生物灾害科学Issue(1)：7-12,6.DOI:10.3969/j.issn.2095-3704.2014.01.002
2000-2010年全国森林生物灾害发生、损失与趋势分析
Status Quo, Loss and Trend of Forest Bio-disasters from 2000 to 2010 in China
摘要
Abstract
In China, forests are often damaged by some bio-disasters, mainly including the pest, diseases, wild rats, etc. In this study, we collected the data of forest bio-disasters from 2000 to 2010, computed the loss of directly economic and ecological values, and analyzed the trend with multiple linear regression method. Results showed that the region of forest bio-disasters increased by 0.61%in 2010 compared with that in 2000, and the area of bio-disasters increased by 36.7%, from 8 518 580 hm2 in 2000 to 11 642 430 hm2 in 2010. So there was an obvious up-trend in area from 2000 to 2010. The contribution for this trend was pest area (with 54.2%)>wild rat area (with 33.3%)>disease area (with 12.5%). In effect, all the areas of pest, diseases and wild rats showed an up-trend, especially the damaged area by wild rats increased by 105.18%in 2010, compared with that in 2000. However, most forests were damaged lightly by the bio-disasters, and the increasing trend of forest damage areas was mainly attributed to the increase in lightly-damaged areas by the pest, diseases and wild rats. Then the loss of forest stock volumes, directly economic and ecological values also showed an up-trend. Loss of forest stock volumes was 24 785 000 m3 and loss of ecological values was 89 537 million Yuan in 2010, which increased by 5.2%and 28.5%, respectively, when compared with that in 2000. The ecological loss was mostly attributed to the damage by wild rats. So results showed that both the range and area of forest bio-disasters were enlarged in these ten years, and the new loss of forest resources should be slowed down by taking some control measures.关键词
森林生物灾害/发生面积/发生程度/蓄积损失/直接经济损失/生态服务价值损失Key words
forest bio-disaster/diseases/pest/damage by wild rat/damage area/damage degree/forest stock volume/directly economic loss/ecological loss分类
农业科技引用本文复制引用
曾菊平,曾城,欧阳芳,刘兴平,戈峰..2000-2010年全国森林生物灾害发生、损失与趋势分析[J].生物灾害科学,2014,(1):7-12,6.基金项目
环保部专项 （）
