不同坡位对天然筇竹无性系种群生长的影响研究

研究了不同坡位（上坡位、中坡位、下坡位）的筇竹无性系种群的生长情况。结果表明：坡位不同对筇竹无性系种群生长的影响程度不同，随着坡位的增加，筇竹无性系分株的高度、枝下高、节长、胸径、分枝长、分枝角、叶长、叶宽、叶面积、鞭节长、鞭径、鞭芽数、活芽数、隔离者长度、隔离者节长、隔离者直径相应减少，隔离者总长度则相应增加。在水分和养分资源有效性不同的生境中，筇竹无性系表现出趋利避害的生态适应性对策。

Effects of Different Slope Positions on Qiongzhuea tumidinoda Clone Population Growth

The growth of Qiongzhuea tumidinoda clone population at different slope positions (upper slope, middle slope and lower slope) were studied and analyzed. The results showed that: slope position has different influence on the population growth of Q. tumidinoda clone, and with the increase of slope position, Q. tumidinoda clone population showed decreased ramets height, branch height, section length, ground diameter, diameter, branch length, branch angle, length of rhizome section, size of rhizome diameter, diameter of the spacers and spacers length, while the total spacers length increased. In the habitat with different water and nutrient resource availability, Q. tumidinoda clonal presented the ecological adaptation strategy to seek advantages and avoid harms.