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毛竹叶片Pn与光照强度(L)、气温(T)多元相关呈极显著水平,其回归方程可作为光合速率估算的模型;日光合量与平均气温呈极显著线性正相关,呼吸速率与气温呈极显著相关,其回归方程均可作为叶片日光合量、呼吸速率的估算模型。毛竹的年净光合量、年呼吸量估算结果分别为1.81× 104、2.00×104 mgCO2·dm-2·a-1。
Phyllostachys pubescens leaves were significantly correlated with light intensity (L) and temperature (T). The regression equation could be used as a model to estimate photosynthetic rate. The photosynthetic rate and the mean temperature had a significant linear positive correlation with the respiratory rate and temperature The regression equation can be used as an estimation model of leaf photosynthesis and respiration rate. Annual net photosynthesis, annual respiration estimates were 1.81 × 104,2.00 × 104 mgCO2 · dm-2 · a-1.