1、学号 ： 0829024026 本科生毕业论文（设计） 外文翻译 题目 ： City greening projects the tree tansplant technology 院 （系） Agriculture and life sciences 专 业 班 级 Landscape agricluture 学 生 姓 名 Shang Zhongwen 指导教师 （职称） Xu Yani（ Senior Engineer） 提 交 时 间 May 2012 1 City greening projects the tree tansplant technology Zhao Hongmei
2、 （ The ningxia hui autonomous region persons plan forestry workstations, Ningxia lund， 756300） Abstract The tree transplantation is urban landscape project of the key technology link. From the tree before transplantation of preparation and transplantation of tree planting, dig and after transplantat
3、ion for maintenance and management of links such as tree transfer technique is introduced, and thought that urban greening trees transplantation to provide the reference . Key words City green The tree Transfer technique With the development of social economy, the tree transplantation has become a c
4、ity green, the United States indispensable means and measures. Urban and rural afforestation trees planted in the method of commonly used to adorn district scenic spots, and enhance the afforestation effect. The tree transplant requires investment more human, mechanical equipment and capital, it is
5、a high technology content of the project. Now the transplanted technology are presented here. 1.The tree is the preparation for transplantation 1.1 The tree transplanted before processing Trees selected to transplant in the north trunk with paint to make obvious mark, in order to determine the trees
6、 Yin and Yang noodles. Determine the transplant seedlings before transplantation in according to the specific conditions have clip, such as cutting, eliminate technology processing, bare root transplant generally take heavy clip, to cut the branches 1/3 to 1/2. Take the ball can be appropriate light
7、 transplant cut, cut to a third of branch can. Cut cut when mouths must be smooth, section narrow as far as possible, clip 2cm thick above branches. Evergreen trees before transplantation generally does not need clip, evergreen trees while pruning should stay 1 2cm some wood, and may not stick root
8、cut. Cut the mouth should daub preservatives or paint, or in plastic wrap, in case of diseases and pests violations and decay. 1.2 Plant hole to prepare and soil treatment According to the specifications of the hole of planting the trees planted the size of a soil to decide, than the big tree roots
9、picture should be big tuo soil or 60 80 cm, 2 deep 20 30 cm, the pit wall shall be smooth vertical, pit is dug well bottom backfilling 20 30 cm. Plant soil to choose the water and fertilizer, gas and heat condition good soil. General use sand mix loess (2:1) as transplanting the soil after they colo
10、nize is good, one is the roots and affinity. In the big tree planting, sediment mix loess easy and paste it roots； 2 it is the atmosphere is good, can increase the temperature, promote the sprout of root system； Three is drainage performance is good. The rainy season can quickly row off excess water
11、, water during the dry season can absorb quickly, spread. 2. Transplantation of mining and planting trees 2.1 Trees transplant time The tree in the trees to transplant dormant, spring and autumn season 2 all can, to the spring tree before flow is the best. In the north of China for late march and Ap
12、ril occurrence peak, this time the trees also in dormancy, tree SAP has not flow, the best season for transplantation trees. 2.2 Transplant tree mining Mining bare root seedlings, the first to ensure the seedling root less damaged. Bare root mining is applicable to survive easily, diameter at breast
13、 height 10 to 20 centimeters of deciduous trees, a range of root on the root distribution and decide, for the average DBH of 8 10 times, and along the root of dig under the vertical to see root shall prevail, general deep 80 120 cm. Mining process, root in thick with sawn cut, in order to avoid spli
14、tting the roots. When the lateral root all after digging, knocking down and cut off the tree root, try not to root damage skin and they 3. For green trees and not easy to survive deciduous trees, transplanting must take the ball, soil ball diameter of the trunk DBH 7 to 10 times or so, the ball can
15、be in good soil, level off. The whole earth up to the big lump under small cone, soil with grass ball curtain or grass to MiMi bound tightly to prevent soil ball broken apart. Crane crane seedlings, wire rope and soil surfaces in 3 cm thick ball placed pieces of wood, in order to prevent the soil fo
16、r local stress ball and too loose. If some of the tree root is sandy loam soil, cant use grass bound bundles, need large wooden boxes (DaZhu basket) device, make the ball is not easy to spread out, in order to transport. 2.3 Tree transportation In the transport of the tree to prevent the tree branch
17、es fold the injury, the tree had to put on the grass curtain or use grass on the trunk tie up more than a few laps, in case in the course of carriage blow grind bark. When necessary to support the transporter. 2.4 Plant requirements When planting choose good main viewing direction, and take into account face of Yin and Yang, such as trees bend should try to beat. According to the nursery stock
