课程包括植物生理学、生物化学、除虫剂使用规章、森林虫害预防、有害化学物质清理和水环境清理。
Courses may include plant physiology, biochemistry, current pesticide regulations, forest pest suppression, chemical decontamination, and aquatic weed management.
近十多年来，遥感在森林虫害监测中的应用研究得到了逐步开展，尤其是监测模型的研究，取得了显著的研究进展。
In the recent ten years, gradual research progresses have been made on the remote sensing application in the forest pest monitoring area, especially on the monitoring model.
2000年到2005年之间，351,000平方千米的森林消失，大部分是因为燃烧和虫害。
Between 2000 and 2005 it lost 351, 000 sq km of forest, mostly to fire and pests.
2000年到2005年之间，351,000平方千米的森林消失，大部分是因为燃烧和虫害。
Between 2000 and 2005 it lost 351,000 sq km of forest, mostly to fire and pests.
而且其他地区由于全球变暖导致的干旱、虫害和火灾造成的森林退化也令人担忧。
It will also be offset by an increase in forest dieback elsewhere, caused by rising aridity, drought, pests and fires-all symptoms of global warming.
所有项目不仅提供紧急援助，还帮助各国制定病虫害治理战略，以防止中长期内进一步爆发森林病虫害。
All projects offer more than emergency assistance, helping countries also to develop pest management strategies to prevent further outbreaks in the medium and long term.
在全球范围内，有关病虫害发生率及其对森林和森林产品造成影响的可量化数据有限。
Globally there is limited quantifiable data about pest incidence and their effects on forests and forest products.
所以，通过移走这些腐烂的木头，回收性砍伐可以降低虫害侵袭的危险，进而保护森林的健康。
So, by removing totting wood, salvage logging helps minimize the dangers of insect infestation, thus contributing to the health of the forest.
黔北的地形特殊，以山区为主，没有成片成片的大面积林区，这不利于森林病虫害防治工作的开展。
Special topography of northern Guizhou were large mountainous areas without large area forest region, this went against developing control work of forest pests.
本文论述了利用遥感技术进行森林病虫害监测研究的内容、技术与方法，并探讨了目前遥感监测病虫害存在的问题及其发展趋势。
The study provided the contents and methods of monitoring forest diseases and insects using remote sensing, and also discussed the problems exist and the future development trend at present.
森林病虫害是影响森林健康的主要因素之一。
Forest insect pest and disease is one of the main factors influencing forest health.
对森林病虫害航空遥感监测中的图像拼接问题进行了研究。
Forest insect diseases monitoring based on image mosaicing technique for aerial images were studied.
对“3S”技术在森林病虫害预警中的应用现状、作用进行了分析。
The quota and function of 3S technology in the forest pests are analyzed.
施放烟雾剂是在特定条件下，防治森林病虫害的一种简便而行之有效的方法。
The release of the smoke generator is a handy and effectual measures that are used to control the forest diseases and insect pests under specific conditions.
因为它是酸值很高，树木获得来自土壤的养分就会减少，森林也变得更容易受到干旱和病虫害袭击。
Trees receive fewer nutrients from the earth because it is so acid, and this creates forests that are more vulnerable to drought, disease and insect attack.
将航天遥感技术运用于森林病虫害调查区划中。
The space remote sensing technology is applied to the investigate division of forest pests in the study.
针对萍乡森林病虫害发生情况、特点及成因分析，提出有效控制防治对策。
According to analysis of the reason, condition and character of forest disease and insect pest in Pingxiang City, the author put forward effective prevention and control countermeasures.
文章从森林病虫害灾害的自然属性出发，对森林病虫害灾害的经济损失评估指标体系的建立进行了探索。
Based on the natural properties in forest pest disasters, the evaluation system of the (economic) losses of forest pest disasters was explored.
在分析森林生态系统所发挥的功能与效益的基础上，提出了森林病虫害灾害经济损失评估的指标体系。
According to the main functions and benefits of forestry ecological system, the index system of the economic losses of forest pest disaster evaluation was determined.
目前我国森林病虫害形势严峻，而其主要的防治手段――化学防治效果是相当低下的。
Nowadays forest diseases and insect pests are serious in our country and the pesticide application is inefficient as the main prevention and control means.
此系统应用潜力巨大，为森林病虫害综合治理研究提供了新的途径和方法。
Its structure and function were described. The system provided new methods for forest pest management.
古树名木和古典园林中的森林区域要重点考虑古树的复壮措施及病虫害的防治等。
The forest area of classic garden and ancient tree population should focus on the rejuvenation and pest control.
古树名木和古典园林中的森林区域要重点考虑古树的复壮措施及病虫害的防治等。
The forest area of classic garden and ancient tree population should focus on the rejuvenation and pest control.
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