梓树已在大庆开花结果王淑清（大庆第三医院绿化办）城市绿化重在美化，因而在选择绿化树种上，不但要考虑它的适应性和速生性，还应考虑它的观赏价值和抗逆性能。目前我市绿化骨干树种主要以杨、柳、糖为主，辅助树种也比较单一。１９８７年我们从沈阳市引入梓树小苗试种... Catalpa has blossomed in Daqing Wang Shuqing (Daqing Third Hospital Afforestation Office) urban landscaping focuses on beautification, and thus in the choice of afforestation species, not only to consider its adaptability and fast-growing, but also consider its ornamental value and resistance performance. At present, the main afforested tree species in our city are mainly poplar, willow and sugar, while the auxiliary tree species are relatively simple. In 1987, we introduced Catalpa seedlings from Shenyang City to try ...