基于粮食湿热平衡模型的吉林省粮食储藏生态区划  

Ecological regionalization of grain storage in Jilin based on water and heat balance model of grain

作　　者：吴文福[1] 郭宏伟[1,2] 徐岩[1] 张亚秋[1] 陈思羽[3] 沈谨[4] 刘清[4] 史艳芳[4] 

机构地区：[1]吉林大学生物与农业工程学院,长春130022 [2]国家粮食局信息交流中心,北京100037 [3]佳木斯大学机械工程学院,佳木斯154007 [4]农业部规划设计研究院,北京100125

出　　处：《农业工程学报》2014年第21期286-292,共7页Transactions of the Chinese Society of Agricultural Engineering

基　　金：公益性行业(农业)科研专项经费项目(201003077)

摘　　要：为了达到粮食安全储藏的目的,该文以玉米为研究对象,通过粮食湿热平衡理论与模型融合了温度和相对湿度对粮食储藏的影响,计算出粮食平衡水分(equilibrium moisture content,EMC),采用聚类分析方法和GIS空间数据分析手段,划定了吉林省粮食储藏生态区域,克服了单因素划分存在的弊端,为粮食储藏安全提供可靠的科学依据。结果表明,吉林省粮食储藏区域可划分为3个区:Ⅰ区为中西部平原区,包括白城、长春、四平等地区;Ⅱ区为中东部半山区,包括吉林、辽源、梅河口、通化、白山部分地区等;Ⅲ区为东部山区,包括延边地区、长白等地区。该文分析了各区域年平均空气相对湿度、年平均温度、年平均风速、年平均降水量以及年平均日照时数的变化特点,对采用适宜粮食储藏方法提出建议。通过粮食储藏区域划分,提出了不同的生态储粮模式。该研究为加强相应的储粮措施提供参考。Abstract： According to all the weather data of cities and counties in Jilin Province from 2001 to 2012 publicly released by the National Weather Service, this paper took the corn as research object, and calculated the equilibrium moisture content of grain by combining the effects of temperature and relative humidity on grain storage through grain heat and humid balance theory and model, and adopted the spatial data analysis tool of GIStogether with mathematical cluster analysis to delimit the ecological area for food storage in Jilin Province, which overcame the drawbacks of single factor division and provided a reliable scientific basis for grain storage safety. Jilin grain storage area can be divided into three zones： Zone I is western plains of Jilin Province, including Baicheng, Changchun, Siping; Zone II is in middle eastern area of Jilin Province, including Jilin, Liaoyuan, Meihekou, Tonghua and some areas of Hakusan; Zone III is eastern mountainous region of Jilin Province, including Yanbian, Changbai and other areas. And food storage areas have different characteristics. Among three zones, Zone I is located in the central and western plains of Jilin Province, which has higher temperature, smaller precipitation, smaller air relative humidity, bigger wind speed and longer sunshine hour. The climate is conducive to air circulation and suitable for grain storage. Therefore, this area is the best one among the ecological areas for grain storage in Jilin. The grain storage area should pay attention to reducing the grain temperature in the months from June to September, and mechanical cooling can be considered to solve the problem. Ecological grain storage mode should be continuous drying in medium-sized cooperatives and centralized storage of warehouse rations in this area. Zone II is located in the Mid-eastern area of Jilin Province. Maybe due to the higher altitude, the region has higher air relative humidity, higher temperature, larger precipitation, minimum wind speed and shorter sunshine hour. This gra

关 键 词：粮食 贮藏 生态 聚类分析 湿热平衡模型 平衡水分 

分 类 号：S379[农业科学—农产品加工]