[目的]以丘陵县域为研究对象,分析甘蔗生长环境,开展地块尺度的甘蔗产业精准规划研究,为政府部门调整种植结构提供可靠依据.[方法]前期以广西崇左市江州区为例,利用面向农作物地块对象分类方法提取甘蔗种植面积,构建多指标的甘蔗种植适宜性评价综合模型将蔗区划分为最适宜、 适宜、次适宜和不适宜4个区域.现以地块尺度评价结果为基底,利用空间叠加分析和缓冲区分析方法划定蔗田保护区及规划种植新增区.在蔗田保护区基础上,根据坡度值评估蔗田保护区发展机械化作业的潜力,通过统计对比方法分析土壤肥力状况并提出改善方案.参照现有"双高"糖料蔗基地生长环境,基于蔗田保护区研究"双高"糖料蔗基地建设适宜区.[结果](1)甘蔗种植退耕面积为6818.83hm2,蔗田保护区面积为6.986618万hm2,规划种植新增区4374.48hm2;(2)适宜发展大型机械作业、 中小型机械作业面积分别占蔗田保护区面积的17.57%、55.55%;(3)蔗田保护区土壤pH整体偏低,pH<6.5的土壤面积占85.63%;土壤有机质含量较高,符合甘蔗正常生长需求;土壤全氮含量低于1.00g/kg的面积占34.49%;土壤有效磷含量未能达到丰富水平面积占73.83%;土壤速效钾含量低于100mg/kg面积占78.33%;(4)适宜建设"双高"糖料蔗基地区域主要位于濑湍镇、 江州镇、 太平街道、 左州镇、 驮卢镇等乡镇.[结论]科学精细的甘蔗产业规划对于提高甘蔗产量及促进产业可持续发展具有重要意义,同时文章研究方法对于其他产业规划具有参考价值.%Taking the hilly county as the object of study, this paper analyzed the growth environment of sugarcane, carried out the accurate planning of sugarcane industry at the block scale, and provided a reliable basis for the government to adjust the planting structure. In the early stage, the sugarcane planting area was extracted based on crop block object classification and a multi-index sugarcane planting suitability evaluation model was established to divide the sugarcane plant into the most suitable, appropriate, suboptimal and non-suitable areas in Jiangzhou District, Chongzuo City, Guangxi. Based on the results of land parcel scale assessment, the space-added analysis and buffer analysis methods were used to delineate the sugarcane conservation area and plan planting new areas. On sugarcane reserve basis, according to the slope value, the development of mechanization of sugarcane reserve potential was evaluated, soil fertility status was analyzed through the statistical comparative method and the improvement scheme was put forward. "Double high" sugarcane base suitable area was planned based on the current "double high" sugarcane base growth environment. The results showed that (1) The area of returning farmland of sugarcane was 6818. 83 hm2 , the area of sugarcane canopy was 69866. 18 hm2 , and the planned sugarcane newly added area was 4374. 48 hm2 . (2) On the reserve of large machinery operation, the area suitable for the development of large-scale machinery operation, small and medium -sized machinery operation area of sugarcane field area were 17. 57% and 55. 55%, respectively. (3) The soil pH of the sugarcane reserve was low, and the soil area of pH <6. 5 accounted for 85. 63%. The soil organic matter content in the sugarcane field was high, which conformed to the normal growth demand of sugarcane. The area with total nitrogen in the sugarcane field was lower than 1. 00 g/kg accounting for 34 . 49%. The soil effective phosphorus content failed to reach a rich level of 73 . 83%. The soil available potassium content in the sugarcane field was less than 100 mg/kg, accounting for 78. 33%. (4) The areas suitable for the construction of "double high" sugar cane base area were located in Laituan town, Jiangzhou town, Taiping street, Zuozhou town and Tuolu town. Scientific and precise sugarcane industry planning was of great significance to increase sugarcane yield and promote the sustainable development of the industry. Meanwhile, the research methods of this paper can be of reference value for other industrial planning.
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