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A Fuzzy Inference System for Seagrass Distribution Modeling in the Mediterranean Sea: A First Approach
Water ( IF 3.4 ) Pub Date : 2020-10-21 , DOI: 10.3390/w12102949
Dimitra Papaki , Nikolaos Kokkos , Georgios Sylaios

A Mamdani-type fuzzy-logic model was developed to link Mediterranean seagrass presence to the prevailing environmental conditions. UNEP-WCMC (seagrass presence), CMEMS, and EMODnet (oceanographic/environmental) datasets, along with human-impact parameters were utilized for this expert system. The model structure and input parameters were tested according to their capacity to accurately predict the presence of seagrass families at specific locations. The optimum Fuzzy Inference System (FIS) comprised four input variables: water depth, sea surface temperature, nitrates, and bottom chlorophyll-a concentration, exhibiting reasonable precision (76%). Results illustrated that Posidoniaceae prefers cooler water (16–18 °C) with low chlorophyll-a levels ( 0.2 mg/m3), but also slightly warmer (18–19.5 °C) with lower Chl-a levels (<0.2 mg/m3); Cymodoceaceae lives in warm, oligotrophic (19.5–21.0 °C, Chl-a < 0.3 mg/m3) to moderately warm mesotrophic sites (18–21.3 °C, 0.3–0.4 mg/m3 Chl-a). Finally, Hydrocharitaceae thrives in the warm Mediterranean waters (21–23 °C) of low chlorophyll-a content (<0.25 mg/m3). Climate change scenarios show that Posidoniaceae and Zosteraceae tolerate bathymetric changes, and Posidoniaceae and Zosteraceae are mostly affected by sea temperature rise, while Hydrocharitaceae exhibits tolerance at higher sea temperatures. This FIS could aid the protection of vulnerable seagrass ecosystems by national and regional policy-makers and public authorities.

中文翻译:

地中海海草分布建模的模糊推理系统:第一种方法

开发了一个 Mamdani 型模糊逻辑模型,将地中海海草的存在与普遍的环境条件联系起来。该专家系统利用了 UNEP-WCMC(海草存在)、CMEMS 和 EMODnet(海洋/环境)数据集以及人类影响参数。根据模型结构和输入参数在特定位置准确预测海草科存在的能力进行测试。最佳模糊推理系统 (FIS) 包含四个输入变量:水深、海面温度、硝酸盐和底部叶绿素 a 浓度,表现出合理的精度 (76%)。结果表明,Posidoniaceae 喜欢较冷的水 (16–18 °C) 和低叶绿素 a 水平 (0.2 mg/m3),但也喜欢稍暖 (18–19.5 °C) 和较低 Chl-a 水平 (<0.2 mg/m3) ); Cymodoceaceae 生活在温暖的贫营养(19.5–21.0 °C,Chl-a < 0.3 mg/m3)到中等温暖的中营养位点(18–21.3 °C,0.3–0.4 mg/m3 Chl-a)。最后,Hydrcharitaceae 在叶绿素 a 含量低 (<0.25 mg/m3) 的温暖地中海水域 (21–23 °C) 中茁壮成长。气候变化情景表明,Posidoniaceae 和 Zosteraceae 耐受水深变化,Posidoniaceae 和 Zosteraceae 主要受海水温度升高的影响,而 Hydrocharitaceae 对较高的海水温度表现出耐受性。该 FIS 可以帮助国家和区域决策者和公共当局保护脆弱的海草生态系统。Hydrocharitaceae 在低叶绿素 a 含量 (<0.25 mg/m3) 的温暖地中海水域 (21–23 °C) 中茁壮成长。气候变化情景表明,Posidoniaceae 和 Zosteraceae 耐受水深变化,Posidoniaceae 和 Zosteraceae 主要受海水温度升高的影响,而 Hydrocharitaceae 对较高的海水温度表现出耐受性。该 FIS 可以帮助国家和区域决策者和公共当局保护脆弱的海草生态系统。Hydrocharitaceae 在低叶绿素 a 含量 (<0.25 mg/m3) 的温暖地中海水域 (21–23 °C) 中茁壮成长。气候变化情景显示,Posidoniaceae 和 Zosteraceae 耐受水深变化,Posidoniaceae 和 Zosteraceae 主要受海水温度升高的影响,而 Hydrocharitaceae 对较高的海水温度表现出耐受性。该 FIS 可以帮助国家和区域决策者和公共当局保护脆弱的海草生态系统。
更新日期:2020-10-21
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