杉木萌芽林冠下营造细柄阿丁枫对土壤腐殖质及结构性状的影响

对杉木萌芽林冠下营造细柄阿丁枫后形成的杉阔混交林土壤腐殖质及土壤结构性状研究结果表明 ,杉阔混交林土壤有机质和腐殖质含量增加 ,腐殖质中HA/HF 值和E4值升高 ,E4/E6值变小 ,土壤松结合态和紧结合态腐殖质含量及比值增加 ,土壤腐殖质活化度增强 ,土壤结构和水分性状得以改善。

Effect of planting Slenderstalk altingia under the canopy of sprout of Chinese fir on the soil humus and soil structure

The soil humus and soil structure were observed by planting Slenderstalk altingia under the canopy of sprout of Chinese fir on mixed stands of Chinese fir and broadleaved tree. The results indicate that the contents of soil organic matter and humus are increased, the H A/H F and E 4 value of humus are raised and E 4/E 6 value is descended, loosely and tightly combined humus contents and its ratio are ascended and the activation of soil humus is strengthened, the soil structure and moisture properties have been improved obviously after the transformed mixed stand of Slenderstalk altingia.