浑善达克沙地14种植物热值特征

生态学杂志

浑善达克沙地14种植物热值特征

高凯^1**,韩国栋^1,2,于永奇¹,张丽娟¹

(¹内蒙古民族大学农学院，内蒙古通辽 028043; ²内蒙古农业大学生态环境学院，呼和浩特 010018)

出版日期:2015-02-07 发布日期:2015-02-07

Characterization of caloric values in 14 plant species in Hunshandake Sandy Land.

GAO Kai^1**, HAN Guo-dong^1,2, YU Yong-qi¹, ZHANG Li-juan¹

(¹Inner Mongolia University for Nationalities, Tongliao 028043, Inner Mongolia, China; ²College of Ecology and Environmental Science, Inner Mongolia Agricultural University, Huhhot 010018, China)

Online:2015-02-07 Published:2015-02-07

摘要/Abstract

摘要：

通过对浑善达克沙地14种主要野生植物根、茎、叶、果实等器官进行取样，测定其热值、灰分、矿质元素，同时对各项指标的相关性进行分析，来探讨浑善达克沙地主要植物作为生物燃料供给料的潜力及植物热值对灰分和矿质元素含量的响应。结果表明：14种野生植物全株热值范围为16.18 MJ·kg^-1（猪毛菜）～20.23 MJ·kg^-1（小叶锦鸡儿），平均值为18.80 MJ·kg^-1，该值高于全球陆生植物平均热值；14种沙生植物的全株热值顺序为：小叶锦鸡儿＞沙蒿＞地烧瓜＞冷蒿＞木岩黄芪＞扁蓿豆＞糙隐子草＞沙鞭＞沙芦草＞叉分蓼＞冰草＞细叶鸢尾＞木地肤＞猪毛菜；14种植物灰分范围3.98%（沙鞭）～12.18%（猪毛菜），全株灰分含量顺序为猪毛菜＞木地肤＞地烧瓜＞细叶鸢尾＞叉分蓼＞小叶锦鸡儿＞沙蒿＞冰草＞扁蓿豆＞沙芦草＞冷蒿＞木岩黄芪＞糙隐子＞沙鞭；热值与灰分呈极显著负相关(P＜0.01)，与碳、氮含量呈极显著正相关(P＜0.01)，热值与金属矿质元素呈负相关，与非金属矿质元素呈正相关，但均不显著。浑善达克沙地主要野生植物热值均高于当前主要生物质原材料（柳枝稷、玉米秸秆、王草等），说明该地区植物具有作为能源植物的潜力。

关键词: 红壤旱地, 灰色关联分析, 复种方式

Abstract: Wild plants can be served as potential sources of bio-fuel production. We determined the caloric values, ash contents, concentrations of C, N and mineral elements of 14 plant species in Hunshadake Sandy Land of Inner Mongolia. We also examined the relationship between caloric value and ash content and the contents of other mineral elements. The results showed that the caloric value ranged from 16.18 to 20.23 MJ·kg^-1 across all species, with a mean value of 18.80 MJ·kg^-1, which is higher than that of worldwide terrestrial plants. The caloric values of the 14 species were in order of Caragana microphylla>Artemisia desertorum>Cynanchum thesioides>Artemisia sievrsiana>Hedysarum fruticosum>Trigonella ruthenica>Cleistogenes squarrosa>Psammochloa villosa>Agropyron mongolicum>Polygonum divaricatum>Agropyron cristatum>Iris tenuifolia>Kochia prostrate> Salsola collina. The ash contents of the 14 species ranged from 3.98% to 12.18%, with the order of S. collina>K. prostrate>C. thesioides>I. tenuifolia>P. divaricatum>C. microphylla>A. desertorum>A. cristatum>T. ruthenica>A. mongolicum>A. sievrsiana>H. fruticosum>C. squarrosa>P. villosa. Across the 14 species, the caloric value was negatively correlated with ash content (P<0.01) and positively correlated with both C and N concentrations (all P<0.01). Moreover, the caloric value was negatively correlated with the concentrations of metal elements, and positively correlated with the concentrations of nonmetal elements (P>0.05). Our results indicated that these wild plants could be served as an important source of bio-energy, as their caloric values were much higher than that of the commonly used biomass for bio-energy (such as switch grass, corn stalk and king grass) in this region.

Key words: red soil dryland, grey relational analysis, multiple cropping pattern

高凯1**,韩国栋1,2,于永奇1,张丽娟1. 浑善达克沙地14种植物热值特征[J]. 生态学杂志.

GAO Kai1**, HAN Guo-dong1,2, YU Yong-qi1, ZHANG Li-juan1. Characterization of caloric values in 14 plant species in Hunshandake Sandy Land.[J]. cje.

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