单 位：
丽水市林业科学研究院;丽水莲都林场;莲都区林业技术推广站
关键词：
长喙毛茛泽泻;海拔梯度;种植试验;植株形态;生物量
摘 要：
2016年5月,在浙江省丽水市莲都林场选择不同海拔高度试验地进行濒危植物长喙毛茛泽泻种植试验,同年7-11月观察记录种群变化并计算其繁殖系数。结果表明,长喙毛茛泽泻在海拔80～1 040 m不同海拔种植均可成活,平均繁殖系数2.75～39.80,以海拔840 m的繁殖系数最高;不同海拔之间平均株高、地茎、叶片大小、根系长度、纤匍茎节间长均存在极显著差异;2016年11月测量单株生物量,结果显示单株总生物量0.18～0.25 g,从低海拔到高海拔生境总生物量明显增大,地下部分占比明显增加。
译 名：
Experiment on Plantation of Ranalisma rostratum at Different Altitudes in Lishui
作 者：
LU Li-ping;JI Zhi-li;WANG Wu-jun;DU You-xin;HE Xiao-yong;Liandu Forest Farm of Zhejiang;Liandu Forestry Extension Station;Lishui Institute of Forestry;
关键词：
Ranalisma rostratum;;altitudinal gradient;;planting experiment;;plant morphology;;biomass
摘 要：
Experiments were conducted on planting of endangered Ranalisma rostratum in May of 2016 at different altitude in Liandu Forest Farm of Lishui, Zhejiang province. Observations and determinations were implemented from July to November of the current year on variation of plantings and reproduction coefficient. The results showed that the survival rate of R. rostratum reached 100% at different altitude from 80 m to 1040 m with the mean reproduction coefficients ranged from 2.75 to 39.80, the highest was at 840 m. It had significant differences of mean height, ground diameter, leaf size, root and stolon length among different altitudes. Determination on individual biomass November demonstrated it ranged from 0.18 g to 0.25 g, increasing with altitude, and the proportion of underground biomass increased more significantly than aboveground ones.
