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一、引种地区的自然环境条件1964年春,我国自阿尔巴尼亚引入大量油橄榄苗木,分别在各地进行试种,柳州三门江林场即其中重点引种区之一。引种园选在柳州(北纬24°28′,东经109°22′)市郊离城8公里处。年平均温度为20.1℃,一月份平均温庞9.8℃,绝对最低温度-5.8℃,年降水量1,489毫米,多集中在5—8月,占全年雨量68%,全年雨日152天。日照总数1,547小时。从温度和降水情况来看,基本上能满足油橄榄的需要,日照时数充足,唯冬季低温接近花芽分化所要求的临界条件,花期雨水
First, the introduction of natural environmental conditions in the region In the spring of 1964, China imported a large number of olive seedlings from Albania, respectively, in different places for trial planting, Liuzhou Sanmenjiang Forest Farm is one of the key introduction areas. The introduction garden is located in the outskirts of Liuzhou (latitude 24 ° 28 ’, longitude 109 ° 22’) 8 km away from the city. The annual average temperature is 20.1 ℃. The average temperature in January is 9.8 ℃, the absolute minimum temperature is -5.8 ℃ and the annual precipitation is 1,489 mm. It is mostly concentrated in May-August, accounting for 68% of annual rainfall and 152 days of rainy year. The total number of sunshine 1,547 hours. Temperature and precipitation from the point of view, basically to meet the needs of olive, adequate sunshine hours, only the winter temperature approaching the critical conditions required for flower bud differentiation, flowering