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东大山自然保护区,位于东经100°45′～100°51′,北纬39°00′～39°04′之间。因受高山寒冷气候和大陆性荒漠气候的影响,树木种类不多,森林类型单纯,层次结构简单,与其它林区针叶林类型相比有很大差异。主要为天然青海云杉林(Form picea crassifolia)。该区森林过去尚未有人作过详细系统的调查研究。遂乘1986年我校承担张掖市东大山自然保护区总体规划任务,利用学生生产实习搞规划的机会,对该区植物群落、生境条件、主要林
East Dashan Nature Reserve is located between 100 ° 45 ’~ 100 ° 51’ east longitude and 39 ° 00 ’~ 39 ° 04’ north latitude. Due to the influence of alpine cold climate and continental desert climate, there are not many species of trees, simple types of forests and simple hierarchical structures, which are quite different from other coniferous forest types. Mainly natural Qinghai spruce forest (Form picea crassifolia). In the past, no detailed and systematic investigation of the area’s forests has been conducted. In 1986, our school assumed the overall planning task of Dongda Mountain Nature Reserve in Zhangye City, making use of the opportunity of students’ production internships to carry out planning. In this area, the plant communities, habitat conditions, major forests