CAJ | 학술논문

为了探讨不同立地因子对热区坡柳（ Dodonaea viscosa L．）生长特征的影响，确定影响坡柳生长主导因子，在对坡柳在云南热区的资源分布进行初步踏查的基础上，选择14个地区开展了坡柳株高、地径、冠幅及生物量的调查，并进行了统计分析。结果表明：部分地区坡柳生长差异显著，其中大姚地区生物量最高，达到14．14 t· hm－2；低海拔区坡柳平均地径、平均株高及生物量均大于高海拔地区，分别为18．28 mm、179．16 cm和8．94 t· hm－2，但海拔高度对坡柳生物量及生长特征的影响未达到显著水平；坡柳总生物量、平均地径和平均株高均随坡位变化自下而上逐渐减少，下坡位生物量最大，达到10．01 t· hm－2，且上坡位生物量、平均地径及平均株高显著低于中坡位、下坡位（ P＜0．05）；坡向对坡柳生长影响不明显，但是阴坡地段坡柳的生长指标平均地径、平均株高和总生物量都要优于阳坡地段。因此，可以认为影响坡柳生长的主导立地因子是坡位，坡柳最适宜的立地条件为低海拔，下坡位和阴坡。
위료탐토불동입지인자대열구파류（ Dodonaea viscosa L．）생장특정적영향，학정영향파류생장주도인자，재대파류재운남열구적자원분포진행초보답사적기출상，선택14개지구개전료파류주고、지경、관폭급생물량적조사，병진행료통계분석。결과표명：부분지구파류생장차이현저，기중대요지구생물량최고，체도14．14 t· hm－2；저해발구파류평균지경、평균주고급생물량균대우고해발지구，분별위18．28 mm、179．16 cm화8．94 t· hm－2，단해발고도대파류생물량급생장특정적영향미체도현저수평；파류총생물량、평균지경화평균주고균수파위변화자하이상축점감소，하파위생물량최대，체도10．01 t· hm－2，차상파위생물량、평균지경급평균주고현저저우중파위、하파위（ P＜0．05）；파향대파류생장영향불명현，단시음파지단파류적생장지표평균지경、평균주고화총생물량도요우우양파지단。인차，가이인위영향파류생장적주도입지인자시파위，파류최괄의적입지조건위저해발，하파위화음파。
We investigated the influence of different site factors on the growth characteristic of Dodonaea viscosa L.in the hot re-gions, and the factors on the growth of the D.viscosa.We selected 14 regions as the sampling plots based on the extensive field survey on the resource of main distribution area of D.viscosa in Yunnan Province to measure the plant height , basal diameter, crown diameter and biomass of D.viscosa in each plot.The growth characteristics of D.viscosa were significant in some sampling plots.Biomass in Daoyao County was the highest among all sampling plots with the amount of 14.14 t· hm-2 .The mean diameter , average height and biomass of low altitudes were 18.28 mm, 179.16 cm and 8.94 t· hm-2 , re-spectively .They were higher than those of high altitudes , but not reached statistical significant level .The mean diameter , height and increased with the decrease of slope position .The highest biomass were in downhill with amount of 10.01 t· hm-2 , the mean diameter , height and biomass at upper slope were significant lower than those at downhill and middle slope (P<0.05).The effect of slope aspect on the growth of D.viscosa was insignificant.However, the growth indexes including mean diameter , height and biomass on the shady slope were slightly higher than those on the sunny slope .The determinate site factor was slope position , and the best site factor for D.viscosa was the combination of lower altitude , downhill and shady slope .