中文摘要：

基于广东省2005—2014年的森林自然灾害与森林蓄积量的统计数据,利用相关分析与灰色关联度分析探讨自然灾害对森林碳汇量的影响。结果表明：森林碳汇总量呈现增加的趋势,由2005年的4.39亿t碳增加到2014年的6.49亿t碳。森林自然灾害总面积呈逐年下降的趋势,由2005年的74万hm~2下降到2014年的36.1万hm~2。自然灾害总面积、虫害面积与森林碳汇总量表现出高度的负相关关系。3种不同自然灾害与森林碳汇量的关联度在趋势上存在差异,与火灾的关联度最大（0.602）,与虫害的关联度最小（0.514）。

英文摘要：

Based on data on areas affected by natural disasters and forest standing volume in Guangdong Province from 2005 to 2014, the effects of natural disasters on forest carbon sinks were analyzed by using corre- lation analysis and gray correlation degree.The results showed an increasing trend in the amount of forest car- bon sinks ,which grew from 439 million tons in 2005 to 649 million tons in 2012.The total size of areas affected by disasters showed a decreasing trend, which was reduced from 740,000 hectares in 2005 to 361,000 hectares in 2014.A high degree of negative correlation was found between the total size of areas attacked by natural dis- asters and pests and forest carbon sinks. Besides, differences exist in the correlation degree trend in three differ- ent natural disasters and forest carbon sinks, among whom the gray correlation degree with forest fire disasters is the highest （0.602） while that with pests disaster is the lowest （0.514）.