基于GIS的台湾青枣在福建引扩种的气候适宜性区划
发布时间:2019-05-21 08:47
【摘要】:为合理利用福建气候资源、优化台湾青枣在福建的种植布局,基于GIS开展台湾青枣在福建引扩种的气候适宜性区划。根据台湾青枣的生长气象指标、生命周期和生产管理特点,选取≥10℃年活动积温(∑T≥10℃)、年平均气温(Tavg)、90%保证率年极端最低气温(T90%JDW)、年降水量(R)、年日照时数(S)5个气象因子作为区划指标,构建台湾青枣的气候适宜性区划指标体系;采用专家打分法和层次分析法对区划指标进行权重分析,建立气候适宜指数算法;基于气象要素值、经度、纬度、海拔高度,通过线性回归建立5个区划指标的小网格推算模型;结合小网格推算模型和气候适宜指数算法,开展台湾青枣在福建引扩种的气候适宜性区划;采用前期相关研究成果、青枣种植现状对区划结果的可靠性进行验证。结果表明:台湾青枣的适宜种植区主要分布在泉州市辖区以南的沿海县市和漳州市的部分内陆县市;次适宜区主要分布在福建中部沿海地区及龙岩南部的永定、上杭部分乡镇,该区种植青枣可能遭受寒冻害,应注意低温防护;其余县市为不适宜种植区。区划结果与前期研究成果和青枣种植现状一致。研究结果可为台湾青枣在福建的引种、扩种和种植结构调整提供参考。
[Abstract]:In order to make rational use of Fujian climate resources and optimize the planting layout of Taiwan jujube in Fujian, the climatic suitability regionalization of Taiwan jujube in Fujian was carried out based on GIS. According to the growth meteorological index, life cycle and production management characteristics of Taiwan jujube, the annual active accumulated temperature 鈮,
本文编号:2481978
[Abstract]:In order to make rational use of Fujian climate resources and optimize the planting layout of Taiwan jujube in Fujian, the climatic suitability regionalization of Taiwan jujube in Fujian was carried out based on GIS. According to the growth meteorological index, life cycle and production management characteristics of Taiwan jujube, the annual active accumulated temperature 鈮,
本文编号:2481978
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