毛乌素沙地羊柴人工林生物量特征及固碳能力研究
Study on Biomass Characteristics and Carbon Sequestration Capacity of Corethrodendron fruticosum Plantation in Mu Us Sandy Land
王乐军 1曹恭祥 2李银祥 2胡志健 1张丽 3塔娜 3杨积春4
作者信息
- 1. 内蒙古自治区林业科学研究院,内蒙古 呼和浩特 010010
- 2. 内蒙古自治区林业科学研究院,内蒙古 呼和浩特 010010;内蒙古鄂尔多斯森林生态系统国家定位观测研究站,内蒙古 鄂尔多斯 016100
- 3. 乌审旗林业和草原局,内蒙古 鄂尔多斯 017300
- 4. 扎兰屯职业学院,内蒙古 呼伦贝尔 162650
- 折叠
摘要
为了巩固和提升沙地生态系统的碳汇能力,本研究选择毛乌素沙地羊柴(Corethroden-dron fruticosum)人工林为研究对象,分析了不同林龄羊柴人工林的植被层、枯落物层、土壤层的生物量及碳密度特征.结果显示:羊柴地上生物量从8 a生到17 a生增加了1.76倍,而草本层生物量、枯落物层生物量差异不显著.羊柴的平均碳含量为48.11%,草本层的平均碳含量为42.83%,枯落物层的碳含量为42.29%.随着林龄增加,羊柴人工林碳密度显著增加(P<0.05),灌木层碳密度增长了175%,草本层增长了6.89%,枯落物层增长了15.12%,土壤有机碳含量增长了16.69%.研究表明,不同林龄的林分生物量存在较大差异,开展不同环境条件、林分结构下植被的生物量及碳密度研究,可为准确估算林分固碳能力提供科学依据.
Abstract
In order to consolidate and enhance the carbon sequestration capacity of sandy land ecosystem,Corethro-dendron fruticosum plantation in Mu Us Sandy Land was chosen as the research object,and the biomass and carbon density characteristics of vegetable layer,litter layer and soil layer of Corethrodendron fruticosum plantation with different forest ages were analyzed.The results showed that the aboveground biomass of Corethrodendron frutico-sum increased by1.76 times from 8 years old to 17 years old,while there was no significant difference between the biomass of herb layer and litter layer.The average carbon content of Corethrodendron fruticosum was 48.11%,the average carbon content of herb layer was 42.83%,and the carbon content of litter was 42.29%.With the increase of forest age,the carbon density of Corethrodendron fruticosum plantation increased significantly(P<0.05),the car-bon density of shrub layer increased by 175.00%,the one of herb layer increased by 6.89%,the one of litter layer in-creased by 15.12%,and the soil organic carbon increased by 16.69%.The research indicated that there were signifi-cant differences among the stand biomass with different ages.The study on the biomass and carbon density character-istics of vegetation under different environmental conditions and stand structures can provide a scientific basis for ac-curately estimating the carbon sequestration capacity of stands.
关键词
毛乌素沙地/羊柴/生物量特征/碳密度Key words
Mu Us Sandy Land/Corethrodendron fruticosum/biomass characteristics/carbon density引用本文复制引用
出版年
2024
NETL
NSTL
万方数据