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学者姓名：肖桂荣
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Abstract ：
The construction of China's ecological civilization, known as 'Beautiful China', necessitates implementing precision watershed management through scientifically informed decision-making. This entails optimizing the spatial distribution of watershed best management practices (the so- called BMP scenario) and proposing multistage implementation plans, or roadmaps that align with practical requirements based on the overarching vision of comprehensive water shed management.The'water shed system simulation-scenariooptimization' method frame work (the simulation-and-optimization-based frame work for short) has demonstrated considerable potential in recent years. To address challenges arising from practical applications of this framework, this study systematically conducted the methodological research: (1) proposing a novel watershed process modeling framework that strikes a balance between modeling flexibility and high-performance computing to model and simulate watershed systems efficiently; (2) introducing slope position units as BMP configuration units and enabling dynamic boundary adjustments during scenario optimization, effectively incorporating practical knowledge of watershed management to ensure reasonable outcomes; (3) presenting an optimization method for determining the implementation orders of BMPs that considers stepwise investment constraints, thereby recommending feasible roadmaps that meet practical needs; and (4) designing a user-friendly participatory watershed planning system to facilitate collaborative decision-making among stakeholders. The effectiveness and practical value of these new methods, tools, and prototype systems are validated through application cases in a representative small watershed. This research contributes to advancing precision watershed management and provides valuable insights for sustainable ecological conservation. The methods proposed within the simulation-and-optimization-based framework in this study are universal methods, which means their application does not depend on the specific implementation, such as the watershed process model, the BMP types considered, the designed BMP configuration strategy, and so on. Further studies should be conducted not only to deepen related theory and method research but also to strengthen promotion and application, especially cooperating with local watershed management agents to provide valuable insights for their sustainable ecological conservation. © 2024 Science Press. All rights reserved.
Keyword ：
Computation theory Computation theory Decision making Decision making Decision support systems Decision support systems Ecology Ecology Investments Investments Soil conservation Soil conservation Water conservation Water conservation Water management Water management Watersheds Watersheds
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| GB/T 7714 | Qin, Chengzhi , Zhu, Liangjun , Shen, Shen et al. Methods for supporting decision-making of precision watershed management based on watershed system simulation and scenario optimization [J]. | Acta Geographica Sinica , 2024 , 79 (1) : 58-75 . |
| MLA | Qin, Chengzhi et al. "Methods for supporting decision-making of precision watershed management based on watershed system simulation and scenario optimization" . | Acta Geographica Sinica 79 . 1 (2024) : 58-75 . |
| APA | Qin, Chengzhi , Zhu, Liangjun , Shen, Shen , Wu, Tong , Xiao, Guirong , Wu, Sheng et al. Methods for supporting decision-making of precision watershed management based on watershed system simulation and scenario optimization . | Acta Geographica Sinica , 2024 , 79 (1) , 58-75 . |
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Using location-based services (LBS) data from the third ring area in Fuzhou city, this study analyzes the spatiotemporal characteristics of block vitality by measuring the density of active population gatherings. It explores the spatiotemporal heterogeneity of block vitality based on a geographically and temporally weighted autoregressive model (GTWAR), considering built environment features such as POI density, functional mix, and road network density. Additionally, it investigates their interactions using a geographic detector and compares differences between weekdays and weekends across five daily periods. Key findings include:(1) The overall urban vitality in the region exhibits a spatial pattern of "one core, two centers, multiple sub-centers, and multiple clusters"and undergoes spatiotemporal dynamic changes across five periods, characterized by 'dispersion, agglomeration, deep agglomeration, and dispersion."(2) The marginal effects of POI density, functional mix, and road network density on block vitality exhibit instability in both spatial and temporal dimensions.(3)Interaction effects between two factors exert a more significant impact on block vitality than the effects of individual factors, with interaction types including dual-factor enhancement and nonlinear enhancement.(4)Differences exist in the spatiotemporal characteristics of block vitality, built environment influences, and their interactions between weekdays and weekends. © 2024 The Authors, published by EDP Sciences.
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| GB/T 7714 | You, Y. , Xiao, G. . Research on the Spatiotemporal Characteristics of Block Vitality based on LBS Data and the Impact Mechanisms of the Built Environment -Taking the Third Ring Road in Fuzhou City as an example [未知]. |
| MLA | You, Y. et al. "Research on the Spatiotemporal Characteristics of Block Vitality based on LBS Data and the Impact Mechanisms of the Built Environment -Taking the Third Ring Road in Fuzhou City as an example" [未知]. |
| APA | You, Y. , Xiao, G. . Research on the Spatiotemporal Characteristics of Block Vitality based on LBS Data and the Impact Mechanisms of the Built Environment -Taking the Third Ring Road in Fuzhou City as an example [未知]. |
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面向美丽中国生态文明建设所需，亟待有效实现流域精细治理的科学决策，以根据流域综合治理愿景目标，优化流域管理措施（BMP）的空间布局方案（即BMP情景）、制定符合实际需求的实施路线图。对此，“流域系统模拟—情景优化”方法框架近年展现出广阔应用前景。本文介绍了该框架在应对实际应用需求中尚存的一系列问题，开展了体系性的方法研究：(1)提出新的流域过程建模框架，以兼顾建模灵活性和高性能计算、高效实现流域系统模拟；(2)提出以坡位单元作为BMP空间配置单元、并在情景优化过程中可进行单元边界动态调整的BMP情景优化方法，可有效考虑流域综合治理的经验知识，保障优化结果合理性；(3)提出考虑分阶段投资约束的BMP情景实施次序优化方法，可推荐出符合实际落地需求的实施路线图；(4)设计研发用户友好的参与式流域规划系统，供各方利益相关者协商决策。通过典型小流域应用案例验证了上述新方法、工具和原型系统的有效性和实用价值。
Keyword ：
决策支持 决策支持 情景分析 情景分析 智能优化 智能优化 流域管理措施 流域管理措施 流域系统模拟 流域系统模拟
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| GB/T 7714 | 秦承志 , 朱良君 , 申申 et al. 基于流域系统模拟一情景优化的精细治理决策支持方法 [J]. | 地理学报 , 2024 , 79 (01) : 58-75 . |
| MLA | 秦承志 et al. "基于流域系统模拟一情景优化的精细治理决策支持方法" . | 地理学报 79 . 01 (2024) : 58-75 . |
| APA | 秦承志 , 朱良君 , 申申 , 吴彤 , 肖桂荣 , 吴升 et al. 基于流域系统模拟一情景优化的精细治理决策支持方法 . | 地理学报 , 2024 , 79 (01) , 58-75 . |
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The causes of landslide disasters are complex, and landslide susceptibility assessment is of great significance for disaster warning, prevention, and control management. In the previous mapping studies on landslide susceptibility assessment, land use change factor was not considered. This paper proposed a combination of factors for landslide susceptibility assessment by considering land use dynamic change factor. The landslide frequency ratio was used to quantitatively measure the correlation between land use change and landslide development. And Logistic Regression (LR) model was used to compare the prediction ability of the model before and after the introduction of land use change factor. We constructed three machine learning models: Decision Tree (DT), Gradient Boosting Decision Tree (GBDT), and Random Forest (RF). We used AUC and other indicators to compare model performance. Finally, we took Sanming City of Fujian Province as the study area and the whole Fujian Province as the verification area to conduct the landslide susceptibility assessment research. The results show that there is a strong correlation between land use change factor and landslide development. The inclusion of land use change factor improves model prediction accuracy, which indicates that it is necessary to introduce dynamic factor in the assessment of landslide susceptibility. The verification results show that RF model has higher prediction accuracy than DT and GBDT. The high landslide prone areas are mainly distributed in the west and central of Sanming City, where the land use change degree is high, and the impact of human activities is great. The low landslide prone areas basically locate in the high-altitude areas with little influence of human activities. This study provides a new research perspective for landslide susceptibility assessment and helps to explore the impact of human activities on disaster formation. © 2023 Journal of Geo-information Science. All rights reserved.
Keyword ：
Adaptive boosting Adaptive boosting Decision trees Decision trees Disaster prevention Disaster prevention Disasters Disasters Forecasting Forecasting Landslides Landslides Land use Land use Logistic regression Logistic regression
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| GB/T 7714 | Lin, Xuanxin , Xiao, Guirong , Zhou, Houbo . Landslide Susceptibility Assessment Method Considering Land Use Dynamic Change [J]. | Journal of Geo-Information Science , 2023 , 25 (5) : 953-966 . |
| MLA | Lin, Xuanxin et al. "Landslide Susceptibility Assessment Method Considering Land Use Dynamic Change" . | Journal of Geo-Information Science 25 . 5 (2023) : 953-966 . |
| APA | Lin, Xuanxin , Xiao, Guirong , Zhou, Houbo . Landslide Susceptibility Assessment Method Considering Land Use Dynamic Change . | Journal of Geo-Information Science , 2023 , 25 (5) , 953-966 . |
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武夷山国家公园作为全国十个国家公园之一,是全球生物多样性保护的关键地带,它保存了地球同纬度最完整最典型的中亚热带原生性森林生态系统,对其进行生态系统服务价值评估,不仅为国家公园原真性和完整性的保护提供基础,也为国家公园的建设和发展提供数据支撑和决策支持.利用千年生态系统评估方法和改进的当量因子法,将武夷山国家公园服务功能分供给服务、调节服务、支持服务和文化服务四大类及食物生产、原料生产、气体调节等九小类服务功能.再根据研究区的实际情况修订当量因子表,结合计算出的武夷山国家公园标准当量的价值量以及土地利用情况,评估出武夷山国家公园生态系统服务价值.结果表明:武夷山国家公园生态系统服务价值高达67.18亿元;就生态系统而言,所提供的服务价值从高到低依次为:森林(66.58亿元)>水体(0.31亿元)>草地(0.23亿元)>农田(0.034亿元)>湿地(0.026亿元)>裸地(0.001亿元);就生态系统服务类别而言,其服务价值从高到低依次为:调节服务(34.02亿元)>支持服务(20.32亿元)>供给服务(7.86亿元)>文化服务(4.98亿元).经验证,该研究方法及成果合理适用,为我国国家公园体制建立提供了一套生态系统服务价值计算模式.
Keyword ：
土地利用 土地利用 当量因子法 当量因子法 服务价值 服务价值 武夷山国家公园 武夷山国家公园 生态系统 生态系统
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| GB/T 7714 | 沈若兰 , 肖桂荣 . 武夷山国家公园生态系统服务价值评估 [J]. | 生态科学 , 2023 , 42 (2) : 58-65 . |
| MLA | 沈若兰 et al. "武夷山国家公园生态系统服务价值评估" . | 生态科学 42 . 2 (2023) : 58-65 . |
| APA | 沈若兰 , 肖桂荣 . 武夷山国家公园生态系统服务价值评估 . | 生态科学 , 2023 , 42 (2) , 58-65 . |
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滑坡灾害成因复杂，滑坡易发性评估对灾害预警与防控管理具有重要意义。由于以往易发性制图研究中未顾及土地利用变化因素，本文提出考虑土地利用动态变化的滑坡易发性评估因子组合。采用滑坡频率比定量衡量土地利用变化与滑坡发育的相关关系，并基于逻辑回归模型（Logistic Regression, LR）对比引入土地利用变化因子前后的模型预测效果。在此基础上，构建决策树（Decision Tree, DT）、梯度提升树（Gradient Boosting Decision Tree, GBDT）与随机森林（Random Forest, RF）模型，利用AUC等指标对模型预测性能进行对比分析。最后以福建省三明市为研究区，以整个福建省为验证区，开展滑坡易发性评估研究。研究表明：土地利用变化因子与滑坡发育之间具有更强的关联特征，在滑坡易发性评估中引入动态变化因子具有必要性。RF模型比DT与GBDT具有更高的预测精度与准确率。滑坡高易发区主要分布在三明市西部与中部地区，该区域土地利用变化程度较大、受人类活动影响大；低易发区基本位于人类活动影响较小的高海拔区域。本研究为滑坡易发性评估提出一种新的研究角度，为探究人类对灾害形成的影响提供帮助。
Keyword ：
三明市 三明市 决策树 决策树 土地利用变化 土地利用变化 易发性 易发性 梯度提升树 梯度提升树 滑坡 滑坡 随机森林 随机森林 集成学习 集成学习
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| GB/T 7714 | 林炫歆 , 肖桂荣 , 周侯伯 . 顾及土地利用动态变化的滑坡易发性评估方法 [J]. | 地球信息科学学报 , 2023 , 25 (05) : 953-966 . |
| MLA | 林炫歆 et al. "顾及土地利用动态变化的滑坡易发性评估方法" . | 地球信息科学学报 25 . 05 (2023) : 953-966 . |
| APA | 林炫歆 , 肖桂荣 , 周侯伯 . 顾及土地利用动态变化的滑坡易发性评估方法 . | 地球信息科学学报 , 2023 , 25 (05) , 953-966 . |
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突发公共卫生事件极易引起社会恐慌,新冠肺炎更是全球聚焦的重大热点事件,客观了解疫情期间的公众情绪响应,有利于政府及相关部门合理管控舆情.本研究以疫情流行期间网民微博博文为基础,通过文本挖掘的方式探索疫情期间网民情感倾向,提出一种以卷积神经网络和双向长短期记忆网络为基础,并融合注意力机制的多通道情感极性分析方法.该方法首先对微博文本数据进行分词和停用词的预处理,通过Word2Vec模型获取词向量表达式,使用多通道CNNs-BiLSTM模型抽取多尺度文本特征,融合注意力机制调整特征权重,以语义相关度进行文本情感倾向判断.通过COVID-19微博舆情数据开展实验验证,结果表明,该方法相较于其他基准模型获得了较高的准确率,能够充分利用多维矩阵捕获丰富的文本特征,具有一定的优越性.
Keyword ：
双向长短期记忆网络 双向长短期记忆网络 情感极性分析 情感极性分析 注意力机制 注意力机制 深度学习 深度学习
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| GB/T 7714 | 谢玉惠 , 肖桂荣 . 融合注意力机制的多通道CNNs-BiLSTM情感极性分析方法 [J]. | 小型微型计算机系统 , 2023 , 44 (6) : 1140-1145 . |
| MLA | 谢玉惠 et al. "融合注意力机制的多通道CNNs-BiLSTM情感极性分析方法" . | 小型微型计算机系统 44 . 6 (2023) : 1140-1145 . |
| APA | 谢玉惠 , 肖桂荣 . 融合注意力机制的多通道CNNs-BiLSTM情感极性分析方法 . | 小型微型计算机系统 , 2023 , 44 (6) , 1140-1145 . |
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本文基于东南沿海地区1960—2019年台风路径数据，结合台风风场参数模型对不同类别的路径进行了风速模拟，并在此基础上进行了重现期风速估计，分析了不同类别台风路径的危险性差异.研究结果表明：(1)登陆东南沿海地区的台风路径主要有西北直行类台风（西北行台风、远西北行台风）和东北转向型台风，其中西北直行类台风数量最多且整体呈下降的趋势，东北转向型台风约占1/3，近20年呈上升的趋势；(2)不同路径台风的影响范围具有明显差异，东北转向类台风的影响范围明显大于西北直行类台风的影响范围；(3)远西北行台风极值风速最高，西北行台风极值风速最低，即远西北行台风危险性最大，并由东向西呈阶梯状递减.
Keyword ：
台风路径 台风路径 极值风速 极值风速 路径危险性 路径危险性 重现期 重现期 风速估计 风速估计
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| GB/T 7714 | 尹玉环 , 肖桂荣 , 周侯伯 . 东南沿海不同路径台风危险性研究 [J]. | 海南大学学报(自然科学版) , 2023 , 41 (04) : 387-396 . |
| MLA | 尹玉环 et al. "东南沿海不同路径台风危险性研究" . | 海南大学学报(自然科学版) 41 . 04 (2023) : 387-396 . |
| APA | 尹玉环 , 肖桂荣 , 周侯伯 . 东南沿海不同路径台风危险性研究 . | 海南大学学报(自然科学版) , 2023 , 41 (04) , 387-396 . |
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基于改进的ECOMSED和RCA模型，针对闽江河口的地形特点，引入干湿网格判别法，建立适用于闽江河口的三维水动力水质耦合模型，模拟研究闽江河口的无机氮、无机磷、化学耗氧量和溶解氧等水质要素的浓度分布，并对海水富营养化状况进行评价.结果表明：构建的水质耦合模型能较好地反演闽江河口的水质特征；闽江河口的富营养化指数较高，基本处于重度富营养化状态，且富营养化指数呈现从感潮淡水区向海水区逐渐递减的阶梯状分布；三类主要污染物的表层浓度平面分布均从河口内往东南海域向外海逐渐递减.
Keyword ：
ECOMSED模型 ECOMSED模型 RCA模型 RCA模型 富营养化 富营养化 数值模拟 数值模拟 闽江河口 闽江河口
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| GB/T 7714 | 高伟 , 肖桂荣 , 林金城 . 闽江河口富营养化数值模拟 [J]. | 海南大学学报(自然科学版) , 2022 , 40 (03) : 260-270 . |
| MLA | 高伟 et al. "闽江河口富营养化数值模拟" . | 海南大学学报(自然科学版) 40 . 03 (2022) : 260-270 . |
| APA | 高伟 , 肖桂荣 , 林金城 . 闽江河口富营养化数值模拟 . | 海南大学学报(自然科学版) , 2022 , 40 (03) , 260-270 . |
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突发性地质灾害危险性评估对灾害防治与风险管理具有重要意义.由于不同地区影响灾害发生的因子各不相同,实际评估过程中难以全面客观地选取适宜的评估因子.机器学习对处理灾害系统的高维非线性问题独具优势,但因模型难以调优而评估效果有限.本文尝试提出一种双向优化的滑坡危险性评估方法:在构建因子敏感性指数开展定量敏感性分析的基础上,结合重要性分析、相关性分析、共线性分析构建四维(Four-Dimensional,4D)特征筛选法用于评估因子综合优选;为克服模型难以调优的问题,引入差分进化(Differential Evolution,DE)算法优化支持向量机(Support Vector Machine,SVM)与多层感知机(Multi-Layer Perceptron,MLP)2种推广能力较强的机器学习模型.最后,以福建省滑坡为例,开展评估方法研究.研究表明:4D特征筛选法能更加客观全面地选取适宜性更高的危险性评估因子,从而降低数据维度、减少信息冗余以提升评估模型性能;DE算法对SVM与MLP具有显著的优化效果,有益于增强模型滑坡危险性的评估准确度,DE-SVM、DE-MLP相较于未优化前模型的AUC值分别提升了 4.43％与4.37％;基于双向优化的滑坡危险性评估结果表明,降雨与土地利用类型对福建省滑坡发生具有重要影响作用,福建省滑坡极高危险区普遍年均降雨较高、地形复杂多变,极低危险区主要位于东南沿海一带及闽江流域两侧.本研究为滑坡危险性评估中的影响因子客观选取与机器学习模型调优提供了一定思路.
Keyword ：
危险性 危险性 四维特征筛选法 四维特征筛选法 因子敏感性指数 因子敏感性指数 多层感知机 多层感知机 差分进化算法 差分进化算法 支持向量机 支持向量机 滑坡 滑坡 福建省 福建省
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| GB/T 7714 | 周侯伯 , 肖桂荣 , 林炫歆 et al. 基于特征筛选与差分进化算法优化的滑坡危险性评估方法 [J]. | 地球信息科学学报 , 2022 , 24 (12) : 2373-2388 . |
| MLA | 周侯伯 et al. "基于特征筛选与差分进化算法优化的滑坡危险性评估方法" . | 地球信息科学学报 24 . 12 (2022) : 2373-2388 . |
| APA | 周侯伯 , 肖桂荣 , 林炫歆 , 尹玉环 . 基于特征筛选与差分进化算法优化的滑坡危险性评估方法 . | 地球信息科学学报 , 2022 , 24 (12) , 2373-2388 . |
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