云霄县蕹菜气候适宜性区划研究

Study on Climatic Suitability Zoning of Water Spinach in Yunxiao County

摘要: 文章以福建省云霄县蕹菜种植为研究对象，开展气候适宜性区划研究。首先，系统梳理了国内外蕹菜气候适宜性和区划方法的研究进展，阐述了研究背景及意义。通过分析云霄县气候特征和蕹菜生长特性，构建了包含温度、光照、水分等指标的气候适宜性评价体系，并采用主客观赋权法确定指标权重。其次，基于GIS技术，实现了云霄县蕹菜气候适宜性区划，将全县划分为高度适宜区、中度适宜区和低度适宜区，分析了不同区域的气候特征及其与地形地貌的关系。研究结果表明，云霄县蕹菜种植具有明显的气候适宜性区域差异，海拔高度是影响适宜性的重要因素。最后，针对区划结果提出了农业措施调整和气象灾害防御等对策建议，为云霄县蕹菜产业布局优化和科学种植提供了理论依据。研究不仅丰富了特色蔬菜气候适宜性区划的理论方法，也为类似地区开展相关研究提供了参考。

Abstract: This study investigates the climatic suitability zoning for water spinach (Ipomoea aquatica) cultivation in Yunxiao County, Fujian Province. First, it systematically reviews the research progress on climatic suitability and zoning methodologies for water spinach both domestically and internationally, clarifying the research background and significance. By analyzing the climatic characteristics of Yunxiao County and the growth traits of water spinach, a comprehensive climatic suitability evaluation system was established, incorporating indicators such as temperature, light, and moisture. Objective and subjective weighting methods were employed to determine the weights of these indicators. Second, utilizing Geographic Information System (GIS) technology, a climatic suitability zoning map for water spinach cultivation in Yunxiao County was generated, categorizing the region into highly suitable, moderately suitable, and poorly suitable zones. The climatic features of these distinct zones and their relationships with topography were analyzed. Results indicate a significant regional variation in climatic suitability for water spinach cultivation, with altitude identified as a critical influencing factor. Finally, countermeasures regarding agricultural practice adjustments and meteorological disaster prevention are proposed based on the zoning outcomes. This research provides a theoretical foundation for optimizing the industrial layout and promoting the scientific cultivation of water spinach in Yunxiao County. Furthermore, it enriches the theoretical methodology for climatic suitability zoning of specialty vegetables and serves as a reference for similar studies in other regions.