欢迎访问林业资源管理

林业资源管理 ›› 2023, Vol. 0 ›› Issue (1): 42-50.doi: 10.13466/j.cnki.lyzygl.2023.01.006

• 科学研究 • 上一篇    下一篇

东天山北坡荒漠区15种植物热值特征研究

肖云武1,2(), 杨建军1,2(), 宋娜娜1,2   

  1. 1.新疆大学 生态与环境学院,乌鲁木齐 830046
    2.新疆大学 绿洲生态教育部重点实验室,乌鲁木齐 830046
  • 收稿日期:2022-12-27 修回日期:2023-02-10 出版日期:2023-02-28 发布日期:2023-05-05
  • 通讯作者: 杨建军(1978-),男,新疆乌苏人,教授,博士,主要研究方向为干旱区水土保持与荒漠化防治。Email:yjj@xju.edu.cn
  • 作者简介:肖云武(1998-),男,四川资中人,硕士研究生,主要研究方向为生态工程。Email:xyw@stu.xju.edu.cn
  • 基金资助:
    上海合作组织科技伙伴计划及国际科技合作计划(2022E01052)

Characterization of Caloric Values in 15 Plant Species in the Desert Zone on the North Slope of Eastern Tianshan Mountain

XIAO Yunwu1,2(), YANG Jianjun1,2(), SONG Nana1,2   

  1. 1. College of Ecology and Environment,Xinjiang University,Urumqi 830046,China
    2. Key Laboratory of Oasis Ecology Ministry of Education,Xinjiang University,Urumqi 830046,China
  • Received:2022-12-27 Revised:2023-02-10 Online:2023-02-28 Published:2023-05-05

摘要:

灌木和半灌木是维持干旱和半干旱地区生态系统稳定性的重要植被类型。采集东天山北坡荒漠区的15种优势灌木和半灌木植物茎、枝、叶等器官样品,测定其热值、灰分、碳含量,研究灌木种类、器官、灰分含量和碳含量对灌木热值的影响及其相关性,以期为深入了解干旱地区典型沙漠环境下的物质和能量循环研究提供理论依据。结果表明:1)15种植物全株(地上)热值范围为14.21KJ/g(短叶假木贼)~19.87KJ/g(小檗),平均热值为18.38KJ/g,该值高于全球陆生植物平均热值;2)灌木物种科间热值和碳含量存在差异,豆科和菊科植物相对于蔾属和蓼科植物有更高的热值和碳含量;3)灌木植物茎、枝、叶的热值,灰分含量和碳含量也存在差异,植物各器官热值平均值大小顺序为茎>枝>叶,灰分含量平均值大小顺序为叶>枝>茎,碳含量平均值大小顺序为枝>茎>叶;4)热值与灰分之间呈现极显著负相关(P<0.01),与碳含量呈现极显著正相关(P<0.01)。

关键词: 热值, 灰分含量, 碳含量, 东天山北坡

Abstract:

Shrub and semi-shrub plants are important vegetation type for maintaining ecosystem stability in arid and semiarid zones.In this study,we collected organ samples of stems,branches,and leaves of 15 species of shrubs and semi-shrubs from the desert zone on the north slope of eastern Tianshan Mountain and determined their calorific values,ash contents and carbon contents to explore the effects of shrub species,organs,AC,and CC on the CV of shrubs and their correlations.The related research can provide a theoretical basis for gaining a through understanding of the study of material and energy cycles in typical desert environments in the arid region.The results showed:1)The whole plant CV (above-ground) of the 15 plants ranged from 14.21 KJ/g (Anabasis brevifolia) to 19.87 KJ/g (Berberidaceae),with an average of 18.38 KJ/g,which was higher than of the global average calorific value of terrestrial plants;2) Differences in calorific values and carbon contents existed between families of shrub species.We found that Leguminosae and Compositae had higher calorific values and carbon contents compared to Chenopodiaceae and Polygonaceae species;3)The calorific values,ash contents,carbon contents of the stem,branches,and leaves of the 15 plants differed.The order of the average calorific value of each organ was stem>branch>leaf,the order of the average ash content was leaf>branch>stem,and the order of the average carbon content was branch>stem>leaf;4)Calorific value was negatively correlated with ash content (P<0.01) and was positively correlated with carbon content (P<0.01).

Key words: calorific value, ash content, carbon content, north slope of eastern Tianshan Mountain

中图分类号: