在天目山自然保护区对毛竹在2008和2009年的高生长及2009年的竹蔸、叶、秆、鞭和笋5个器官的含水率进行了测定。结果表明,在大、小年的高生长(Pn)与出土生长时间(t)的关系均呈“S”形曲线;竹蔸的含水率范围为0.33～0.70,竹叶为0.32～0.63,竹秆为0.32～0.58,竹鞭为0.36～0.61,竹笋为0.46～0.90,其中竹笋含水率最高,变化也最大,其次是竹蔸、叶、鞭和秆;毛竹地下部分的含水率范围为0.34～0.62,地上部分为0.33～0.57。 The moisture content of Phyllostachys pubescens grown in 2008 and 2009 and the water content of bamboo, leaves, stalks, whip and shoots in 2009 were measured in Tianmunshan Nature Reserve. The results showed that the relationship between the height growth (Pn) and the unearthed growth time (t) showed a “S” curve in large and small years; the water content of bamboo shoots ranged from 0.33 to 0.70, and the bamboo leaves ranged from 0.32 to 0.63 , Bamboo stalks 0.32 ~ 0.58, bamboo whip 0.36 ~ 0.61, bamboo shoots 0.46 ~ 0.90, of which the highest moisture content of bamboo shoots, the largest changes, followed by bamboo shoots, leaves, whip and stalks; bamboo underground moisture content range 0.34 ~ 0.62, the aerial part is 0.33 ~ 0.57.