双月刊

ISSN 1006-9895

CN 11-1768/O4

陆地高分辨率水文-生物地球化学过程三维模型CNMM-DNDC的研发及应用进展
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中国科学院大气物理研究所

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中国科学院战略性先导科技专项(XDA23070100);中国科学院基础前沿科学研究计划从0到1原始创新项目(ZDBS-LY-DQC007);国家重大科技基础设施项目“地球系统数值模拟装置


Review on Development and Application of CNMM-DNDC -- A Three-Dimension, High-Resolution and Process-Oriented Terrestrial Hydro-Biogeochemical Model
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Institute of Atmospheric Physics, Chinese Academy of Science

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    摘要:

    CNMM-DNDC是本文作者团队研发的陆地高分辨率水文-生物地球化学过程三维模型。本文系统介绍了建模背景和理念、核心过程和模型特点、模拟功能和观测验证、多尺度区域或流域初步应用以及未来发展展望。自2018年刊发其首个版本以来,该模型经过了多方面科学过程改进和模拟功能扩展,在元素化学反应、物质相变和机械迁移等基本理化生过程层面,完成了对陆地表层系统碳氮磷水循环全耦合的精细刻画。迄今开展的观测验证表明,CNMM-DNDC基本普适于不同生物气候带(从热带到寒区多年冻土地带)的流域或区域长时间序列“三高”(即时间、空间和过程高分辨率)综合模拟,实现对陆地生态系统的碳氮磷水三维运移、水土流失、水力驱动溶解态和颗粒态碳氮磷横向迁移、碳氮温室气体和污染气体排放、生态系统生产力、水分蒸散发和水分能量平衡等众多可持续发展目标表征变量的预测。该模型广泛推广应用于多尺度区域或流域的复杂过程虚拟科学试验研究和服务于面向生态环境建设与减污降碳的优化调控决策,可望为协同落实多个联合国可持续发展目标提供先进的数值模拟技术支撑。

    Abstract:

    The CNMM-DNDC, which is developed by the authors, is a three-dimension (3D), high-resolution and process-oriented terrestrial hydro-biogeochemical model that fully couples the cycling processes of carbon (C), nitrogen (N), phosphorous (P) and water in terrestrial ecosystems at site, catchment, regional, or global scales. Here, this model is reviewed in terms of development background, basic ideals and theories, core scientific processes, characteristics and features, comprehensive functions, verification by observations, and preliminary applications at site, regional or catchment/basin scales. Since the publication of its first version in 2018, this model has undergone several scientific process improvements and function enhancements. As a result, the cycles of C, N, P elements and water have been fully coupled in this model through numerically linking a series of biogeochemical reactions of these life elements, and matter phase changes and mechanical movements, which are occurring in terrestrial earth surface systems. Wide validations with field comprehensive observations demonstrate that the CNMM-DNDC model can be generally applicable for long time 3D and “3H” integrative simulations of terrestrial ecosystems in different bioclimatic zones from tropical to boreal permafrost regions, wherein the “3H” is referred to high spatial, high temporal and high process resolutions. As this model is designed to well describe the biogeochemical transformations and the 3D movements of the three life elements and water at different (site, ecosystem, catchment/basin, regional or global) scales, available validations and preliminary applications so far have demonstrated its potential to simultaneously predict multiple variables to measure the sustainability in terms of the United Nations Sustainable Goals (SDGs). The predictable variables include at least hydraulic soil erosion, surface runoff and subsurface flow, leaching of water and C, N and P solutes, horizontal flows of dissolved and particle C, N and P substrates or matter, emissions of greenhouse gases (carbon dioxide, methane, and nitrous oxide) and gaseous N pollutants (ammonia and nitric oxide), ecosystem productivity, water evapotranspiration, and balances of energy, water, C, N and P. The CNMM-DNDC model is expected to provide advanced technical support of numerical simulation for the multiple-goal implementations of the SDGs, as it could be a) a robust tool for virtually experimental studies on complex processes at different scales and b) a core model of a decision supporting system to optimize carbon and environmental management.

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历史
  • 收稿日期:2023-05-15
  • 最后修改日期:2023-05-15
  • 录用日期:2023-10-13
  • 在线发布日期: 2023-10-26
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