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Climate Efficiency for Sugarcane Production in Brazil and its Application in Agricultural Zoning

机译：巴西甘蔗产量的气候效率及其在农业分区中的应用

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摘要

Climate efficiency is an index that shows quantitative reduction related to production caused by the drought. Using climate efficiency in zoning agricolas sure is a vanguard in agrometeorology. Therefore, we aimed to simulate the climate efficiency for sugarcane production in Brazil and test its use in agricultural zoning. Mean annual air temperature, total annual precipitation, and climate efficiency were the climatic variables used to define suitable areas for sugarcane cultivation. Potential and actual yield was established using the agroecological zone method. Regions with mean annual temperatures between 28 and 38 degrees C, annual precipitations between 1000 and 1500 mm year(-1), and climate efficiency higher than 0.65 were considered climatically suitable for cultivation. The interpolation and crossing of information allowed obtaining the climatic aptitude zoning of sugarcane production for Brazil. Kriging was used as an interpolation method, using the spherical model, one neighbor, and a 0.25 degrees resolution (27.75 km). The Brazilian states were divided into three major groups, according to sugarcane climate efficiency. The most favorable states for sugarcane production had a mean climate efficiency of 0.92. On the other hand, the states with the lowest climate efficiencies presented values of 0.59. Climatic aptitude zoning shows that 24.45% of the Brazilian territory is climatically suitable for sugarcane cultivation. Mato Grosso do Sul State has favorable climatic aptitude in 98% of its territory. The aptitude of productive losses due to climate efficiency is the lowest from January to April in Brazil. The Midwest and Northeast regions have the lowest climate efficiencies from June to September, thus requiring other alternatives, such as irrigation systems for crop maintenance. The use of climate efficiency to elaborate agricultural zoning allows determining with a high accuracy suitable areas for sugarcane cultivation.
机译：气候效率是表现出与干旱引起的生产相关的定量减少的指数。在分区Agricolas中使用气候效率肯定是Agrometomatorology的先锋。因此，我们旨在模拟巴西甘蔗生产的气候效率，并测试其在农业分区中的应用。平均年度空气温度，年度降水量和气候效率是用于定义合适的甘蔗种植区域的气候变量。利用农业生态区法建立了潜力和实际产量。平均年温度的区域在28到38摄氏度之间，1000至1500 mm之间的年沉淀（-1），高于0.65的气候效率被视为培养。信息的插值和交叉允许获得巴西甘蔗生产的气候才能分区。 Kriging用作插值方法，使用球形模型，一个邻居和0.25度分辨率（27.75 km）。根据甘蔗气候效率，巴西国家分为三个主要群体。甘蔗产量最有利的国家的平均气候效率为0.92。另一方面，气候效率最低的州提出了0.59的价值。气候才能分区表明，24.45％的巴西领土上的气候适合甘蔗栽培。 Mato Grosso Do Sul Stude在其领土的98％中具有良好的气候才能。由于气候效率导致的高效损失是从巴西1月到4月的最低限度。中西部和东北地区的气候效率最低于6月至9月，因此需要其他替代品，如灌溉系统进行作物维护。利用气候效率来制定农业分区，允许在高精度的甘蔗栽培中确定合适的区域。

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