关键词: 甜高粱, 甜高粱, 倒伏系数, 聚类分析, 遗传多样性

Abstract: Aiming at the characteristics of climate resources and forest growth, 12 meteorological factors were chosen as the elements of forestry climate resources’evaluation index system, then the authors established an evaluation model of forestry climate resources and specifically analyzed the spatio- temporal change characteristics of the individual and comprehensive climate resources from 1961 to 2013. The results showed that: the radiation resources exhibited an obvious decreasing trend from the time scale, the abrupt change occurred in 1983 and the periodic oscillation was 11 years; on the contrary, the heat resources exhibited an obvious increasing trend, the abrupt change occurred in 1986 and the periodic oscillation was 23 years; the water resources showed a weak increasing trend and did not have any abrupt change and periodic oscillation; the comprehensive climate resources showed an obvious increasing trend, the abrupt change occurred in 1985 and did not have any periodic oscillations. From the space scale, most of the radiation resources were mainly located in the eastern mountainous region and the areas around the Xiaoxing’an mountains; the heat resources were mainly located in the eastern mountainous region and the eastern area of Xiaoxing’an mountains; the water resources were mainly located in the west of the eastern mountainous region and Xiaoxing’an mountains; the comprehensive resources were mainly located in the west of the eastern mountainous region, and then in the middle and southern area of Xiaoxing’an mountains. The results could provide some scientific reference for forestry department and local government to deal with climate change and utilize climate resources reasonably.