CAJ | 학술논문

采用挖土柱法研究了安徽黄山地区毛竹（Phyllostachys edulis）根系生物量的分布规律，连续观测了根系生物量的季节变化，并分析了根系生物量与温度、降雨等环境因子相关性。研究结果表明：毛竹林的根系生物量平均为12.891 t?hm-2，88.8%的根系分布在0-40 cm土层，随土层加深根系生物量逐渐减少，0-20 cm土层中的生物量占总生物量的62.3%，分别是20-40 cm与40-60 cm根系生物量的2.35倍与5.56倍；根系总生物量具有明显的季节动态，变化范围为7.686~17.386 t?hm-2，表现为单峰型，7月份最高，2月份最低；不同深度土壤中毛竹根系生物量也存在明显的季节动态，均从2月份开始上升，达到最大值后逐渐下降，与总生物量的季节变化规律类似，其中0-20 cm与20-40 cm土层根系生物量最大值出现在7月，与总生物量一致，而40-60 cm土层最大值出现在6月，存在一定偏差；毛竹林根系生物量与气温因子显著相关，三次拟合方程为Y=0.0001X3-0.0013X2+0.2398X+7.6022（R2=0.956），与降雨量因子无显著相关性。
채용알토주법연구료안휘황산지구모죽（Phyllostachys edulis）근계생물량적분포규률，련속관측료근계생물량적계절변화，병분석료근계생물량여온도、강우등배경인자상관성。연구결과표명：모죽림적근계생물량평균위12.891 t?hm-2，88.8%적근계분포재0-40 cm토층，수토층가심근계생물량축점감소，0-20 cm토층중적생물량점총생물량적62.3%，분별시20-40 cm여40-60 cm근계생물량적2.35배여5.56배；근계총생물량구유명현적계절동태，변화범위위7.686~17.386 t?hm-2，표현위단봉형，7월빈최고，2월빈최저；불동심도토양중모죽근계생물량야존재명현적계절동태，균종2월빈개시상승，체도최대치후축점하강，여총생물량적계절변화규률유사，기중0-20 cm여20-40 cm토층근계생물량최대치출현재7월，여총생물량일치，이40-60 cm토층최대치출현재6월，존재일정편차；모죽림근계생물량여기온인자현저상관，삼차의합방정위Y=0.0001X3-0.0013X2+0.2398X+7.6022（R2=0.956），여강우량인자무현저상관성。
The root biomass of Phyllostachys edulis in Huangshan was studied by excavating soil column method, the seasonal variations of root biomass were monitored continuously ,and the correlation between root biomass and temperature and rainfall were analyzed. The results showed that the average biomass of roots was 12.891 t?hm-2, 88.8%of the roots concentrated in the soil layer of 0-40 cm, the root biomass decreased as depth increased, the root in 0-20 cm layer occupied 62.3%, which was 2.35 and 5.56 times more than 20-40 cm layer and 40-60 cm layer, respectively. The total root biomass had obviously seasonal variation and their variation ranges were 7.686~17.386 t?hm-2, the highest was in July and the lowest was in February. The root biomass in different soil layers had similar seasonal variation patterns with total root biomass, which began to increase from February until reached a maximum, and then decreased gradually. The maximum of root biomass in 0-20 cm and 20-40 cm soils appeared in July, the same as total biomass. While the maximum of root biomass in 40-60 cm appeared in June, had some deviations from the total. The root biomass was significantly associated with temperature, the cubic curve-fitting equation was Y=0.000 1X3-0.001 3X2+0.239 8X+7.602 2(R2=0.956), the root biomass had no significant correlation with rainfall.