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نویسنده: حسین بدری پور - جمعه ٢٠ آبان ۱۳٩٠

فائو دستورالعملی برای کنترل آفات و بیماری های جنگلی تدوین نموده است که می توانید این گزارش  صفحه ای را از این آدرس داونلود کنید.

سالانه 35 میلیون هکتار جنگل در اثر بیماریهای ناشی از آفات از بین می روند که رقم قابل توجهی است و ضروری است کشورها در زمینه کنترل سریع آفات و بیماری ها  اقدام نمایند. بخشی از این بیماری ها ناشی از تغییر اقلیم می باشند و بخشی به دلیل افزایش روند تجارت محصولات چوبی، بذر و نهال درختان می باشد.

UN GUIDE SEEKS TO PREVENT SPREAD OF FOREST-DAMAGING PESTS
New York, Nov 10 2011 12:05PM
A guide published today by the United Nations aims to help countries prevent forest-damaging pests from spreading to new areas as a result of climate change and growing global trade.   

The <"http://www.fao.org/docrep/013/i2080e/i2080e.pdf">guide, put together by the Food and Agriculture Organization (FAO), was presented by the agency in Beijing, during the Second Asia-Pacific Forestry Week.   

“Due to climate change, previously inhospitable sites can become suitable for ‘alien’ pests that are accidentally transported through international trade in wood products, seeds or nursery plants – as well as trade in other commodities packaged with wood materials,” said Eduardo Rojas-Briales, FAO’s Assistant Director-General for Forestry.


“The guide provides suggestions on how to reduce the risk of pest spread and to implement effective pest management strategies at every step of the forest commodities chain,” he added.   

At least 35 million hectares of forest are damaged by outbreaks of insect pests each year.   

According to a <"http://www.fao.org/news/story/en/item/94381/icode/">news release issued by FAO, one of the factors that have exacerbated the spread of pests has been the increase in global trade. Between 1992 and 2008, the volume of wood products traded internationally surged by 125 per cent.   

In addition, rising summer temperatures caused by global warming have accelerated insects’ capacity to reproduce and improved their chances of surviving winters. In Canada, for example, years of mild winter have increased the survival rate of the mountain pine beetle, and infestations in British Columbia province are causing massive destruction of pines. The pest has reportedly affected some 17.5 million hectares and destroyed 725 million cubic metres of timber in the past 20 years.   

The <em>Guide to Implementation of Phytosanitary Standards in Forestry</em> provides various ways to cope with these threats. Careful surveillance, better forest management and improved harvest and transport operations are among the things countries need to implement, as well as establishing international standards to ensure the safe movement of forest commodities.   

The guide, which was written by an international group of scientists and plant health experts, is intended for policy-makers, managers and forest workers. In addition, FAO has stated its focus will now shift to strengthening individual countries’ capacities to implement the guide.

حسین بدری پور
من بیش از یک دهه سابقه کار در سازمان جنگلها، مراتع و آبخیزداری کشور را دارم و در حال حاضر هم در مقطع دکترای منابع طبیعی تحصیل می نمایم. هدف از راه اندازی این وبلاگ اطلاع رسانی در خصوص مباحث روز منابع طبیعی و محیط زیست از قبیل همایش ها، پروژه ها و طرح های مرتبط در سطح ملی و بین المللی می باشد.
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