东北连翘界线温度的确定.docx

编号（学号）：毕业论文（设计）（届本科）题目：东北连翘界线温度的确定学院：专业：姓名：指导教师：完成日期：年月日注：[封面的毕业论文（设计）编号统一填写学号]摘要植物的生长与自然界各种环境因素息息相关，而温度是其中一项重要内容，植物在不同的生长周期对于温度的要求各有不同，温度对植物生长的影响很大，目前由于全球气候变暖，大部分的植物不能适应如今的温度变化而濒临灭绝，所以对于植物生长的温度研究至关重要，能够通过对个别稀有植物的温度研究，提前进行人为温度的改变调整，提高植物的存活率，避免植物在如今的生态环境下导致的植物灭绝。本文中选择了辽宁地区的连翘植物作为论文重点的研究对象，基于大气科学研究理论，采用对连翘生长的界线温度和积温的温度研究方法，结合实际调查的方式对东北连翘在植物生长的不同时期的界线温度进行研究分析，通过对东北连翘植物的生长温度进行记录分析，计算连翘的界线温度，从而达到研究植物的生长环境与温度的直接关系的目的，为连翘的种植研究提供理论依据。关键词：东北连翘；界线温度；积温；物候期AbstractGrowth is closely related to various environmental factors and the nature of plants, and the temperature is one of the important contents of plant growth in different periods have different requirements for temperature, temperature has great influence on the growth of plants, at present because of global warming, most plants can not adapt to the change of temperature and is now on the verge of extinction, so the temperature of is essential for plant growth, can through the research on the temperature of individual rare plants, early artificial temperature changes, improve the survival rate of plants, avoid plants resulted in ecological environment now under the extinction of plants.This paper chose Liaoning Forsythia plants as the research object the paper, based on the theory of atmospheric science research, the research method of Forsythia growth temperature boundary temperature and accumulated temperature, combined with the actual survey of Forsythia mandschurica research conducted in plant growth in different periods of boundary temperature, are recorded through the analysis on the growth temperature northeast Forsythia plants, line calculation of Forsythia temperature, the direct relationship between the growth environment and the temperature of plants so as to achieve the purpose, to provide a theoretical basis for the study on planting of forsythia.Key words: Forsythia suspense in Northeast China; boundary temperature; accumulated temperature; phenology引言温度作为影响植物生长的重要因素之一，在植物生长过程中起到至关重要的作用，在植物生长的不同生命周期内，对于温度的要