@article{oai:nagoya.repo.nii.ac.jp:00007032, author = {PAEMBONAN, Samuel Arung and パエンボナン, サムエル アルン and HAGIHARA, Akio and 萩原, 秋男}, journal = {名古屋大学農学部演習林報告}, month = {Dec}, note = {Carbon dioxide exchange rates were continuously measured on the aboveground parts of a hinoki (Chamaecyparis obtusa (Sieb. et Zucc.) Endl.) tree in the field over a 5-year period, though there was one growing season during which the data were not successfully collected. During the study period, the specific respiration rate decreased linearly with decreasing relative growth rate of the aboveground phytomass. Coefficients for the construction and maintenance respiration were about 1.4 and 0.19 yr^-1, respectively, i.e., the construction respiration was about 1.4 times as much as the annual phytomass increment and the maintenance respiration was annually 19% of the phytomass. The growth process of the phytomass was approximately expressed by a simple logistic equation. Combining the logistic equation with the growth-respiration relationship gave an equation which predicted a proportional relationship between the total respiration and phytomass in the younger stages, where a maximum total respiration was realized. It was estimated that the construction respiration accounted for at most 80% of the total respiration in the younger stages, whereas in the mature stages the maintenance respiration dominated the total respiration, with the construction and maintenance respiration being equal at a tree age., ヒノキの地上部の二酸化炭素ガス交換が、野外において5年間に渡って測定された(うち1年間はデータ欠測)。現存量当たりの呼吸速度である比呼吸速度は、現存量の相対成長速度の減少に伴って線形に減少した。構成呼吸係数と維持呼吸係数はそれぞれ1.4と0.19yr^-1であった。すなわち、年構成呼吸量は年成長量の役1.4倍に、また年維持呼吸量は現存量の約19%に相当していた。地上部の成長過程は、単純ロジスチック曲線で近似された。地上部のロジスチック成長と比呼吸速度-相対成長速度関係とから、若齢期におい手は呼吸速度と現存量との比例関係が成立すること、また最大呼吸速度を示す樹齢が存在することが予測された。若齢期には構成呼吸が呼吸の最大80%を占め、成長に伴い構成呼吸と維持呼吸が等しくなる樹齢を経過し、成熟期には維持呼吸が呼吸の大部分を占めることが予測された。, 農林水産研究情報センターで作成したPDFファイルを使用している。}, pages = {119--127}, title = {Construction and Maintenance Respiration Related to the Aboveground Growth of a Hinoki Tree}, volume = {13}, year = {1994} }