昆虫和病原体是森林生态系统的固有成分,通常其密度相对较低,所造成的损害较小,对树木生长及其活力的影响微乎其微。
Insects and pathogens are integral components of forest ecosystems and normally are present at a relatively low density, causing little damage, and having negligible impact on tree growth and vigour.
气候变化正在加速造成对生态系统、农业生产力、森林和供水系统不可弥补的损害;
The irreparable damage that is being inflicted on ecosystems, agricultural productivity, forests and water systems is accelerating.
所有的农业都损害环境,包括你所能想到的一切——砍伐森林,垦荒草原,灌溉的水源,粪肥,拖拉机消耗的燃料,杀虫剂还有化肥等。
All agriculture damages the environment - think of all those felled forests and ploughed-up prairies, all the irrigation water, manure, tractor fuel, pesticides and fertiliser.
全球价格抬高是部分因素,而去年干旱和森林大火也损害作物。
Higher world prices are partly to blame. So are drought and wildfires last year which hurt crops.
伐木业损害了约70%残留的森林。
Around 70% of the remaining forest has been damaged by logging.
在过去150年里,干旱已经对森林和树胶产品造成了损害。
In the past 50 years, drought has taken a toll on the forests and on the production of gum.
森林资源。动物资源等自然景观和人文景观的损害和污染。
Forest resources. animal resources and other natural landscape and cultural damage and pollution.
火灾引起这岛屿森林的广泛损害。
回收性砍伐看起来似乎是个帮助森林从破坏性大火或者暴风雨中的损害中恢复的有效方法,但是事实上却会带来长期的环境损失。
Salvage logging may appear to be an effective way of helping forests recover after a destructive fire or storm, but it can actually result in serious loner-term environmental damage.
“人材”们也不愿为损害森林和渔业资源的公司工作,这也给公司施加了改变的压力。
"Talent" too does not want to work for firms that destroy forests or fisheries, so it has also put pressure on firms to change.
研究者把大部分损害归咎于农业和砍伐森林,但是农村地区不是流失土地的唯一地区,在城市里、矿场和工厂附近土地也受到影响。
The researchers blamed farming and the clearing of forests for much of the damage. Rural areas are not the only ones losing soil. Land is also being affected in cities and near mines and factories.
肯尼亚米达河红树林森林恢复状况:一个受损害的还是有保障的未来?
Regeneration Status of Mangrove Forests in Mida Creek, Kenya: A Compromised of Secured Future?
尼泊尔支持达成一项通过使该国的森林资源不受损害而保护气候的全球协议。
Nepal supports a global agreement to help protect the climate by leaving the country's forests intact.
尼泊尔支持达成一项通过使该国的森林资源不受损害而保护气候的全球协议。
Nepal supports a global agreement to help protect the climate by leaving the country's forests intact.
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