植物生态学报 ›› 2013, Vol. 37 ›› Issue (11): 1028-1034.DOI: 10.3724/SP.J.1258.2013.00106

• 研究论文 • 上一篇    下一篇

丛枝菌根真菌对刺槐热值、碳和灰分含量的影响

朱晓琴1,王春燕2,盛敏2,陈辉2,唐明2,*()   

  1. 1西北农林科技大学生命科学学院, 陕西杨凌 712100
    2西北农林科技大学林学院, 陕西杨凌 712100
  • 收稿日期:2013-06-26 接受日期:2013-09-12 出版日期:2013-06-26 发布日期:2013-11-06
  • 通讯作者: 唐明
  • 基金资助:
    国家自然科学基金(31270639);国家自然科学基金(31170607);国家自然科学基金(1170567);长江学者和大学创新团队(IRT1035);国家教育部博士课题基金(20100204110033);国家教育部博士课题基金(20110204130001)

Effects of arbuscular mycorrhizal fungi on calorific value and contents of carbon and ash in Robinia pseudoacacia

ZHU Xiao-Qin1,WANG Chun-Yan2,SHENG Min2,CHEN Hui2,TANG Ming2,*()   

  1. 1College of Life Sciences, Northwest A&F University, Yangling, Shaanxi 712100, China
    2College of Forestry, Northwest A&F University, Yangling, Shaanxi 712100, China
  • Received:2013-06-26 Accepted:2013-09-12 Online:2013-06-26 Published:2013-11-06
  • Contact: TANG Ming

摘要:

该试验以根内球囊霉(Glomus intraradices)和地表球囊霉(G. versiforme)为接种剂, 研究了丛枝菌根真菌对刺槐(Robinia pseudoacacia)生物量、热值、含碳量、灰分、能量积累和碳素积累的影响。结果表明, 接种根内球囊霉和地表球囊霉对提高刺槐生物量、热值、能量积累和碳素积累都起到了重要作用。接种根内球囊霉和地表球囊霉后刺槐的总生物量比对照分别增加了89.61%和91.34%, 能量积累分别比对照增加102.20%和94.19%, 碳素积累分别比对照增加93.30%和77.21%; 同时发现刺槐的能量和碳主要分布在根系和叶, 而茎中能量和碳所占的比例较小。接种根内球囊霉提高了刺槐的干重热值, 其根、茎、叶的干重热值分别比对照增加7.72%、8.94%和8.41%; 接种地表球囊霉也显著(p < 0.05)提高了刺槐的干重热值, 但其效果低于根内球囊霉。接种根内球囊霉显著(p < 0.05)提高了刺槐根的含碳量, 对茎和叶的含碳量影响不明显。接种根内球囊霉和地表球囊霉都显著(p < 0.05)提高了刺槐茎和叶的去灰分热值。

关键词: 丛枝菌根真菌, 灰分含量, 刺槐, 热值, 含碳量

Abstract:

Aims It is still unknown whether arbuscular mycorrhizal (AM) fungi could increase calorific value and carbon content in plants. Our objectives in this study were to (1) determine the effects of two AM fungi, Glomus intraradices and G. versiforme, on biomass, calorific value, carbon content, and ash content in black locust (Robinia pseudoacacia) seedlings; and (2) assess the effectiveness of G. intraradices and G. versiforme in affecting biomass and energy accumulation in black locust.
Methods Three treatments were performed: black locust seedlings, including inoculations of seedlings with G. intraradices, G. versiforme, respectively, and no inoculum as control. Seedlings were grown in a greenhouse for 14 months following treatments, and then their biomass, gross calorific value, carbon content, and ash content of the roots, stems, and leaves were measured. Ash-free calorific value, energy accumulation, and carbon accumulation were calculated.
Important findings We found that inoculations with the two AM fungi increased the biomass, calorific value, and carbon content in black locust seedlings. The accumulations of biomass, energy, and carbon were 89.61%, 102.20%, and 93.30% greater in black locust seedlings inoculated with G. intraradices, and 91.34%, 94.19% and 77.21% greater in those inoculated with G. versiforme, respectively, than the controls. Both calorific value and carbon content were the highest in seedlings inoculated with G. intraradices; and the gross calorific value of roots, stems and leaves were 7.72%, 8.94%, 8.41% higher, respectively, in seedlings inoculated with G. intraradices than the controls. Glomus intraradices was found to be more effective than G. versiforme in enhancing calorific value and accumulation of energy and carbon.

Key words: arbuscular mycorrhizal fungi, ash content, black locust, calorific value, carbon content