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一、试验概况直干桉(Evcalyptus maideni)原产澳大利亚,1966年由昆明引种至保山。为探索直干桉在本地区山地条件下实现速生丰产的技术措施,大面积营造速生丰产林打下一定基础,逐步解决我区用材及生活能源短缺的问题。试验地设在保山市城郊的太保山本所及保山市羊邑镇。太保山试验区坡地海拔1780米,羊邑镇试验区坡地海拔1650米。东经98°44′,北纬24°46′。年平均气温15.5℃,最高温32.2℃,最低温—3～5℃,日照2368小时。年降雨量960毫米,年蒸发量1200毫米,年相对
First, the test profile Straight dry eucalyptus (Evcalyptus maideni) native to Australia, introduced in 1966 from Kunming to Baoshan. To explore the direct eucalyptus in the mountainous areas to achieve fast-growing and high yield technical measures to create large-scale fast-growing high yield forest to lay a solid foundation to gradually solve the problem of timber and living energy shortage in our area. Experimentally located in the suburbs of Baoshan City, Taibao Yamamoto and Yang Town, Baoshan City. The test area of Taibao Mountain is 1,780 meters above sea level and the elevation of the slope in the test area of Yangyi Town is 1650 meters. Longitude 98 ° 44 ’east, latitude 24 ° 46’ north. The annual average temperature of 15.5 ℃, the highest temperature of 32.2 ℃, the lowest temperature -3 ~ 5 ℃, sunshine 2368 hours. Annual rainfall of 960 mm, the annual evaporation 1200 mm, year relative