摘要
选取鼎湖山保护区3个马尾松(Pinusmassoniana)、荷木(Schimasuperba)针阔混交林样地,研究其生态系统的碳素积累和分配特征。结果表明,鼎湖山马尾松、荷木混交林乔木层生物量(thm-2)为:174.41-270.11,平均227.36,且均以马尾松的生物量居多(占54.9%-84.4%)。林下层植物生物量和地表现存凋落物量(thm-2)分别为7.41-28.28和7.06-11.56,平均14.41和9.03。三个混交林生态系统总碳贮量(thm-2)分别为146.35、215.30和205.79,平均为189.15,其中植被层碳贮量贡献率最大,依次占62.9%、61.9%和69.9%,平均65.0%;土壤层贡献率次之,依次占34.3%、35.5%和28.5%,平均32.8%;而地表现存凋落物层的贡献最小,仅占2.8%、2.6%和1.6%,平均为2.3%。此外,本文还对该生态系统植被碳吸存潜力进行了讨论。
Carbon accumulation and distribution were studied in vegetation and so il for Pinus massoniana and Schima superba mixed for est ecosystem in Dinghushan Biosphere Reserve. The biomass of trees in thre e plo ts ranged from 174.41 t hm-2 to 270.11 t hm-2, with an average of 227.36 t hm-2, which was contributed mainly by Pinus massoniana (54.9% -84.4%) . The biomass of understory plants was 7.41-28.28 t hm-2, with an aver ages of 14.41 t hm-2. Standing stock of ground litter was 7.06-11.56 t hm-2, with an av erage of 9.03 t hm-2. Total carbon storage of the forest ecosystems ranged from 146.35 t hm-2 to 215.30 t hm-2. Of total carbon, 61.9%-69.9% was distributed by vegetation component, 28.5%-35.5% by soil, only 1.6%-2.8% by standing grou nd litter layer. Potential carbon sequestration in forest vegetation is discuss ed.
出处
《热带亚热带植物学报》
CAS
CSCD
北大核心
2003年第1期47-52,共6页
Journal of Tropical and Subtropical Botany
基金
国家自然科学基金项目(30270283)
广东省自然科学基金项目(021524)
中国科学院华南植物研究所所长基金
中国科学院知识创新工程领域前沿项目资助。
关键词
碳积累
碳素分配
马尾松
荷木
混交林
鼎湖山
Carbon distribution
Carbon storage
Pinus massoniana and Schima superba mixed forest
Dinghushan
