三种园林灌木的抗寒性研究和景观配置初探

发布时间：2018-05-07 20:02

  本文选题：室外测定 + 景观配置　； 参考：《内蒙古农业大学》2015年硕士论文

【摘要】：本文通过对金叶榆(Ulmus pumila cv.Jinye)、金叶风箱果(Physocarpus opulifolium Llutein)、偃伏株木(Cornus stolonifera Michx.)三种园林植物的生态习性、形态特征,植物颜色、群落特征以及对小区整体景观的营造,总结出这三种园林植物景观配置的特点。进而研究呼和浩特住宅小区植物配置的多样性。同时,对这三种园林植物进行室外测定法,测定其植物枝茎的相对电导率等生理指标。对不同植物的抗寒性进行生理学评价：通过测定植物枝茎的可溶性糖含量与可溶性蛋白的含量,目的是研究渗透物质对不同植物在低温情况下的影响程度；通过测定超氧化物歧化酶,得出金属酶对植物抗寒性的影响。结果表明：1.室外试验测定法,利用自然温度不断下降,三种园林灌木的相对电导率、脯氨酸、丙二醛、可溶性糖、可溶性蛋白呈现升高趋势；而SOD呈现下降趋势。2.人工低温胁迫法,随着胁迫时间增加,金叶风箱果相对电导率、脯氨酸、丙二醛、可溶性糖、可溶性蛋白呈现升高趋势；而SOD呈先升高后下降。3.同一胁迫时间,随着温度不断下降,金叶风箱果相对电导率和可溶性糖呈上升趋势；丙二醛和可溶性蛋白呈先上升后下降,且分别在-35℃和-30℃达到最大。脯氨酸和SOD呈先上升后下降再上升再下降趋势,图中表示为“S”曲线,但是整体均高于对比试验值。4.三种园林植物耐修剪,色彩多种多样,广泛应用于绿篱、色块、色带、造型,’是乔、灌皆宜的彩叶树种,适合用于营造景观生态绿化中。
[Abstract]:In this paper, Ulmus pumila cv. Jinyea, Physocarpus opulifolium Llutein, Cornus stolonifera Michx. were studied. The ecological habits, morphological characteristics, plant color, community characteristics and the overall landscape construction of the three garden plants were summarized. Then the diversity of plant configuration in Hohhot residential district was studied. At the same time, the three kinds of garden plants were measured by outdoor method, and the physiological indexes such as relative electrical conductivity of their branches and stems were measured. The physiological evaluation of cold resistance of different plants was carried out. By measuring the content of soluble sugar and soluble protein in branches and stems of plants, the purpose of this study was to study the influence of osmotic substances on different plants at low temperature. By measuring superoxide dismutase (SOD), the effect of metalloenzyme on plant cold resistance was obtained. The result shows that 1: 1. In outdoor test, the relative conductivity, proline, malondialdehyde, soluble sugar and soluble protein of three garden shrubs showed an increasing trend, while SOD showed a decreasing trend. Under artificial low temperature stress, the relative conductivity, proline, malondialdehyde, soluble sugar and soluble protein increased with the increase of stress time, while SOD increased first and then decreased. At the same stress time, the relative electrical conductivity and soluble sugar increased with the decrease of temperature, while malondialdehyde and soluble protein increased first and then decreased, and reached the maximum at -35 鈩，

本文编号：1858273