基于地理信息系统的闽东南柑橘避冻分区及防冻措施研究

通过对福建省66个气象台站的纬度、海拔高度、距海岸线距离等因子与福建省东南部10年1遇极端最低气温之间进行相关和回归分析,研究地理因子对极端最低气温的影响,模拟出极端最低气温在福建省东南部的分布状态,从而确定闽东南柑橘避冻的气候分区,并进一步分析对柑橘防冻的措施;结果表明地理信息系统能很好的模拟闽东南柑橘避冻的气候分区特征,该特征为由东南向西北柑橘气候区划由最适宜种植区逐渐过渡到可能种植区,模拟结果中不存在柑橘不适宜种植区,在闽东南区内,极端最低气温与纬度基本上呈线性相关。

Climate Section on the Orange in Southeast of Fujian Province Based on GIS and Analysis of Preventing Frostbite

By using the data of the latitudes, altitudes and the distances to coastline in the 66 weather stations, the correlation and regression analysis were done between those data and the lowest temperature that occurred once 10 years. The effects of geographical factors on the lowest temperature were studied, the distribution characteristics of the lowest temperature in the southeast of Fujian province were simulated, and thereby the climate freezing sections of orange were done. The countermeasures of avoiding freezing of orange were put forward also. The results showed that: the GIS that used to simulate the distribution characteristics of climate freezing sections of orange in the southeast of Fujian province were preferable. The distribution characteristics were that the freezing sections that were the most optimum planting section gradually became the possible ones from the southeast to the northwest, and the disagree ones did not exist; the lowest temperature was basically correlated to the latitudes in the regions.