基于GIS的储粮区划的研究

发布时间：2018-04-21 02:14

  本文选题：区域划分 + 粮食湿热平衡模型　； 参考：《吉林农业大学》2015年硕士论文

【摘要】：粮食的安全存储一直是粮食行业的重要环节。东北是我国产粮大区,每年由于储粮方法不当,造成大量的粮食损失。如果粮食储藏不考虑气候因素和外在大气条件,必然导致粮食发霉变质。因此,要根据东北不同地区的自然气候条件,因地制宜,研究并推广应用合理的储粮技术,进而完善粮食储藏区域划分的方案。结合目前粮食储藏技术的发展,参照国内外粮食储藏区域划分的方法,对粮食储藏地理区域划分指标进行了重点研究。利用GIS技术、数理统计分析等方法,对吉林省和整个东北地区(包括黑龙江省、吉林省、辽宁省和内蒙古东部地区)进行了储粮区划研究,并对各储粮区域的适宜性进行了分析与评价,为吉林省安全储粮、经济储粮提供科学的参考依据,为储粮区划研究提供有效的方法。本文主要的研究内容如下:1、综合考虑影响粮食储藏的地理特征与气候因素,以国家气象局公开发表的东北地区各个气象观测站在2001~2012年间所观测到的每个月份的气象数据(空气相对湿度、平均温度、日照时数、风速、降水量)为参考依据,以粮食湿热平衡模型计算出来的平衡水分为研究对象,对数据进行整理和修正,以确保研究的数据分布均匀,避免数据丢失。2、分析气候条件变化与粮食的安全储藏之间的密切关系,探索影响粮食安全储藏的气候关键因素。选取合理的粮食储藏地理区划指标,分析并参考前人的研究成果,结合东北地区的实际情况,确定以≥15℃期间的粮食平均平衡水分为粮食储藏区域划分的主要指标。首先,将吉林省粮食储藏区域划分为3个区域,分别是中西部平原区、中东部半山区和东部山区。然后,进行了东北地区的储粮区划研究,将东北地区划分为4个大的储粮区域。又根据各区域的地形和温度差异情况,选取年平均温度为区划辅助指标,对其中的三个区域进行了二级划分。最后,将东北地区划分为7个小储粮区域,分别是赤峰-通辽丘陵区、内蒙古高原区、松嫩平原区、环渤海湾沿海区、三江平原区、小兴安岭山脉区、长白山脉区。3、借助地理信息系统的平台,制作粮食储藏地理区划专题图。根据确定的粮食储藏地理区划等级指标,利用GIS技术,实现对农业气候资源的可视化和粮食储藏地理专题区划。4、分析了各储粮区域各自的气候特征,为各储粮区域采用适宜的粮食储藏方法提出合理性的建议。
[Abstract]:The safe storage of grain has always been an important link in grain industry. Northeast China is a grain producing region, which causes a large amount of grain loss every year due to improper methods of grain storage. If grain storage does not consider climatic factors and external atmospheric conditions, it will inevitably lead to mildew and deterioration of grain. Therefore, according to the natural climate conditions in different regions of Northeast China, we should study and popularize the reasonable grain storage technology and perfect the plan of dividing the grain storage area according to the local conditions. Combined with the development of grain storage technology at present and referring to the method of dividing grain storage area at home and abroad, the paper makes a key research on the geographical division index of grain storage. Using GIS technology and mathematical statistical analysis methods, the regionalization of grain storage in Jilin Province and the whole Northeast region (including Heilongjiang Province, Jilin Province, Liaoning Province and Eastern Inner Mongolia) was studied. The suitability of each grain storage area is analyzed and evaluated in order to provide a scientific reference for the safe and economical storage of grain in Jilin Province and an effective method for the study of grain storage regionalization. The main research contents of this paper are as follows: 1. The geographical characteristics and climatic factors affecting grain storage are considered comprehensively. Based on the meteorological data (air relative humidity, mean temperature, sunshine hours, wind speed, precipitation) for each month (air relative humidity, average temperature, sunshine hours, wind speed, precipitation), which were observed by various meteorological observation stations in the Northeast region during the period of 2001 to 2012, which were publicly published by the National Meteorological Administration, The equilibrium water calculated from the model of moisture and heat balance of grain is divided into study objects, and the data are collated and revised to ensure the uniform distribution of the data. To avoid data loss. 2, to analyze the close relationship between climate change and grain security storage, and to explore the key climatic factors that affect food security storage. Selecting reasonable grain storage geographical regionalization indexes, analyzing and referring to the previous research results, combining with the actual situation in Northeast China, it is determined that the main indexes of grain storage area division can be divided into grain average equilibrium water in the period of 鈮，

本文编号：1780480