基于GIS技术探讨我国花生品质空间分异规律

Discussion on Spatial Distribution Differentiation Law of Peanut Quality in China Based on GIS Technology

探讨一种利用GIS技术实现定量分析花生品质空间分异规律的方法。根据光、温、水、土与花生品质表现的耦合性,选择对花生品质有影响的9个生态因子,建立空间分布分析模型,在Arcgis环境下利用该模型分析我国花生品质的空间分异规律。结果表明,借助于GIS技术,可以实现在空间上分析花生品质的分异规律,以花生脂肪含量为例,其空间分布趋势明显,呈从北至南减小趋势,其高含量区域主要分布在甘新区域,而川渝黔地区最低。分析结果对花生生产及育种部门有针对性地提高花生品质,开展品质育种工作,建立花生专用生产基地、优化区域生产布局具有指导性意义。同时,该方法可以为其他作物品质、种植等区划工作提供借鉴。

A method for quantitative analysis of peanut quality spatial distribution law based on GIS technology was discussed.A spatial analysis model for peanut quality was established based on 9 ecological factors influencing peanut quality（light,temperature,water and soil,etc）.The results showed that it can be achieved in the analysis of peanut quality differentiation law in space with GIS technology.Taking peanut oil content as an example,the spatial distribution of peanut oil content gradually decreases form north to south,high-content region distributes mainly in Gansu and Xinjiang,the lowest region mainly in Sichuan,Chongqing and Guizhou.The results have instructive significance for production and breeding department to improve peanut quality,establish peanut special production base,optimize regional production layout,and provide a reference for quality rating and planting of other crops.