Development of evaluation protocols on ecological functions of forested catchments for water quality conservation

森林流域水质保护生态功能评价方案的制定

• 批准号: 18380093
• 负责人: OHTE Nobuhito
• 金额: $ 11.6万
• 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 (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18380093/
• 关键词: 森林集水域; 生態系機能; 水質浄化機能; 安定同位体; 微生物生態学; 森林流域; 物質循環

Achievements of this study are summarized as follows:(1) By using newly applied novel method for simultaneous measurements of N and O stable isotope ratios of NO_3^- (microbial denitrifier method), contribution and its mechanisms of atmospherically derived NO_3^- in soil nitrogen dynamics were described.(2) Stable carbon isotope ratio of dissolved organic (DOC) of soil and groundwaters were extensively surveyed, and was able to clarify the mechanisms generating the dissolved organic matter in soil profiles.(3) A long-term simulation model for nitrogen and carbon discharge from forested watersheds were developed with combining a catchment-scale biogeochemical and hydrological models. Using this model, the ecosystem functions for water quality conservation can be evaluated based on the process model for nutrient cycle in the forest ecosystem.

这项研究的成就总结如下：（1）通过使用新应用的新方法，用于同时测量NO_3^ - （Microbial denitrifier方法）的N和O稳定同位素比，贡献及其在大气中的NO_3^ - 在土壤Nitrogen Dynamics中的NO_3^ - 稳定的carbone and Orive and Oriver and Orive and Oribal and Oribal and Oribal and Oribal and Oribal Isot carbon isot（2）。对地下水进行了广泛的调查，并能够阐明在土壤剖面中产生溶解有机物的机制。（3）与森林流域的氮和碳排放的长期仿真模型结合在一起，结合了流域规模的生物地球化学和水文模型。使用此模型，可以根据森林生态系统中营养周期的过程模型来评估水质保护的生态系统功能。

项目成果

Carbon isotope fractionation of dissolved inorganic carbon (DIC) due to outgassing of carbon dioxide from a headwater stream

• DOI: 10.1002/hyp.6833
• 发表时间: 2008-07-01
• 期刊: HYDROLOGICAL PROCESSES
• 影响因子: 3.2
• 作者: Doctor, Daniel H.;Kendall, Carol;Boyer, Elizabeth W.
• 通讯作者: Boyer, Elizabeth W.

Hydrologic effects on methane dynamics in riparian wetlands in a temperate forest catchment

• DOI: 10.1029/2006jg000240
• 发表时间: 2007-02-27
• 期刊: JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
• 影响因子: 3.7
• 作者: Itoh, Masayuki;Ohte, Nobuhito;Tani, Makoto
• 通讯作者: Tani, Makoto

Evapotranspiration patterns for tropical rainforests in southeast Asia : A model performance examination of the Biome-BGC Model

东南亚热带雨林的蒸散模式：Biome-BGC 模型的模型性能检验

• 发表时间: 2009
• 期刊: Bulletin of Tokyo University Forests 120
• 作者: Chua;F. L. A.;M. Suzuki;N. Ohte;N. Hotta;T. Kume
• 通讯作者: T. Kume

The effect of antecedent moisture condition on storm flow water sources in young forest headwater catchment

前期湿度条件对幼林源头流域暴雨水源的影响

• 发表时间: 2008
• 期刊: in From Headwaters to the Ocean : Hydrological Changes and Watershed Management, edited by M. Taniguchi, et al., Taylor & Francis Group, London
• 作者: Oda;T.;Y. Asano;N. Ohte;M. Suzuki
• 通讯作者: M. Suzuki

Estimation of mean residence times of subsurface waters using seasonal variation in deuterium

利用氘的季节变化估计地下水的平均停留时间

• 发表时间: 2007
• 期刊: Hydrological Processes 21
• 作者: Kabeya N.;et. al.
• 通讯作者: et. al.