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Position: Home > Articles > Changes in Caloric Value and Ash Content of Needles of Three Species Urban Greenery Plants Northern Horticulture 2014 (21) 91-94

三种城市绿化树种针叶热值和灰分含量动态变化研究

作  者:
高凯;朱铁霞
单  位:
内蒙古民族大学农学院
关键词:
热值;灰分;去灰分热值;相关性;生物燃料
摘  要:
通过对3种常绿树种(雪松、樟子松和油松)针叶的热值和灰分进行测定,探讨了植物热值和灰分的月变化及二者之间相关性,以期进一步丰富园林植物热值研究内容,同时为园林植物能用过程中合理利用提供参考。结果表明:3种树木针叶干重热值、去灰分热值和灰分含量均为多峰值变化曲线,且变化趋势基本一致;雪松的干重热值和去灰分热值最大值均出现在4月份,樟子松的干重热值和去灰分热值最大值均出现在12月份,油松的干重热值和去灰分热值最大值分别出现在12月份和4月份;樟子松针叶干重热值与灰分含量之间表现为极显著线性负相关(P<0.01),油松针叶干重热值与灰分之间表现为显著线性负相关(P<0.05),雪松干重热值与灰分含量之间表现为负相关关系但相关性不显著。
译  名:
Changes in Caloric Value and Ash Content of Needles of Three Species Urban Greenery Plants
作  者:
GAO Kai;ZHU Tie-xia;Agricultural College,Inner Mongolia University for Nationalities;
关键词:
caloric value;;ash;;ash-free caloric value;;relationship;;biofuel
摘  要:
Taking Cedrus deodara,Pinus tabulaeformis Carr.and Pinus sylvestnis var.mongolica Litv.as materials,the temporal changes in caloric value and ash content as well as their correlationships of five dominant grass species over a growing season in three urban greenery plants were studied,in order to enrich the content of caloric value study of urban greenery plants and to provide information of reasonable utilization.The results showed that the changes in dry weight of caloric value,ash-free caloric values and ash content followed a multi-peak pattern and variation trends were similar;the peaking time of dry weight of caloric value and ash-free caloric value of Cedrus deodara appeared in April,Pinus tabulaeformis Carr.was in December,Pinus sylvestnis var.mongolica Litv.were in December and April;the correlationship of Pinus sylvestnis var.mongolica Litv.analysis suggested that dry weight of caloric value showed significantly negative correlation with ash content of the species investigated(P<0.01),and showed negative correlation of Pinus tabulaeformis Carr.(P<0.05),except Cedrus deodara(P<0.122).

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