Drought resistance mechanism of tree species growing in Loess Plateau of China estimated by δ13C analysis

δ13​​C分析估算我国黄土高原树种的抗旱机制

• 批准号: 14560113
• 负责人: FUKUDA Kenji
• 金额: $ 2.37万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14560113/
• 关键词: carbon isotope ratio; annual ring; Robinia pseudoacacia; Pinus tabulaeformis; water-use efficiency; drought resistance; δ13C; 降水量; 年輪; 光合成

Drought resistance mechanism of tree species growing in Loess Plateau in China was investigated. Annual rings of Pinus tabulaeformis and Robinia pseudoacacia, which are the most popular species for forest plantation in that region, were splitted to early- and latewood of each year. Holocellulose of the wood samples were analysed for isotope ratio of ^<13>C. From the measurements, δ^<13>C of early- and latewood were shown to have correlation to air temperature and precipitation in certain periods. In Pinus tabulaeformis, δ^<13>C of the earlywood was not significantly correlated to climate data, and that of latewood was correlated to mean temperature of January to September and cummulative rainfall in May to September. In Robinia pseudoacacia, δ^<13>C of the earlywood was correlated to mean temperature of previous January to currernt September, and that of latewood was correlated to mean temperature of previous October to current September and rainfall of previous October to current September. Annual growth rate was higher in Robinia pseudoacacia than Pinus tabulaeformis, but water-use efficiency estimated from δ^<13>C was lower in Robinia than Pinus. From these reslts, Robinia pseudoacacia were supposed to need more water for transpiration than Pinus for its faster growth, thus this species is not recommended to be planted in dry area.

研究了黄土高原主要树种的抗旱机理。将该地区最受欢迎的人工林树种油松和刺槐的年轮分为每年的早材和晚材。对木材样品的综纤维素进行了^ C同位素比分析<13>。早<13>、晚材的δ^ C与气温、降水量有一定的相关性。油松早材δ^<13>C与气候资料相关性不显著，晚材δ^ C与1 ~ 9月平均气温和5 ~ 9月累积降雨量相关。刺槐早材δ^<13>C与前10月至前9月的平均气温和前10月至前9月的降水量相关，晚材δ^ C与前10月至前9月的平均气温和前10月至前9月的降水量相关。刺槐的年生长率高于油松，但由δ^ C估算的水分利用效率<13>刺槐低于油松。由此推测，刺槐因生长快，需水量大，不宜在干旱地区种植。

项目成果

Drought-Resistance Characteristics of Trees in the Loess Plateau of China Estimated by δ13C of Annual Rings.

用年轮δ13C估算我国黄土高原树木的抗旱特性。

• 发表时间: 2005
• 期刊: XXII IUFRO World Congress, Brisbane Australia
• 作者: Koretsune;S.;Fukuda;K.;et al.
• 通讯作者: et al.

Drought resistance mechanism of tree species growing in Loess Plateau of China estimated by δ13C analysis.

δ13​​C分析估算我国黄土高原树种的抗旱机制

• 发表时间: 2004
• 期刊: Trans.Jpn.For.Soc. 115
• 作者: Ito;S.;Fukuda;K.et al.
• 通讯作者: K.et al.

Water stress and tree ring δ^<13>C

水分胁迫与树木年轮δ^<13>C

• 发表时间: 2002
• 期刊: Transactions of the Annual Meeting of Tree Pathology 12
• 作者: Fukuda;Kenji
• 通讯作者: Kenji

渡辺達三編(著者多数): "緑の環境設計"NGTコーポレーション. 748 (2002)

渡边达三编（多作者）：《绿色环境设计》NGT Corporation 748（2002）。

Drought resistance mechanism of Pinus tabulaeformis and Robinia pseudoacacia growing in Loess Plateau, China.

黄土高原油松和刺槐的抗旱机制.

• 发表时间: 2005
• 期刊: Transactions of the 116th Annual Meeting of Japanese Forest Society
• 作者: Koretsune;S.;Fukuda;K.et al.
• 通讯作者: K.et al.