|Table of Contents|

Changes in Caloric Value and Ash Content of Needles of Three Species Urban Greenery Plants(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2014年21期
Page:
83-86
Research Field:
Publishing date:

Info

Title:
Changes in Caloric Value and Ash Content of Needles of Three Species Urban Greenery Plants
Author(s):
GAO Kai; ZHU Tie-xia
Agricultural College,Inner Mongolia University for Nationalities,Tongliao,Inner Mongolia 028043
Keywords:
caloric value; ash; ash-free caloric value; relationship; biofuel
PACS:
S 687.1
DOI:
-
Abstract:
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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Last Update: 2014-11-28