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当前位置: 首页 > 文章 > 青海省主要造林树种的热值和灰分含量特征 中南林业调查规划 2015 (1) 42-47
Position: Home > Articles > Characteristics of Caloric Values and Ash Contents of Main Afforestation Tree Species in Qinghai Province Central South Forest Inventory and Planning 2015 (1) 42-47

青海省主要造林树种的热值和灰分含量特征

作  者：
罗艳;唐才富;董旭;辛文荣;赵丰钰
单  位：
青海省林业勘察设计院;山水自然保护中心
关键词：
热值;灰分含量;圆柏属;云杉属;青海省
摘  要：
为了解青藏高原森林的热值特征,对青海省主要造林树种的热值和灰分含量进行了分析。结果显示:1青海省云杉属和圆柏属5个乔木树种全株的干质量热值和去灰分热值分别在22.34 MJ/kg~22.92 MJ/kg之间和23.19 MJ/kg~23.48 MJ/kg之间,灰分含量在2.23%~3.54%之间,云杉属的干质量热值显著高于圆柏属,灰分含量显著低于圆柏属。2青海省主要乔木树种各器官的干质量热值和去灰分热值分别在21.20 MJ/kg~26.60 MJ/kg和22.20 MJ/kg~28.28 MJ/kg之间,灰分含量在0.43%~8.33%之间。就干质量热值而言,每种植物叶片的热值均显著高于其它器官;就去灰分热值而言,除紫果云杉外,每种植物叶片的热值均显著高于其它器官。就灰分含量而言,不同树种灰分含量最小的器官均为干。3树种热值和灰分含量均会受到年龄和海拔影响,但这种影响总体不具显著性。
译  名：
Characteristics of Caloric Values and Ash Contents of Main Afforestation Tree Species in Qinghai Province
作  者：
LUO Yan;TANG Caifu;DONG Xu;XIN Wenrong;ZHAO Fengyu;Shanshui Conservation Center;Qinghai Forestry Survey and Design Institute;
关键词：
caloric value;;ash content;;Picea;;Sabina;;Qinghai province
摘  要：
In order to understand the calorific values features of Tibet Plateau forest,this study analyzed the caloric values and ash content values of main afforestation tree species in Qinghai province. The results showed as below. 1 Range of Gross caloric values,ash-free caloric values and ash content values in whole plants of 5 tree species in Picea and Sabina were between 22. 34 MJ / kg ~ 22. 92 MJ / kg,and 23. 19 MJ / kg ~ 23. 48 MJ / kg,and ash content values were between 2. 23% and 3. 54%. Calorific values of Picea were significantly higher than that of Sabina,while ash content values of Picea were significantly lower than that of Sabina. 2Range of Gross caloric values,ash-free caloric values in organs of all 5 species in Picea and Sabina were betwwen221. 20 MJ / kg ~ 26. 60 MJ / kg,and 22. 20 MJ / kg ~ 28. 28 MJ / kg,and ash content values were 0. 43% ~8. 33%. The gross caloric values of leaves were significantly higher than that of other organs in all analyzed species. The ash-free caloric values of leaves were also significantly higher than that of other organs in all analyzed species except Picea purpurea. The ash content values of stem were less than that of other organs. 3 Caloric values and ash content values of tree species in this study were affected by age and altitude,but this effect was not significant in general.

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