboveground individual and its allocation among stem, branch and leaf were studied using power function model. The results showed that estimation model of the biomass on the edge of forest was Wo=0.8243(D2H)0.8340, Ws=0.2087(D2H)0.9214,Wb=0.2191(D2H)0.7982,Wl=0.5225(D2H)0.6880 respectively. The estimation model of the biomass in the middle of forest was Wo =1.1848(D2H)0.7479,Ws=0.5151(D2H)0.7887,Wb=0.2048(D2H)0.7626 ,Wl=0.5089(D2H)0.6390 respectively. The estimate model of the biomass isolated forest was Wo=1.2109(D2H)0.7807,Ws=0.3605 (D2H)0.8897,Wb=0.4118(D2H)0.7269,Wl=0.9301(D2H)0.6315 respectively. All correlative coefficients of these functions were in excess of 0.90. The model of basal diameter fitted better than that of height, when basal diameter was in the range of 0.4 —8.0cm.

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