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。
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。
While at the family level, plantation forest was close to natural forest.
而科级水平的聚类反映出人工紫胶林和天然紫胶林更接近。
B: Ali Mountains is a famous natural forest park and a summer resort as well.
B：阿里山是著名的天然森林公园和旅游胜地。
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。
Comprehensively Organizing and Implementing the Natural Forest Protection Project.
全面组织实施天然林保护工程。
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。
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。
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。
The area percentage of natural forest is above 85%, and the percentage of plantation is about 15%.
天然林斑块的面积比例都在85%以上，人工林斑块面积比例都在15%左右。
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。
Forest resources. animal resources and other natural landscape and cultural damage and pollution.
森林资源。动物资源等自然景观和人文景观的损害和污染。
The volumes open up targeted to the natural space, the forest.
这个建筑的开发是针对自然空间以及森林。
The river formed a natural blockade to the spread of the forest fire .
那条河成了阻止森林大火蔓延的天然屏障。
Forest disease is a kind of natural phenomenon between living things in food chain.
森林“病害”是森林生态系统中生物之间食物链关系的一种自然现象。
Forest resource is the most important natural resource and material wealth of our country.
森林资源是国家最重要的自然资源，是国家富强、人民昌盛的重要物质财富。
The river formed a natural blockade to the spread of the forest fire.
那条河成了阻止森林大火蔓延的天然屏障。
Forest resources are extremely important natural resources.
森林资源是极其重要的自然资源。
The microorganism number under the natural spruce fir forest was bigger than the secondary.
天然云冷杉林的微生物总量大于次生云冷杉林；
Wetland is the most important natural resource except ocean and forest.
湿地是地球上除了森林、海洋之外最重要的生态系统。
A natural secondary forest zone spreads in the upstream of the reservoir.
库区上游分布有天然次生林带。
Investigation on natural secondery growth forest commulities in limestone mountain region of Shexian county;
本文以皖北地区的石灰岩山地为对象，对该地区的植被进行了调查和研究。
Investigation on natural secondery growth forest commulities in limestone mountain region of Shexian county;
本文以皖北地区的石灰岩山地为对象，对该地区的植被进行了调查和研究。
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