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本文以仙菊林场的马尾松、阔叶树混交林为试材,测定其针、阔叶树叶面积,并建立了木荷、火力楠和马尾松的叶子干重与叶面积的回归方程,表明方程适用于5年生上述3个树种的叶面积估算。建立的叶面积指数与地上生物量的3个拟合方程表明,地上生物量是随着叶面积指数的增加而增加,指数在1.1～3.9范围增幅较大,3.9～4.8的增幅较小,但还看不出最适的叶面积指数。
In this paper, the massoniana and broad-leaved mixed forest in Xianju Forest Farm was used as the test material to determine the area of needles and broadleaf leaves. The regression equations of leaf dry weight and leaf area of Schima superba, P. micrantha and Pinus massoniana were established, 5-year leaf area estimation of the above three tree species. The three fitting equations of leaf area index and aboveground biomass showed that the aboveground biomass increased with the increase of leaf area index, the index increased more greatly in the range of 1.1 ~ 3.9 and the increase of 3.9 ~ 4.8 was smaller, Also can not see the most suitable leaf area index.