论文部分内容阅读
公路绿化植苗造林又称植树造林,它是公路绿化中最主要的一种造林方法。植苗造林具有种子发育完全而匀称的根系和稳定的抗御自然灾害的能力,栽植后容易成活;幼林期苗木生长快,容易成林,是造林方法中应用最广而可靠的一种方法。植苗造林苗木成活的关键在于保持苗木体内的水分平衡。即维持地上部分蒸腾蒸发水分与根系吸收水分两者之间的供需均势。如果供应多于消耗,苗木就可以成活;反之,苗木的缓苗期就会拉长,甚至造成死亡。所以植苗造林时,维持苗木水分平衡是
Road afforestation Planting and afforestation, also known as afforestation, afforestation method is the main road afforestation. Planting and seedling afforestation has complete and symmetrical root development of seeds and stable capability of resisting natural disasters, which is easy to survive after planting. Young seedling grows fast and becomes easy to become a forest, which is the most widely used and reliable method in afforestation. Planting seedlings The key to survival of seedlings is to maintain the water balance in nursery stock. That is, to maintain the above-ground transpiration and evaporation of moisture absorbed by the root between the two supply and demand balance. If the supply is more than consumption, seedlings can survive; on the contrary, seedling seedlings will lengthen the hibernation period, and even cause death. Therefore, seedling afforestation, to maintain seedling moisture balance is