| 刘丹，杜春英，于成龙.东北杨树烂皮病发生流行的时空分析*[J].植物保护,2011,37(4):138-141. |
| 东北杨树烂皮病发生流行的时空分析* |
| Spatio temporal analysis of occurrence characteristics of poplar cytospora canker in northeast China |
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| DOI： |
| 中文关键词: |
| 英文关键词:four provinces (regions) in northeast China poplar cytospora canker occurrence characteristics |
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| 中文摘要: |
| 利用数理统计和空间分析方法，对2002-2009年黑龙江省、吉林省、辽宁省和内蒙古自治区杨树烂皮病发生的时间和空间特点进行分析。结果表明：近8年，东北4省（区）均有不同程度杨树烂皮病发生，其中辽宁省发生杨树烂皮病的面积最大，尤其在2006年以后，平均发生2.69万hm2/年；吉林省，黑龙江省和内蒙古自治区发生的面积较小。近2年东北4省（区）杨树烂皮病的发生均有上升趋势；东北4省区的杨树烂皮病发生地主要集中在中东部，其中吉林省的松原市近8年来，每年都有杨树烂皮病发生，平均0.360 7万hm2/年。此项研究将为林业部门和气象部门建立杨树烂皮病发生发展气象预报与灾损评估服务平台，开展该病害的预测预报和影响评价提供必要的研究基础。 |
| 英文摘要: |
| The temporal dynamics and spatial distribution of poplar cytospora canker were analyzed by using the mathematical statistics and spatial analysis in Heilongjiang, Jilin, Liaoning and Inner Mongolia Autonomous Region from 2002 to 2009. The results showed that the poplar cytospora canker occurred to different degrees in the 4 provinces (regions) of northeast China from 2002 to 2009. The most severe area was Liaoning, where it occurred in an average of 26 900 hm2 each year. The second severe area was Jilin, followed by Heilongjiang and Inner Mongolia. The occurrence area of this disease was on the rise in northeast China. This disease occurred mainly in central and eastern regions of the 4 provinces of China. This study would provide a basis for developing weather forecast and impact assessment of poplar cytospora canker for meteorological departments. |
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