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- Machilus pauhoil is a good evergreen broad-leave tree species with wide uses.It has a high ornamental value so that it is also a garden afforestation tree species. 刨花楠是一具有广泛用途的优良常绿阔叶树种,也是一种园林绿化树种,观赏价值很高。
- introducing afforestation tree species 引种树种
- Using the theory of SPAC and the method of control experiment, the biology and growth behavor of young trees of the main afforestation tree species under different water conditons were studied. 基于水分因子是反映黄土高原不同造林立地类型宜林性，以及影响林木生长的主导环境因子这一观点，运用SPAC理论，通过控制试验，研究主要造林树种幼树在不同水分梯度下的生理及外观反应。
- Moreover, some effective measures for decreasing the occurrence of pest and disease on street afforestation trees are put forward in terms of the improvement of soil properties. 从改善街路土壤性质入手，提出了相应的减少街路绿化树木病虫害发生的有效措施。
- urban afforestation tree species 城市绿化树种
- To afforest trees and to build terraced fields are also essential for controlling soil erosion. 坚持植树造林，修筑梯田控制水土流失。
- Result shows that the main reason for serious occurrence of pest and disease on street afforestation trees is the deteriorating of the physic-chemical and biological properties of soil. 结果表明：土壤物理、化学、生物学性质的恶化是长春市街路树木病虫害严重发生的主要原因。
- Be going to treasure flowers and plants trees , not to destroy urban afforestation , participate in and the activity afforesting tree planting actively. 要爱护花草树木，不破坏城市绿化，并且积极参加绿化植树活动。
- As the car hit the tree he was snot out. 汽车扭在村上，他被猛地摔了出来。
- The bird sang high and clearly in the tree. 鸟儿在树上清脆地高歌。
- The annular markings on a tree indicate its age. 树的环形纹理显示其年龄。
- The car hit the tree with a sickening crash. 那辆汽车撞在树上发出让人难受的撞击声。
- An arrow whizzed past and stuck in a tree. 一支箭“飕”地一声飞过去，钉在一棵树上。
- The squirrel ran up a tree and got out of my reach. 松鼠跑到树上去了，我逮不着。
- The workers saw off a limb from the tree. 工人从树上锯下了一根大树枝。
- He is not made for climbing the tree of knowledge. 他不是生来适于攀登知识之树的。
- He tethered his horse to a tree. 他用绳子把马拴在树上。
- The ivy twined round the oak tree. 长春藤盘绕着橡树。
- The results contributed to the vertical placement of afforesting trees and the applying of the afforesting practice. 这对造林树种的垂直布局和造林抚育措施的实施有一定的指导意义。
- Can use at trade tree and curtilage afforest. 可用于行道树及庭园绿化。
