GIS支持下的江西省冬季农业合理布局气候区划

Climate Division About Rational Arrangement of Winter AgriculturalProduction On the Support of GIS Techniques

在分析历次亚热带山区气候考查资料的基础上 ,建立了冬季气候要素垂直变化分区模型。引入GIS中的数字高程模型 (DEM )为主要因子 ,推算了全省不同地理背景下500m×500m网格点上的气候要素。利用GIS的空间分析工具 ,按照给定的指标和模型 ,通过图层间的逻缉运算 ,得到江西省冬季农业气候区划专题图和5种冬作物气候生产潜力专题图 ,为冬季农业的合理布局气候区划提供分析依据。

On the basis of analyzing mountainous climate data of subtropical regions, vertical changing models of winter climate factors were created. Climatic Values of different geographical landscapes were implemented when introducing DEM as important factors. With the spatial analyzing tools and certain index and models, thematic maps of winter climate division and climate potential productivity of five winter crops were gotten. With the helping of these jobs, rational arrangement of winter agricultural events can be done.