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在昆明树木园和丽江指云寺以及丽江香格里拉大道,开展了云南乡土树种脉瓣卫矛的城市绿化适应性研究。其内容包括脉瓣卫矛的苗木培育及抗性试验,实生及嫁接苗的开花结果效应观测,林木的抗城市污染性能以及萌生能力的调查研究等内容。结果表明:疏松、肥沃的土壤利于脉瓣卫矛苗木的生长;1年生幼苗在-7℃低温下,生长良好,3年生苗木在42℃温室内,生长旺盛,其平均高达141.5?,平均地径1.83?,平均发枝数为8.99梢/枝;人工栽培的3年生实生苗及2年生嫁接苗的开花结果率分别为1.09%与36.46%,显现出具有较早的观赏性能;街道栽培的脉瓣卫矛叶片滞尘能力可达35.778 g.m-2,其叶片对重金属污染物的吸收总量为680.215 mg.kg-1。该树种表现出较强萌发能力和抗寒性及耐高温特性,对城市污染物具有较强的抗性和净化能力。
In Kunming Arboretum and Lijiang Jian Yun Temple and Lijiang Shangri-La Road, carried out Yunnan native tree species Euonymus City green adaptability study. The contents include seedling cultivation and resistance test of Euonymus fortunei, observation of the fruiting and grafting seedling flowering effect, investigation of anti-urban pollution of forest trees and germination ability. The results showed that: Loose and fertile soil was beneficial to the growth of A. robusta seedlings. The one-year-old seedlings grew well under the low temperature of -7 ℃. The three-year-old seedlings grew vigorously in the greenhouse at 42 ℃ with an average of 141.5% Diameter of 1.83?, The average number of branches for the 8.99 shoot / branch; artificial cultivation of 3-year-old seedlings and 2-year-old grafted seedlings flowering rates were 1.09% and 36.46%, showing the early ornamental performance; The dust retention capacity of Euonymus fortunei leaves reached 35.778 gm-2, and the total amount of heavy metal pollutants absorbed by its leaves was 680.215 mg.kg-1. The species showed strong germination ability and resistance to cold and high temperature characteristics of urban pollutants have strong resistance and purification capabilities.