Influences of Deforestation on Carbon Balance in a Natural Tropical Peat Swamp Forest in Thailand
Influences of Deforestation on Carbon Balance in a Natural Tropical Peat Swamp Forest in Thailand
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森林砍伐对泰国天然热带泥炭沼泽森林碳平衡的影响
DOI：
10.2525/ecb1963.37.115
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
S. Waijaroen
中科院分区：
文献类型：
--
作者：
S. Suzuki;Tomoyasu Ishida;T. Nagano;S. Waijaroen
利用微气象监测技术，研究了森林砍伐对热带泥炭沼泽天然林碳平衡的影响。监测地点是泰国那拉提瓦省To-Daeng的原始森林和Bacho的次生林。采用浓度梯度法（CG）和松弛涡累积法（REA）估算冠层上方CO2通量。我们估计了这两个网站的年度碳吸收量，使用每个网站的CO2通量和太阳辐射之间的关系。原始森林的年净碳吸收量为5.32tC ha-1年-1。森林释放的有机质积累到贮水中，导致泥炭沼泽森林的净碳吸收。在次生林中，年净碳吸收量估计为5.22吨C公顷-1年-1，这是几乎相同的吸收范围的原始森林，因为植物生长在次生林。一个更大的净碳吸收量，9.69吨碳公顷-1年-1，预计，假设地面保持全年积水。另一方面，假设全年保持干燥，预计净碳排放量为-0.40吨C公顷-1年-1。
The effects of deforestation on carbon balance in a natural tropical peat swamp forest were evaluated by micrometeorological monitoring. The monitoring sites were the primary forest at To-Daeng and the secondary forest at Bacho in Narathiwat Province, Thailand. The concentration gradient method (CG) and the relaxed eddy accumulation method (REA) were used to estimate the CO2 flux above the canopies. We estimated the annual amount of carbon absorption for both sites, using the relationship between CO2 flux and solar radiation for each site. An annual net carbon absorption of 5.32t C ha-1 year-1, was estimated for the primary forest. The accumulation of the released organic matter from the forest into logged-water caused the net carbon absorption in the peat swamp forest. In the secondary forest, annual net carbon absorption was estimated at 5.22 t C ha-1 year-1, which is almost the same range of absorption as the primary forest, because of plant growth in the secondary forest. A greater quantity of net carbon absorption, 9.69t C ha-1 year-1, was expected, assuming that the ground surface remained water-logged throughout the year. On the other hand, assuming it remained dry throughout the year, a net carbon emission of -0.40 t C ha-1 year-1, was expected.