It is of importance and difficulty in the discipline of soil and water conservation to study the tree species selection and configuration patterns for soil and water conservation forest.
水土保持林树种选择及配置模式,一直是水土保持学科的研究重点和难点之一。
参考来源 - 重庆四面山水土保持林土壤—植物养分及生物多样性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
It has important significance to overall raise quality of campus landscape forms to scientifically carry on greening planning and tree species selection in main road and square.
科学进行干道和广场的绿化规划与树种选择，对全面提升校园景观质量具有重要的意义。
There is no landscape tree species planning in foreign countries. Instead, they compile tree selection guide handbook or tree character list to guide tree species selection and application.
国外没有类似我国城市树种规划类型的文件，他们通过制定城市树种选择指导手册或树种特性表等实现对城市树种选择和应用的指导。
Another value of the regularity was that the selection range of tree species of mixed forest will increase with the tree species' increasing in anti_pest forest which was designed or reformed.
上述规律的意义还在于，随混交林中树种数的增加，设计或改造现有感虫林时选择树种的余地也增大。
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