| 张洪亮1,邓自旺2,倪绍祥1,谌芸2.气候异常对青海湖环湖地区草地蝗虫灾害发生的影响[J].植物保护,2002,28(4):5-8. |
| 气候异常对青海湖环湖地区草地蝗虫灾害发生的影响 |
| Effects of climate anomaly on grasshopper in the pasture areas around Qinghai Lake |
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| DOI： |
| 中文关键词: 蝗虫 气候 种群动态 发生 |
| 英文关键词:grasshopper climate population dynamics occurrence |
| 基金项目: |
| 张洪亮1 邓自旺2 倪绍祥1 谌芸2 |
| 1.南京师范大学地学院 南京210097;2.南京气象学院环境科学系 南京210044 |
| 摘要点击次数: 519 |
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| 中文摘要: |
| 采用合成分析和相关分析方法研究了气候异常对青海湖环湖地区草地蝗虫灾害发生的影响。合成分析表明蝗虫灾害严重与当年气候状况关系密切。蝗灾等级与前一年7～8月平均气温、当年2～8月月平均气温、冬季降水量呈正相关 ,而与前一年7～9月降水量、10～12月气温、当年5～9月降水量呈负相关关系。这说明前一年和当年夏季温暖少雨、冬季多雪有利于蝗虫生长发育和越冬 ,会造成蝗灾 ,相反则不会发生 |
| 英文摘要: |
| Effects of climate anomaly on infestation level of grasshopper in the pasture areas around Qinghai Lake were examined using composition and correlation analysis. Composition analysis results indicated that climate conditions were closely related with infestation levels. Occurrence levels were posatively correlated with monthly mean temperature from July to August in the previous year and monthly average temperature from February to August and rainfall in winter in the current year. Whereas they were negatively correlated with monthly rainfall from July to September and monthly mean temperature from October to November in the previous year, and monthly rainfall from May to September in the current year. These results suggested that warm, dry summer and snowy winter in the previous year accompanied by warm, dry summer in the current year will be favorable to wintering and development of grasshopper, and vice versa. |
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