呼和浩特市清水河县银贡山公园观叶树木引种适应性评价

发布时间：2018-05-18 06:29

本文选题：观叶树种 + 引种树种　；参考：《内蒙古农业大学》2017年硕士论文

【摘要】：城市园林绿化水平越来越成为体现一个城市现代化的重要标志,随着社会以及人类需求的进一步提高,丰富园林绿化植物物种,引入更多园林绿化树种成为必然趋势。本文针对呼和浩特市清水河县银贡山公园引进的8种观叶树种:银杏、火炬树、紫叶樱、白蜡、紫叶碧桃、紫叶黄栌、五角枫和金枝柳,通过全面调查与抽样调查以及物候观测相结合的方法,以生长发育状况(树高生长势和是否能正常开花结果)、观赏性(花、果、叶和树形)和抗逆性(保存率、冻害率和病虫害率)三个方面9项内容作为适应性评价指标,通过定性分析与定量分析相结合的方法建立合理科学的综合评价体系对引进树种进行适应性评价。首先对各指标因子适应状况进行调查分析;接下来根据所制定的各指标因子的评价标准,将评价等级分为优、良、差三等,并分别赋予分值,得出单一指标因子的适应程度;最终根据不同指标因子在适应性中影响力的大小确定每一指标因子所占权重,采用综合指数法进行适应性综合评价。结果表明:在研究调查的8种树种中,适应的树种有紫叶樱和白蜡;较适应的树种有紫叶碧桃和金枝柳;不适应的树种有:银杏、火炬树、紫叶黄栌和五角枫。
[Abstract]:The level of urban landscape greening has become an important symbol of the modernization of a city. With the further improvement of the social and human needs, it has become an inevitable trend to enrich the plant species of garden greening and to introduce more tree species for landscaping. In this paper, eight leaf-watching trees were introduced from Yingong Mountain Park, Qingshuihe County, Hohhot City: ginkgo, Torchia, Purple Leaf Cherry, White Wax, Purple Leaf Peach, Purple Leaf Cotinus, Acer pentagonal and Willow. By means of comprehensive investigation, sampling survey and phenological observation, the growth and development of trees (tree height growth potential and normal flowering and fruiting ability), ornamental (flowers, fruits, leaves and trees) and resistance to stress (preservation rate) were studied. As an index of adaptability evaluation, a reasonable and scientific comprehensive evaluation system was established by combining qualitative analysis with quantitative analysis to evaluate the adaptability of imported tree species. Firstly, the adaptability of each index factor is investigated and analyzed. Then according to the evaluation criteria of each index factor, the evaluation grade is divided into three grades: excellent, good and poor, and the adaptive degree of single index factor is obtained. Finally, the weight of each index factor is determined according to the influence of different index factors in adaptability, and the comprehensive evaluation of adaptability is carried out by comprehensive index method. The results showed that, among the 8 species investigated, the suitable species were purple leaf cherry and white wax, the more suitable tree species were Violet peaches and willows, and the unsuitable species were ginkgo, Torchia, Cotinus coggygria and Acer quinquefolium.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S687

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