本文用主成分分析和回归分析法,研究了柠条灌丛形态结构各项指标与地上部分生物量间的内在关系问题。结果表明,丛高、冠幅与生物量相关最为密切,其二元回归方程为W=0.03286×1.0081~Hx 1.0220~A,r=0.9325。用此编制了青海东部黄土丘陵区柠条林平均标准灌丛生物量表,此表精度高、实用,可直接查表得到柠条灌木林生物产量。 In this paper, principal component analysis and regression analysis were used to study the relationship between the morphological structure and the aboveground biomass. The results showed that the correlation between biomass and crown height was the highest. The binary regression equation was W = 0.03286 × 1.0081 ~ Hx 1.0220 ~ A, r = 0.9325. The average standard shrub biomass survey of Caragana korshinskii in the eastern loess hilly region of Qinghai Province was compiled. The table is of high precision and practicality, and the biological yield of Caragana korshinskii shrub can be obtained directly from the table.