Simulation of rice paddy systems in SWAT: A review of previous applications and proposed SWAT+ rice paddy module
Simulation of rice paddy systems in SWAT: A review of previous applications and proposed SWAT+ rice paddy module
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DOI：
10.25165/j.ijabe.20221501.7147
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发表时间：
2021
影响因子：
2.4
通讯作者：
Philip W. Gassman;Jaehak Jeong;J. Boulange;B. Narasimhan;Tasuku Kato;H. Somura;Hirozumi Watanabe
中科院分区：
文献类型：
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作者：
Philip W. Gassman;Jaehak Jeong;J. Boulange;B. Narasimhan;Tasuku Kato;H. Somura;Hirozumi Watanabe
土壤和水评估工具（SWAT）是一个生态水文流域尺度模型，最初开发于20世纪90年代初，用于模拟土地利用、管理系统和气候对水文和/或水质的影响。首先在美国被采用，该模式的使用随后传播到欧洲，随后又传播到亚洲和其他地区。SWAT的应用范围也急剧扩大，这影响了过去20年来几乎一直在持续进行的模型开发。在亚洲，许多SWAT应用程序的一个关键组成部分是核算水稻产量，这在亚洲大陆的一些次区域很常见。然而，大多数这些研究并没有提供明确的细节，水稻生产是如何模拟SWAT。其他研究表明，当试图在SWAT的标准版本中表示稻田系统时，会出现重大问题，这是由于基于径流曲线数方法或坑洼选项的算法的限制。作为回应，在最近的研究中对SWAT进行了关键修改，从而更准确地表示了稻田系统。这些事态发展表明，需要在SWAT中纳入一个增强的稻田模块，以更好地捕捉稻田水文和污染物动态，这将有助于在亚洲和其他水稻生产地区更好地使用该模型。本文讨论了SWAT模拟水稻生产的相关问题：1）全球水稻生产概况; 2）SWAT发展历史; 3）模拟水稻生产的典型方法; 4）典型方法中存在的问题; 5）为解决模拟稻田系统中的缺陷而进行的最新代码修改; 6）为未来SWAT代码开发标准稻田模块的建议。SWAT中的稻田系统：对之前应用的回顾和拟议的SWAT+稻田模块。
: The Soil and Water Assessment Tool (SWAT) is an ecohydrological watershed-scale model which was initially developed in the early 1990s to simulate the impacts of land use, management systems, and climate on hydrology and/or water quality. First adopted in the U.S., the use of the model then spread to Europe and then later to Asia and other regions. The range of applications that SWAT has been applied to have also expanded dramatically, which influenced ongoing model development which has been virtually continuous over the past two decades. A key component of many SWAT applications in Asia is accounting for rice paddy production that is common in some subregions within the continent. However, most of these studies do not provide explicit details of how rice production was simulated in SWAT. Other research has revealed that significant problems occur when trying to represent rice paddy systems in standard versions of SWAT, due to limitations in algorithms based on the runoff curve number approach or the pothole option. In response, key modifications have been made to SWAT in recent studies that have resulted in more accurate representation of rice paddy systems. These developments point to the need for the incorporation of an enhanced rice paddy module within SWAT to better capture rice paddy hydrological and pollutant dynamics, which would support improved use of the model in Asia and other rice production regions. Subtopics related to simulating rice production in SWAT are discussed as follows: 1) an overview of global rice production; 2) history of SWAT development; 3) typical approaches for simulating rice production; 4) problems associated with the typical approaches; 5) recent code modifications to address deficiencies in replicating rice paddy systems; 6) recommendations for developing a standard rice paddy module for future SWAT codes. of rice paddy systems in SWAT: A review of previous applications and proposed SWAT+ rice paddy module.