期刊论文

中文

土壤学报

0564-3929

2011

48

3

603-611

40871130:国家自然科学基金 30600474:国家自然科学基金

本校为其他机构

凋落物分解是陆地生态系统养分循环的关键过程,明确凋落物多样性如何影响土壤微生物群落构成和多度,继而潜在地改变凋落物分解的微生物学机制有助于认识生物多样性和森林生态系统功能的关系。通过小盆模拟试验,应用磷脂脂肪酸谱图的方法研究了我国南方红壤丘陵区典型物种马尾松和湿地松的凋落物分别与白栎和青冈的凋落物混合,与单一针叶凋落物分解时相比,针阔混合凋落物分解过程中土壤微生物群落结构的变化,结果显示:(1)针阔混合凋落物分解时土壤微生物群落磷脂脂肪酸(Phospholipidfatty acids,PLFA)总量低于单一针叶处理,细菌和放线菌的相对多度高于单一针叶处理,真菌则相反,群落真菌/细菌低于...

Litter decomposition is the key process in nutrient recycling in the terrestrial ecosystem.A clear knowledge about how litter diversity affects composition and abundance of the soil microbial community and then potentially changes the microbiological mechanism of litter decomposition will help understand the relationship between biological diversity and functions of a forest ecosystem.A pot experiment was carried out to compare mixed litters from massion pine,slash pine,white oak and blue Japanese oak,which are all typical species of the hilly ...