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本文以杉木人工林为例，通过8种相对生长方程的比较分析，论证了森林生物量调查中选择相对生长方程（曲线）自变量因子的依据。并指出在大范围的调查中可用二元生物量表导算出一元生物量表。
In this paper, taking Cunninghamia lanceolata plantation as an example, the basis of choosing relative growth equation (curve) independent variable factor in forest biomass survey is demonstrated by comparative analysis of eight relative growth equations. And pointed out that in a wide range of surveys, bivariate biomass tables can be used to guide the calculation of a unary biomass scale.