机构地区:[1]中国科学院大气物理研究所大气边界层物理和大气化学国家重点实验室,北京100029 [2]中国科学院大学地球与行星科学学院,北京100049
出 处:《大气科学》2024年第1期92-107,共16页Chinese Journal of Atmospheric Sciences
基 金:中国科学院战略性先导科技专项XDA23070100;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”。
摘 要:CNMM-DNDC模型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物理、化学、生物过程层面,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模型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”(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,可望为协同落实联合国多个可持续发展目标提供先进的数值模拟技术支撑。The CNMM-DNDC model,which is developed by the authors,is a three-dimensional(3D),high-resolution,and process-oriented terrestrial hydro-biogeochemical model that fully couples the cycling processes of carbon(C),nitrogen(N),phosphorus(P),and water in terrestrial ecosystems on the site,catchment,regional,or global scale.This work reviews the proposed model based on the development background,basic ideals,and theories;core scientific processes,characteristics,and features;comprehensive functions;observational verifications;and preliminary applications on the site,regional,or catchment/basin scale.Since the publication of its first version in 2018,this model has undergone several improvements in scientific process and function.The complete coupling of C,N,P,and water cycles in this model has been realized by numerically linking a series of biogeochemical reactions of these life elements and phase changes and mechanical movements of matter occurring in terrestrial earth surface systems.Wide validations with comprehensive field observations indicate that the proposed CNMM-DNDC model can be generally applied to long-time 3D and“3H”integrative simulations of terrestrial ecosystems in different bioclimatic zones from tropical to boreal permafrost regions;here,“3H”refers to high spatial,temporal,and process resolutions.Because this model was developed to efficiently describe the biogeochemical transformations and 3D movements of the three life elements and water on different scales(site,ecosystem,catchment/basin,regional,or global),current validations and preliminary applications could demonstrate its potential to simultaneously forecast multiple variables for estimating ecosystem sustainability in terms of the United Nations Sustainable Goals(SDGs).The predictable variables include hydraulic soil erosion;surface runoff and subsurface flow;leaching of water and C,N,and P solutes;horizontal flows of dissolved and particulate C,N,and P substrates or matter;greenhouse gases(carbon dioxide,methane,and nitrous oxide)and
关 键 词:碳氮磷水循环全耦合模拟 水文—生物地球化学过程模型 CNMM-DNDC模型 联合国可持续发展目标
分 类 号:P49[天文地球—大气科学及气象学]
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