安徽省经济作物秸秆资源时空分布特征

Characteristics of Spatial and Temporal Distribution of Cash Crop Straw Resources in Anhui Province

以2014—2023年安徽省经济作物的种植面积和产量数据为基础,运用草谷比法对秸秆资源量进行估算,并分析其随时间的演变趋势,采用ArcGis软件优化分类法及九宫格矩阵图对经济作物秸秆的空间分布特性及单产的分级情况进行图形化展示。结果表明:2014—2023年安徽省经济作物播种面积呈先下降后上升态势,而秸秆产量则呈短暂上升后下降又缓慢回升的态势;经济作物秸秆资源呈“北高南低”的空间分布特征,主要集中在安庆、合肥、蚌埠和阜阳4市;单产面积与人均单产最高分别为蚌埠市和安庆市。

Based on the planting area and production data of cash crops in Anhui Province from 2014 to 2023,the straw resources were estimated by using the grass-valley ratio method,and its evolution trend over time was analyzed.In order to clearly present the spatial distribution characteristics of cash crop straw and the grading of yields,ArcGis software was used to optimize the classification method together with the nine-grid matrix diagram for graphical presentation.The results of the study show that:from 2014 to 2023,the sown area of cash crops in Anhui Province showed a first decline and then increase momentum,while the straw production was briefly rising and then declining and then slowly rebounded;the spatial distribution of cash crop straw resources was characterized by"high in the north and low in the south",which mainly concentrated in Anqing,Hefei,Bengbu and Fuyang.The spatial distribution of cash crop straw resources is characterized by"high in the north and low in the south",mainly concentrated in Anqing,Hefei,Bengbu and Fuyang;the highest yield area and per capita yield are found in Bengbu and Anqing,respectively.