The effect of land remediation on Carbon balance in tropical peat area

土地整治对热带泥炭区碳平衡的影响

• 批准号: 19405003
• 负责人: ISHIDA Tomoyasu
• 金额: $ 10.82万
• 依托单位: Utsunomiya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19405003/
• 关键词: 熱帯泥炭; 泥炭分解; 炭素収支; 泥炭湿地; 分解; 二酸化炭素放出; 開発; 熱帯泥炭土壌; 荒廃地の修復; 樹木呼吸; 土壌呼吸

The following results were concluded after the research in a tropical peat area in southern Thailand.(1)Diurnal change of soil temperature effects less than 6% of daily averaged peat decomposition rate. This fact imply that carbon emission rate in a year can be e stimate from daily average temperatures.(2)Peat decomposition rate increases as water table becomes deeper in shallow table condition. The rate, however, is almost constant below 50cm deep in water table.(3)Potential decomposition rate of peat soil at different places in the Southeast Asia show similar thermal characteristics and the maximum difference of the rate is a bout 40%.

经过对泰国南部热带泥炭地区的研究，得出以下结论：(1)土壤温度日变化对泥炭日平均分解率的影响小于6%。这一事实意味着一年中的碳排放率可以根据日平均气温来估算。(2)在浅表条件下，泥炭分解率随着地下水位变深而增加。然而，在地下水位50cm以下，该速率几乎恒定。(3)东南亚不同地区泥炭土的潜在分解速率表现出相似的热特性，最大差异约为40%。

项目成果

Automated 3D forest surface model extraction from balloon stereo photographs

从气球立体照片中自动提取 3D 森林表面模型

• 发表时间: 2009
• 期刊: Photogrammetric Engineering & Remote Sensing vol. 75
• 作者: Kushida;K.;Yoshino;K.;Nagano;T.;Ishida T.
• 通讯作者: Ishida T.