Variation of the Soil Carbon and Nitrogen for Initial Stage after the Felling in Tropical Montane Rainforest of Bawangling,Hainan Island / 海南岛霸王岭热带山地雨林采伐经营初期土壤碳氮储量

• Published in: Forest research (Beijing) Vol. 13; no. 2; p. 123
• Main Authors: 骆土寿, 陈步峰, 陈永富, 杨彦臣, 杨秀森, 李大江
• Format: Journal Article
• Language: Chinese
• Published: Beijing Chinese Academy of Forestry 01.01.2000
• Subjects: Carbon; Nitrogen; Rainforests; Hainan Island
• ISSN: 1001-1498

Based on the contrast experiment of the felling management,the content of nitrogen and organic carbon in soil were measured in a tropical montane rainforest of Bawangling,Hainan Island.The results showed that the organic carbon and nitrogen were 108.91 t·hm-2 and 9.58 t·hm-2 respectively in the soil layer of 100 cm of the virgin forest,and 77.6% of organic carbon and 73.8% of nitrogen were stored in surface soil of 50 cm.Five months later after felling tropical montane rainforest by the intensity of 30% and 50%,the soil carbon storage declined by 4.5% and 5.3% respectively compared with the previous virgin tropical forest.C/N ratio of the soil on the 30% harvest plot was close to that in the virgin forest. 测定了海南岛霸王岭热带山地雨林不同择伐强度经营试验初期土壤 C、N含量及其储量,结果表明:原始热带山地雨林土壤 C、N背景值分别为 108.91t· hm-2 、9.58t· hm-2,表层 50 cm土壤 C储量占深 100 cm土层 C储量的 77.6%,相应的 N储量占 73.8%;30%、50%择伐强度经营 5个月后林地土壤 C储量分别比原始林降低 4.5%和 5.3%,但 30%强度经营林地土壤 C/N接近未采伐的原始林。结果可作为对热带山地雨林选取持续经营模式的动态参考指标。