摘要
陆地生态水文耦合的关键过程是以植被气孔行为调控的植物蒸腾-光合作用的双向耦合,并共同影响着水、能量通量、碳的收支平衡,构建陆地生态水文双向紧密耦合模型是研究其相互作用与反馈的重要基础。本研究基于分布式时变增益模型(DTVGM),改进并发展了其中水、能量通量、光合作用及植物生长等关键模块,耦合以CASACNP为基础的生物地球化学模型,提出了耦合模型的架构、模拟方法及模型主要原理和计算方法,构建了一个耦合陆面水文与生物地球化学循环的生态水文双向紧密耦合模型,为陆面水文-生物地球化学过程的模拟及应用提供基础。
The key process of ecohydrology is the coupling of water and carbon cycles controlled by stoma⁃tal behavior of vegetation,which links the land surface hydrological and ecological processes,and affects the balance among water,energy and carbon.Developing a bidirectional coupled model is significant for the investigation of the interactions of land surface ecohydrological processes.In this study,the Distributed Time Variant Gain Model(DTVGM)is improved with the major modules of water and energy processes,pho⁃tosynthesis,vegetation dynamics and then coupled with the Carnegie-Ames-Stanford Approach Carbon Nitro⁃gen Phosphorous(CASACNP)biogeochemical model,which forms a bidirectional coupled ecohydrological model.Then the model framework,coupling simulation and model theory and method are proposed.The model could be a basis for land surface hydrological and biogeochemical simulations.
作者
曾思栋
夏军
杜鸿
陈向东
ZENG Sidong;XIA Jun;DU Hong;CHEN Xiangdong(Chongqing Institute of Green and Intelligent Technology,Chinese Academy of Sciences,Chongqing 400714,China;Changjiang Institute of Survey,Planning,Design and Research,Wuhan 430010,China;State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China;College of Resources and Environmental Science,South-Central University for Nationalities,Wuhan 430074,China;China Water Exchange,Beijing 100053,China)
出处
《水利学报》
EI
CSCD
北大核心
2020年第1期33-43,共11页
Journal of Hydraulic Engineering
基金
国家自然科学基金青年基金项目(51809008)
湖北省自然科学基金计划项目(2018CFB123)
中南民族大学中央高校基本科研业务费专项资金项目(CZY18042)。
