| 摘要: |
| 为准确估算广东地区林下植被碳储量和能量，应用湿烧法和氧弹式热量仪法对该地区共计 11
类林下植物的碳含量和热值进行了测定和分析，结果表明，碳含量大小顺序为杉木 (Cunninghamia lanceolata)（下木， 505.47 g/kg）＞其它灌木（496.36 g/kg）＞阔叶类（下木， 491.24 g/kg）＞岗松 (Baeckea
frutescens)（491.06 g/kg）＞桃金娘 (Rhodomyrtus tomentosa)（476.62 g/kg）＞竹灌（474.19 g/kg）＞大
芒（Miscanthus floridulus）（473.60 g/kg）＞芒萁 (Dicranopteris dichotoma)（469.09 g/kg）＞小芒（M.sp.）
（452.73 g/kg）＞其它草类（411.28 g/kg）＞蕨类（387.30 g/kg），总体上遵循下木＞灌木＞草本的规律；
热值大小顺序为下木杉木（19.83 MJ/kg） = 下木阔叶类（19.83 MJ/kg）＞其它灌木（19.50 MJ/kg）＞岗
松（19.47 MJ/kg）＞桃金娘（19.13 MJ/kg）＞芒萁（18.54 MJ/kg）＞竹灌（18.11 MJ/kg）＞大芒（17.86
MJ/kg）＞小芒（17.77 MJ/kg）＞蕨类（16.65 MJ/kg）＞其它草类（16.35 MJ/kg），同样遵循下木＞灌
木＞草本的规律；植物碳含量与热值之间符合曲线相关，其实验数值大致遵循模型 y=0.000 3x2-0.192 1
x 53.383 6，其中 x 为碳含量（g/kg）， y 为热值（MJ/kg）， R2=0.907 7，该模型可用于筛选具有应用潜力
的能源植物。 |
| 关键词: 广东 林下植物 碳含量 热值 |
| DOI： |
| 分类号:S718 |
| 基金项目:其它 |
|
| Characteristic Analysis of Carbon Content and Calorific Value of Undergrowth Plant in Guangdong Province |
|
ZHANG Hong-ai and CAI An-bin
|
|
Forestry Surveying and Designing Institute of Guangdong Province,Lingnan Integrated Exploration and Design institute of GuangDong
|
| Abstract: |
| In order to accurately estimate the carbon storage and energy of undergrowth plant in Guangdong province, the carbon content and caloric value of 11 species of underground plants in the area were measured and analyzed by wet burning method and oxygen bomb calorimeter method. The results showed that, (1)
The carbon content rates in descending order are: Cunninghamia lanceolata (underwood, 505.47 g/kg) > other
shrubs(496.36 g/kg)>broadleaf (underwood, 491.24 g/kg) > Baeckea frutescens(491.06 g/kg) > Rhodomyrtus tomentosa(476.62 g/kg) >underwood bamboo(474.19 g/kg) > Miscanthus floridulus(473.60 g/kg) > Dicranopteris
dichotoma (469.09 g/kg) > M.sp. (452.73 g/kg) > other grasses(411.28 g/kg) > fern(387.30 g/kg). In general, the
carbon content rates decreased from underplant, shrub, to grass. (2) The calorific value in descending order are:underwood chinese fir (19.83 MJ/kg) = underwood broadleaf (19.83 MJ/kg) > other shrubs (19.50 MJ/kg) > B.
frutescens(19.47 MJ/kg) > R. tomentosa (19.13 MJ/kg) > D. dichotoma(18.54 MJ/kg)> underwood bamboo (18.11
MJ/kg) > M. floridulus (17.86 MJ/kg) > M.sp. (17.77 MJ/kg) > fern (16.65 MJ/kg) > other grasses (16.35 MJ/
kg). Similarly, the calorific value decreased from underwood, shrub, to grass. (3) Curve correlation was perceived
between the carbon content rate and the calorific value, and observation values followed generally the model
y=0.000 3x2-0.192 1x 53.383 6, where x (g/kg) denotes the carbon content rate, y (MJ/kg) denotes the calorific
value, and R2=0.907 7.This model could be further applied to provide a theoretical reference on screening of potential energy plants. |
| Key words: Guangdong typical plant species under forestry carbon content rate calorific value |
