我国林业外来有害生物入侵现状及防控对策（Present situation and Control Countermeasures of invasive exotic pests in forestry in China）.docVIP

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我国林业外来有害生物入侵现状及防控对策（Present situation and Control Countermeasures of invasive exotic pests in forestry in China）.doc

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我国林业外来有害生物入侵现状及防控对策（Present situation and Control Countermeasures of invasive exotic pests in forestry in China）

我国林业外来有害生物入侵现状及防控对策（Present situation and Control Countermeasures of invasive exotic pests in forestry in China） The present situation and Countermeasures of forestry exotic harmful organisms invasion in China are the documents to be printed: the present situation of invasive exotic pests in forestry in China and the Countermeasures for prevention and control Present situation and Control Countermeasures of invasive exotic pests in forestry in China Author: Wu Jian posted from: Wu Jian hits: 135 The total amount of forest resources in China is seriously insufficient, and the volume is low, the proportion of pure plantation, uneven distribution of resources; the forest coverage rate of 16.55%, the per capita forest area and volume were only 0.12 hectares and 8.6 cubic meters, and only the world average level of 21% and 12%. But Chinas forest pest damage serious forest pest has been found more than 8000 species, including 5020 species of insect pest and disease of 2918 rodent species and 160 species, the forest pest disaster caused by more than 100. Since 1999, the Chinese government has successively carried out the project management of the forest pests and diseases which are the most serious and the most harmful to the forest, and have achieved remarkable results. I. fully understanding the importance of preventing harmful foreign organisms in forestry and ecological construction in China In recent years, Chinas forestry work has been paid great attention by the central government and paid great attention from all walks of life, and the forestry industry has been developing vigorously. According to statistics, only in the first half of 2003, the country has completed 78 million mu of afforestation area, laying a good foundation for the leap forward development of forestry. However, with the expansion of the area of forest resources, all kinds of man-made or natural factors on the destruction of forest resources is more and more serious, the protection of the ecologi