Modeling of Watershed Scale Mass Circulation Structure on Nitrogen and Carbon

流域尺度氮碳物质循环结构模拟

• 批准号: 17380138
• 负责人: GOTO Akira
• 金额: $ 4.81万
• 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: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17380138/
• 关键词: mass circulation; water quality hydrology; watershed hydro-environment; nitrogen balance; carbon Balance

This study was aimed to establish an integrated nitrogen-carbon mass circulation model for watershed scale. Since solute movement in a watershed is governed largely by hydrological runoff processes, the mass circulation model was developed based on a watershed water quality model combining hydrological runoff and water quality processes. The DNDC model was employed for modeling the dynamic processes of biological metabolism. The study was conducted for the Cidanau watershed in the western part of Java Island, Indonesia. The main results of the study are summarized as follows: (1) Development of watershed runoff model and watershed water quality model Sugawara's Tank Model was applied on sub-catchment basis for the hydrological runoff processes. A watershed water quality model was developed by adding water quality processes to the Tank Model. The model's outputs on effluent load discharges at each sub-catchment's outlet were utilized for the following analysis. (2) Analysis on nitrogen … More balance in the watershed. The watershed was divided into 6 blocks based on tributaries alignment and topography. Considering several categories of land use such as paddy fields, upland fields, garden forest, residential area and so on, nitrogen flow in each land use type was analyzed. The nitrogen balance model for the whole watershed was established by combination of these land use wise nitrogen flow models. (3) Modeling of nitrogen-carbon mass circulation structure in the watershed. The DNDC (DeNitrification and DeComposition) model was employed for metabolic behaviors of nitrogen and carbon. The DNDC was applied in the same manner as the above nitrogen balance model Namely, the watershed scale mass circulation model on Nitrogen and carbon was developed by replacing the above nitrogen flow model for each land use type by the DNDC model. The model could perform properly and its outputs on mass balance factors were considered reasonable. Thus, the result of models development was satisfactory. Utilization of these models is expected to contribute for materializing batter watershed management. Less

本研究旨在建立流域尺度氮碳质量循环一体化模型。由于流域内溶质运移主要受水文径流过程的控制，因此在结合水文径流和水质过程的流域水质模型的基础上建立了质量循环模型。DNDC模型用于模拟生物代谢的动态过程。该研究是在印度尼西亚爪哇岛西部的Cidanau流域进行的。主要研究成果如下：（1）流域径流模型和流域水质模型的建立以子流域为单位，采用Sugawara的Tank模型模拟流域径流过程。在水池模型的基础上，加入水质过程，建立了流域水质模型。该模型的输出在每个子集水区的出口的污水负荷排放量用于以下分析。(2)氮素分析 ...更多信息 分水岭的平衡。根据支流走向和地形，将流域划分为6个区块。考虑水田、高地、园林林、居民点等几种土地利用类型，分析了各土地利用类型氮素流动情况。结合这些土地利用方式氮素流动模型，建立了整个流域的氮素平衡模型。(3)流域氮碳物质循环结构模拟。氮、碳代谢行为采用DNDC（DeNitrification and DeComposition）模型。DNDC的应用方式与上述氮平衡模型相同，即通过用DNDC模型代替上述每种土地利用类型的氮流量模型，开发了流域尺度氮和碳质量循环模型。该模型可以正常运行，其质量平衡因子的输出被认为是合理的。因此，模型开发的结果令人满意。这些模型的使用，预计有助于实现更好的流域管理。少

项目成果

Development of watershed water quality model in Banten Province, Indonesia

印度尼西亚万丹省流域水质模型的开发

• 发表时间: 2006
• 作者: Arien Heryansyah;Akira Goto;Yanuar J.M. Purwanto
• 通讯作者: Yanuar J.M. Purwanto

Development of a watershed water quality model in Indonesia

印度尼西亚流域水质模型的开发

• 发表时间: 2007
• 期刊: 農業農村工学会論文集 75(5),No.251
• 作者: Arien Heryansyah;Akira Goto;M. Mizutani;Yanuar J.M. Purwanto
• 通讯作者: Yanuar J.M. Purwanto

Appropriate watershed runoff modeling in a developing watershed in Indonesia

印度尼西亚发展中流域的适当流域径流建模

• 发表时间: 2005
• 期刊: 農業土木学会論文集 73(6),No.240
• 作者: Arien Heryansyah;Akira Goto;M. Mizutani;Yanuar J.M. Purwanto
• 通讯作者: Yanuar J.M. Purwanto

農村流域における窒素・炭素の連動的物質循環に関するモデル解析

农村流域氮碳物质循环关联模型分析

• 发表时间: 2007
• 作者: 金沢亮;後藤章;水谷正一
• 通讯作者: 水谷正一

Integration of water quality components to a watershed runoff model

将水质成分集成到流域径流模型中

• 发表时间: 2005
• 作者: Arien Heryansyah;Akira Goto;Yanuar J.M. Purwanto
• 通讯作者: Yanuar J.M. Purwanto