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巴西三叶橡胶树原产热带雨林,北移到我省高纬度高海拔地区种植已获成功,现初具生产规模,生势旺盛且产量较高。但因垦区地处热带北缘,越冬期间光照和热量欠佳,一些年份偶遇北方强冷空气入侵,使部份地区或地段的胶树遭受严重寒害。由于植胶区山峦叠嶂,沟壑纵横,地形复杂,山体结构多变,气象要素的再分配极为明显。特别是一九七三～七四和一九七五～七六年两次冷冬,不同小环境的胶树寒害差异显著,每
The native tropical rain forest of Clover Tree in Brazil has been successfully planted in the north of our province with high latitude and high altitude. Now it has the scale of production, strong vitality and high output. However, due to the fact that the reclamation area is located in the northern margin of the tropical tropics and has poor light and heat during wintering period, some strong cold air intruded into the north in some years, causing serious damage to the gum trees in some areas or areas. Due to the mountainous area of plastic planting area overlapping, gully aspect, terrain complex, changing mountain structure, the redistribution of meteorological elements is extremely obvious. In particular, from 1973 to 1984 and from 1975 to 1976, there were significant differences in chilling injury among different small environments