摘要
为进一步了解不同套种模式对杉木人工林生长及土壤的影响,分别以纯林杉木模式、楠木-杉木套种模式进行试验。结果显示:套种模式下杉木的平均树高略低于纯林模式,较纯林模式(18.53 m)降低了0.09%,二者之间无显著差异;套种模式下杉木的平均胸径显著高于纯林模式,较纯林模式下(24.98 cm)提高了10.13%;纯林模式下20~40 cm采样深度时土壤含水量最高(227.13 g/kg);套种模式下0~20 cm采样深度时土壤最大持水量最高(553.71 g/kg);纯林模式下20~40 cm采样深度时土壤毛管持水量最高(411.38 g/kg)。
In order to further understand the effects of different interplanting patterns on the growth and soil of Cuninghamia lanceolata plantation,pure Cuninghamia lanceolata pattern and Phoebe zhennan-Cuninghamialanceolata interplanting pattern were tested respectively.The results showed that the average tree height of Cuninghamia lanceolata in interplanting mode was slightly lower than that in pure forest mode(18.53 m),which decreased by 0.09%,and there was no significant difference between the two.The average DBH of Cuninghamia lanceolata in interplanting mode was significantly higher than that in pure forest mode(24.98 cm),which was 10.13%higher than that in pure forest mode.The highest soil water content(227.13 g/kg)was obtained at the sampling depth of 20~40 cm in pure forest mode.The maximum water holding capacity(553.71 g/kg)was the highest at the sampling depth of 0~20 cm in interplanting mode.The maximum capillary water capacity(411.38 g/kg)was obtained at the sampling depth of 20~40 cm in pureforestmode.
作者
杨勇
Yang Yong(Xingan Forestry Bureau,Xing'an 541399,Guangxi Zhuang Autonomous Region,China)
出处
《农业技术与装备》
2023年第10期162-163,共2页
Agricultural Technology & Equipment
关键词
杉木人工林
种植模式
土壤
含水量
持水量
毛管持水量
Cuninghamia lanceolata plantation
planting pattern
soil
water content
water capacity
capillary water capacity
