一、明确绿化苗木的作用
First, clear the role of green seedlings
绿化苗木主要分为行道树、花灌木、绿篱、草本花卉、草坪等几大类。实际的绿化中都会采用二到三种以上来进行全部的绿化。
Greening seedlings are mainly divided into street trees, flowering shrubs, hedgerows, herbaceous flowers, lawns and so on. In actual greening, two or more than three species will be used for all greening.
以公园为例，道路两旁会植以玉兰、银杏、黄金槐、红枫、香樟等乔木作为行道树，可观赏、可遮荫。行道树底下会植以、红叶石楠、金叶女贞、小叶黄杨等绿篱类苗木，用以把道路和花坛隔离开来。
Take the park as an example, planting trees such as magnolia, ginkgo, Huang Jinhuai, red maple and Cinnamomum camphora on both sides of the road can be seen as roadside trees, which can be seen and shaded. Roadside trees will be planted with hedgerow seedlings such as red leaf Shi Nan, Ligustrum lucidum, Euonymus japonicus and so on, to separate roads from flower beds.
花坛内可以种植各种花灌木，比如梅花、樱花、丛生紫荆等观花灌木，用以赏花之用。花坛里剩余的地被，则可以用红花草、鸢尾、葱兰等观花草本花卉覆盖，也可以植以麦冬草、四季草等草坪。
Flowers and shrubs can be planted in flower beds, such as plum blossoms, cherry blossoms and bushy Bauhinia and so on. The rest of the beds in the flower beds can be covered with flowers and plants such as red flowers, iris, green onion and so on.
二、尽量选用本地绿化苗木
Two. Choose the local greening seedlings as far as possible
本地苗圃对本地土壤和气候条件的适应性更强，选用本地绿化苗木还可避免绿化苗木的长途调运，能够保证绿化苗木随起随种，成活率会更高，同时还可避免将外地的病虫害带入本地。
The local nursery is more adaptable to the local soil and climate conditions. The selection of local greening seedlings can also avoid the long haul of green seedlings. It can guarantee the survival rate of the greening seedlings and the survival rate will be higher, at the same time, it can also avoid the local diseases and pests.
在盐碱地区绿化中，选择本地绿化苗木更为重要。如需外地购苗要尽量选择与本地气候、 土壤等绿化苗木生长环境条件差异不大的苗源地，或经实践证明能够保证在本地种植成活的苗源地的绿化苗木。
In the greening of saline alkali areas, it is more important to choose local green seedlings. If we need to buy the seedlings in the field, we should try to choose the plantlet where there is little difference between the local climate, the soil and other green seedlings, or the green seedlings that can be planted in the source of the live seedlings.
外地购苗因产地不同等原因，绿化苗木价格有时差异较大，但为了保证种植成活率，首先要保证绿化苗木的质量。
The price of greening seedlings is sometimes quite different due to the different producing areas. But in order to ensure the survival rate, the quality of green seedlings should be guaranteed first.
三、种植环境
Three. Planting environment
种植环境是苗木品种选择中最重要的一环，环境不适宜，苗木移栽不成活，则一切都是空白，像香樟，在寒冷地区是不能栽种的。所以苗木一定要选择适合土壤、气候环境的品种。
The planting environment is the most important part of the selection of the seedlings. The environment is not suitable, the seedling transplanting is not viable, and everything is blank, like the camphor, which can not be planted in the cold area. So seedlings must choose suitable varieties for soil and climate.
1、苗木选择要以适应气候环境为基础
1. The selection of seedlings should be based on the climate environment
以我国大部分温带地区为例，推荐使用的优良落叶树种，乔木类有无球悬铃木、马褂木、香槐、垂枝榆、金丝垂柳、缺萼枫香、南酸枣、黄玉兰、红运二乔玉兰、紫玉兰、黄山栾树、檫树等；
In most of the temperate regions of China, the excellent deciduous tree species are recommended. The tree species include ball - free camelywood, Liriodendron, ropgima, elm, calyx, calyx, Huang Yulan, red Yun, Yulan, Yulan, Mount Huangshan, sassafras and so on.
灌木类有花叶锦带、水麻、园艺八仙、海滨木槿、红花大叶醉鱼草等。
Shrubs include flowers, leaves, water, horticultural eight immortals, waterfront hibiscus, and safflower leaf.
耐寒常绿树种，乔木类有天竺桂、山杜英、深山含笑、乐昌含笑、阿丁枫、日香桂、沉水樟、猴樟等；
Cold resistant evergreen trees, such as Cinnamomum cassia, camphor, mountain Michelia, Lechang Michelia, Acer truncatum, Cinnamomum cassia, submerged Cinnamomum camphora, and Cinnamomum camphora.
灌木类有浓香茉莉、金边卵叶女贞、火焰南天竹、茂树、紫金木、孔雀柏等。
Shrubs include fragrant jasmine, Ligustrum lucidum, Ligustrum lucidum, flame Nantian bamboo, maoshu, Zijin wood, peacock cypress and so on.