The physical and mechanical properties of middle cutting wood of Cunninghamia lanceolata are inferior to those from natural forests.
杉木中伐材的物理力学性能不如天然林中伐材。
To mitigate it, natural forests must be conserved.
为减小其影响，天然森林就必须得到保护。
Natural forests still exist in parts of Europe.
第三段：制定保护欧洲森林的政策迫在眉睫。
Years of deforestation have eradicated most of Haiti's natural forests.
多年来的森林砍伐，导致大部分海地的自然森林都消失了。
But artificial forests have larger NPP than natural forests except those in tropical zone.
除热带林外，人工林的净第一性生产力大于天然林净第一性生产力。
Second, the state should enhance protection and development of natural forests by launching more afforestation projects.
第二，应该通过开展更多的植树造林工程②来提高天然森林的保护和开发。
The litters of coniferous trees accounted for 90% in artificial forests, but litters of broadleaf trees were 40% in natural forests.
人工林中针叶树的枯落物占90%以上，而天然林中阔叶树的枯落物占40%。
As a result, the destruction of Haiti's natural forests is almost total, making the Caribbean country one of the most deforested in the world.
结果是，海地的自然森林几乎全部被毁，使得这个加勒比国家成为世界上森林缺失最严重的国家之一。
The factors influencing bat's food are:destruction and decrease of natural forests', change of plant cultivation and use of pesticide, etc.
影响翼手类食物的主要因素有：自然植被的破坏和减少、植物栽培种类变化和农药的使用等。
So these natural forests, if we allow them, still have an enormous contribution to make to helping Australia address the climate change problem.
所以这些天然森林如果我们愿意，它们还可以有很大的贡献，帮助澳洲处理气候变迁的问题。
China is a forest deficit nation. The main natural forests have been greatly decreased, timber stocks have dropped, the quality of forests has declined.
中国是一个森林赤字国家。主要天然林大量减少，木材存量下降，森林质量恶化。
Based on the synthetical assessing values and the conservation standards for natural forests, the sub compartments were divided into 4 conservation gradings.
根据小班资源的综合评价，并结合天然林保护的基本准则，将帽儿山天然次生林小班划分为4个保育等级。
The NFCP, launched in 1997 following serious droughts, aims to conserve natural forests through logging bans and afforestation with incentives to forest enterprises.
NFCP是在1997年的严重干旱后启动的，目的是通过禁止采伐和激励林业企业造林来保护自然森林。
Compared to natural forests, plantation grew fast, yielded well, developed conveniently, gained efficiency early and the timber size and quality are more stable.
与天然林相比，人工林具有生长快、生产量高、开发方便和获得效益早、木材规格及质量较稳定等特点。
And China has also, for the past decade, been implementing a Natural Forests Protection Programme (NFPP) to look after older woodland by such actions as stopping logging.
同时，在过去十年，中国也采取了一项叫做“自然森林保护项目”的工程去保护原有的林地，所采取的措施包括禁止森林砍伐等。
It also plans to restore natural forests, grasslands and other key habitats in the upper and middle reaches of the Yangtze to reduce soil erosion and soil sweeping into the river.
它还打算规复长江中、上游的天然丛林、草原和其他首要生境，以镌汰泥土流失和流入长江的土壤。
Nissan's hybrid FUGA car is already using the 'Forest AC' air conditioning system which is designed to recreate 'the refreshing breezes, temperature, humidity and aroma of natural forests'.
日产混合动力风雅（FUGA）汽车已经配备了‘森林交流’（Forest AC）空气调节系统，其设计目的是在车内模拟自然森林的清新微风、温度、湿度和气味。
Vector competence of reservoir hosts and value of natural foci from protected natural forests area were also remarkably higher than those areas of semi-protected nursery forests and farmland.
媒介昆虫和宿主动物潜能及自然疫源地活力也显著高于苗圃林半保护区和农业开垦区；
Forests are one of the main elements of our natural heritage.
森林是我们自然遗产的主要组成部分之一。
Back then, their lifes depended on the natural resources of the forests, especially the birch tree.
那时，他们的生活依赖于森林的自然资源，尤其是桦树。
The myth of the "natural" forest has survived, yet there are effectively no remaining "primary" forests in Europe.
“天然”森林的神话一直存在，但实际上在欧洲没有现存的“原始”森林。
The Aichi targets call for a significant reduction in the rate of loss, degradation and fragmentation of all natural habitats, including forests, by 2020.
爱知目标要求到2020年大幅度降低包括森林在内的所有自然生境的丧失、退化和条块分割速度。
Unchecked, it has the potential to impact nearly every aspect of human infrastructure and our natural environment—from our cities and roads to our forests and fields.
黑霍说，“不加阻止的话，它有可能影响到人类社会和自然环境的几乎方方面面——从我们的城市、道路直到森林和农田。”
The survey will substantially improve knowledge on land use change including deforestation, reforestation and natural expansion of forests.
调查将显著改善有关土地利用变化，包括森林砍伐、重新造林和森林自然扩展等方面的知识。
Unsustainable use of land and forests, meanwhile, threatens to deplete Cambodia's natural assets upon which a good portion of growth is based.
与此同时，不可持续的土地和森林利用模式有可能侵蚀柬埔寨赖以取得其大部分增长的自然资源基础。
Professor Dunn believes we should convince our bodies they are still in the natural state of our ancestors: roaming bug-infested forests and living in unsanitary hovels.
邓恩博士认为，我们仍然应该让自己的身体处于天然状态，正如我们的祖先一样，他们在虫子遍地的森林里漫步，在卫生状况不佳的棚舍里生活。
Professor Dunn believes we should convince our bodies they are still in the natural state of our ancestors: roaming bug-infested forests and living in unsanitary hovels.
邓恩博士认为，我们仍然应该让自己的身体处于天然状态，正如我们的祖先一样，他们在虫子遍地的森林里漫步，在卫生状况不佳的棚舍里生活。
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