论文部分内容阅读
山东位于北纬24°25′—28°23′,东经114°36′—122°43′,地处黄海之滨,属暖温带季风气候。一月平均温度-1.1—-8.0℃,极端低温-16—-29℃,年降水量650—950毫米。省内的经济竹类有毛竹(phyllostachys pubescens)、淡竹(ph.glauca)、刚竹(ph.viridis)及桂竹(ph.bambusoides)等;栽植面积约20,000亩,其中毛竹近3,000亩,主要栽植于鲁东、东南沿海及鲁中南山区。山东有计划的引种毛竹起始于1959年。在开始引种时,出现枝下高降低、尖削度增大、节间缩短等不正常的现象。经过3—5年的驯化锻炼和抚育管理,毛竹不仅长势良好蔚然成林,
Located at latitude 24 ° 25’-28 ° 23 ’and longitude 114 ° 36’-122 ° 43’E, Shandong is located in the Yellow Sea and enjoys a warm temperate monsoon climate. January average temperature -1.1--8.0 ℃, extreme low temperature -16-29 ℃, annual precipitation 650-950 mm. The economic bamboo species in the province are phyllostachys pubescens, ph.glauca, ph.viridis and ph.bambusoides etc; the planting area is about 20,000 mu, of which, there are nearly 3,000 mu of bamboo, the main planting In Ludong, the southeast coast and the mountains in central and southern Lu. Shandong’s planned introduction of bamboo began in 1959. At the beginning of introduction, the emergence of high branches lower, sharp taper increases, internodes shortening and other abnormal phenomenon. After 3 to 5 years of acclimatization and tending and management, not only does bamboo grow well,