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沿海平原河网适宜生态配水量分析 被引量:2
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作者 盛海峰 周芬 田传冲 《浙江水利科技》 2022年第6期27-31,共5页
平原河网生态配水可维持平原河网生态稳定、有效促进水体流动、改善河网水环境,是目前普遍采用的改善河网生态环境的措施。基于浙江省沿海平原河网,提出平原河网生态需水分为基本生态需水和目标生态需水,采用Tennant法和水量平衡法、目... 平原河网生态配水可维持平原河网生态稳定、有效促进水体流动、改善河网水环境,是目前普遍采用的改善河网生态环境的措施。基于浙江省沿海平原河网,提出平原河网生态需水分为基本生态需水和目标生态需水,采用Tennant法和水量平衡法、目标流速法和换水频次法分别计算基本生态需水量和目标生态需水量,为确定平原河网生态配水量、分析保障程度提供依据。 展开更多
关键词 沿海平原河网 生态配水量 水量平衡 TENNANT法 目标流速 换水频次
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A Functional-Structural Model of Rice Seedling Coupled with Nitrogen Metabolism 被引量:1
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作者 Zhuoyang Yusang Lifeng Xu +2 位作者 Weilong Ding Zhangyun Yi Yunwei Qiu 《Journal of Agricultural Science and Technology(B)》 2014年第8期652-660,共9页
With the ability of representing the association and inner-feedback between plant morphological structure and physiological functions, functional-structural plant modeling (FSPM) approach has been used in many works... With the ability of representing the association and inner-feedback between plant morphological structure and physiological functions, functional-structural plant modeling (FSPM) approach has been used in many works, trying to better understand the mechanisms of integrating plant functions and its structure, and their communication with environmental factors. To do so, an FSPM of rice seedling was developed in this study, including structural morphogenetic model, photosynthetic model and biomass partitioning module. It can thus describe the developmental course of the rice structure dynamically based on the processes of biomass producing and partitioning. Furthermore, the processes of nitrogen metabolism, which influence the N content and growth dynamics of the virtual rice, were also considered. The model was developed with L-system on a platform established with Java programming language, which took over the parsing and visualization of the L-system strings to 3D objects using Java 3D extended library. The physiological processes in the model can be modified and further improved to gradually meet the needs for modeling the whole life cycle of rice, e.g., considering the respiration, and interaction with other environmental factors like CO2, temperature, etc.. The model was developed to provide a platform to systematically study and understand how plant systems like rice seedling work. The model and the virtualization platform can be expanded to provide decision support on N fertilizer application for the rice seedling and the other crops. 展开更多
关键词 Functional-structural plant model rice seedling nitrogen metabolism L-SYSTEM VISUALIZATION plant model.
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