摘要
通过马尾松银荆混交林和马尾松纯林的生长量、生物量及土壤理化性质的对比研究,结果表明,马尾松与银荆混交能较大幅度地提高马尾松的生长量和生物量。混交林地土壤容重小、持水性能和通透性能强,土壤养分含量高。马尾松银荆混交改土效果明显。银荆是提高马尾松林分生产力、防止地力衰退的良好伴生树种。
Based on the study of comparison on increment, biomass, soil physical and chemical properties between mixed stand of Pinus massoniana with Acacia dealbata Link and pure stand of Pinus massoniana, the results showed that the mixed stand of Pings massoniana with Acacia dealbata could dramatically increase the increment and biomass of Pinus massoniana. The bulk density was lower, water-holding ＂ability was stronger as well as aerating degree, and the concentration of nutrition was higher in the soil of mixed stand than those of pure stand. Mixed stand could obviously improve the soil fertility. Acacia dealbata is the ideal associated tree species for Pinus rrtassoniana to improve its productivity and prevent the decline of soil fertility.
出处
《防护林科技》
2006年第5期5-7,共3页
Protection Forest Science and Technology
关键词
马尾松
银荆
纯林
混交林
生产力
土壤理化性质
Pinus massoniana
Acacia dealbata Link
pure stand
mixed stand
productivity
soil physical and chemical property
