IMAGINE a small group of farmers tending a rice paddy some 5,000 years ago in eastern Asia or sowing seeds in a freshly cleared forest in Europe a couple of thousand years before that.
试想一下,5000年前的东亚一群农民在耕种稻谷或是在更早几千年前的欧洲一片刚开垦的森林里播种的情景。
The present and features of the safety control on site in cutting areas on state owned forest farms and tending farms are presented, with the specific safety controls given.
本文论述了当前国有林场、采育场木材生产伐区现场安全管理的现状和特点,提出了伐区现场安全管理的内容与措施。
In the paper the sequence of forest tending operations in black locust stands is proposed, based on results of long-term stand structure and forest yield trials.
本文根据林分结构和森林产量长期实验林的研究成果,提出了刺槐林的抚育作业次序。
This paper states that forest tending and low yield forest rebuilding is the effective approach of resuming forest ecology system.
本文着重论述了加强森林抚育低效林改造是恢复森林生态系统的有效途径及其可行性和必要性。
Therefore, appropriate stand tending measures should be taken to improve the forest structures of timber forest, so as to gain the optimum economic benefits.
必须加强用材林林分抚育使其达到合理的林分结构以使其经济效益最大化。
Wildlife is one of the key components of forest. Forest structure can be modified by forest tending, which can affect the species richness and abundance of wildlife in forest stand.
野生动物是森林的重要组成部分之一,森林抚育会引起森林结构的变化,而森林结构决定森林野生动物的种类、数量和分布。
Forest structure can be modified by forest tending, which can affect the species richness and abundance of wildlife in forest stand.
野生动物是森林的重要组成部分之一,森林抚育会引起森林结构的变化,而森林结构决定森林野生动物的种类、数量和分布。
This paper reports the result of experiments of tending ways for Sapium sebiferum forest.
本文报告对乌桕林抚育方式试验结果。
This paper reports the result of experiments of tending ways for Sapium sebiferum forest.
本文报告对乌桕林抚育方式试验结果。
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