1·But in general, for positive impact, forest management practices should mimic natural forest processes.
但一般而言，为了产生积极影响，森林管理做法应模仿自然森林过程。
2·Natural forest stand structure of Pinus tabulaeformis was studied.
对油松天然林的林分结构进行了研究。
3·Urban forest plan is different from natural forest plan and urban garden plan.
城市森林规划，不同于林区和天然森林规划，也不同于城市园林规划。
4·Comprehensively Organizing and Implementing the Natural Forest Protection Project.
全面组织实施天然林保护工程。
5·A secondary forest is a natural forest formed after the original forest was felled.
次生林就是经过砍伐后又长起来的天然林。
6·The general trend of the natural forest pattern is from amass type to uniform type.
天然林的演替格局一般趋势是从集聚分布趋于均匀分布。
7·Each of our towns are built along the water, and are surrounded by natural forest and wildlife.
我们的每一个城镇都建立沿水，并按照自然森林和野生动物包围。
8·The natural forest protection project had initiated, and input into forestry was further enlarged.
天然林资源保护工程开始启动， 林业投入进一步加大。
9·The research also do some empirical work take the natural forest protection project (NFPP) for instance.
研究以天然林资源保护工程为例，展开了实证分析。
10·In practice, this translated into expenditure on plantations, rather than the management of natural forest.
但实践中，大量的投入花在大面积的人工造林上，而不是对自然森林的管理。