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广东鼎湖山季风常绿阔叶林的主要优势乔木树种荷木和黧蒴幼苗生长于自然光照和人工调节ＣＯ２浓度为５００±５０μ１．Ｌ－１或空气ＣＯ２（３５０μ１．Ｌ－１）的气罩中３个月。高ＣＯ２浓度下生长的黧蒴和荷本植株总干物质量分别增加２６．６％和１６．６％，根部增加量最大，地上部分所占的比例降低，根冠比上升，基径增大而株高降低。高ＣＯ２浓度下生长的叶片密度及比叶重增加，叶肉细胞间隙体积减少。单位干重的黧蒴叶片可溶性糖含量、全碳、磷、钾含量在高ＣＯ２浓度下稍为下降，果糖、葡萄糖、蔗糖、全氮、镁含量及Ｎ／Ｃ比明显降低，而全钙含量无明显变化。
The dominant tree species of monsoon evergreen broad-leaved forest in Dinghushan, Guangdong Province, were grown under natural light and artificial CO2 concentration of 500 ± 50μ1. L-1 or air CO2 (350 μl1.L-1) for 3 months. The total dry matter weight of C. chinensis and G. xylostella grown in high CO2 concentration increased by 26.6% and 16.6% respectively, with the highest increase in root and the decrease in the proportion in aerial parts, the increase in root-shoot ratio and increase in base diameter Plant height is reduced. Leaf density and specific leaf weight increased under high CO2 concentration, while mesophyll cell volume decreased. The content of soluble sugar, total carbon, phosphorus and potassium in leaves per unit weight of dry weight decreased slightly under high CO2 concentration, while the content of fructose, glucose, sucrose, total nitrogen, magnesium and N / C decreased obviously, obvious change.