基于AEZ模型的广西甘蔗生产潜力分析

Analysis on Potential Productivity of Sugarcane in Guangxi Province Based on AEZ Model

基于地理信息系统（GIS）技术和联合国粮农组织（FAO）农业生态区域法（AEZ）对广西甘蔗生产的光温生产潜力、气候生产潜力进行估算。结果表明：广西甘蔗光合生产潜力均值为183．27t／hm^2，理论值范围为169．03—201．33t／hm^2，开发度均值为37．21％；光温生产潜力均值为175．51t／hm^2，理论值范围为154．19～200．75t／hm^2，光温生产潜力开发度均值为38．85％；气候生产潜力理论值范围为142．94～197．21t／hm^2，其平均值为165．88t／hm^2，现实生产潜力平均开发度为41．11％。由此可知，广西甘蔗生产潜力理论值与现实生产力之间的差距较大，开发前景广阔。

Based on the ArcGIS and AEZ models proposed by FAO,the potential of photo-thermal production and the sugarcane production in Guangxi province were investigated. The investigation demonstrated that the average po- tential photosynthetic productive potential was 183.27t/hm^2 ;the theoretical value of photo-thermal potential for sug- arcane production in Guangxi was about 169.03 -201.33t/hm^2 ;the average potential development capacity was 37.21% ;The average potential photo-thermal potential was 175.51 t/hm^2 ;the theoretical value of photo-thermal po- tential for sugarcane production in Guangxi was about 154.19 -200.75t/hm^2 ;the average potential development capacity was 38.85% ;the theoretical value of climatic potential for sugarcane production in Guangxi was about 142.94 - 197.21t/hm^2 ;the average potential development capacity was 41.11%. Results indicated that the sugar- cane production potential had a great gap between the theoretical value and reality. Therefore the development po- tential for sugarcane production in Guangxi is promising.