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• 方法与技术 • 上一篇    

洞庭湖区东方田鼠灾害预警分析

徐正刚1,2,赵运林3,李波1,张美文1,王勇1**   

  1. 1中国科学院亚热带农业生态研究所, 中国科学院洞庭湖湿地生态观测站, 亚热带农业生态过程重点实验室, 长沙 410125; 2中国科学院大学, 北京 100049; 3湖南城市学院, 湖南益阳 413000)  
  • 出版日期:2013-10-10 发布日期:2013-10-10

Forecast of Microtus fortis disaster in Dongting Lake region of China.

XU Zheng-gang1,2, ZHAO Yun-lin3, LI Bo1, ZHANG Mei-wen1, WANG Yong1**   

  1. (1 Institute of Subtropical Agriculture, Chinese Academy of Sciences, Dongting Lake Station for Wetland Ecosystem Research, Chinese Academy of Sciences, Key Laboratory of Agroecological Processes in Subtropical Region, Changsha 410125, China; 2University of Chinese Academy of Sciences, Beijing 100049, China; 3Hunan City University, Yiyang 413000, Hunan, China)
  • Online:2013-10-10 Published:2013-10-10

摘要: 为了有效减少洞庭湖区东方田鼠对农业生产造成的损失,采用样点调查的方法对东方田鼠灾害进行了调查。自2003年开始,在洞庭湖区设置8个典型调查点,对每个调查点连续调查至少3年,每个季节至少调查1次。结果表明:不同地点东方田鼠的暴发风险等级存在差异,东洞庭湖是暴发风险等级较高的地区;东方田鼠种群的年内波动为单峰,且峰值出现在夏季;东洞庭湖西岸洲滩为东方田鼠的主要迁出地,东洞庭湖东岸则主要是由于迁入的东方田鼠而导致鼠害发生。通过分析不同地点东方田鼠成灾的规律,建立相应的预警模型,能够实现东方田鼠的综合管理。

关键词: 热扩散探针(TDP), 五针热脉冲数字探头(PHPP), 干旱地区, 树干液流

Abstract:

An investigation was conducted on the Microtus fortis disaster in the Dongting Lake region of China, aimed to effectively reduce the agricultural production loss caused by this vole. Since 2003, 8 typical sampling sites along the Lake were installed, and the investigation at each site was conducted at least once in each season for more than 3 years. There existed differences in the outbreak risk degree of the M. fortis at different sites, and the East Dongting Lake area was considered as the higher outbreak risk region. The M. fortis population had a singlepeak fluctuation within a year, and peaked in summer. The west bank of East Dongting Lake was the main emigrated area of M. fortis, while the east bank of the Lake was the main immigrated area of this vole, causing the occurrence of M. fortis disaster. There was a close correlation between the quantity and the infection degree of the immigrated M. fortis. Through the analysis on the occurrence patterns of M. fortis disaster at different sites, a corresponding forecast model was established, which could be helpful to the integrative management of M. fortis disaster.
 

Key words: sap flow, thermal diffusion probe (TDP), arid region., penta-needle heat pulse probe (PHPP)