Development of a numerical simulation model for long-range migration of rice planthoppers
Development of a numerical simulation model for long-range migration of rice planthoppers
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DOI：
10.1016/j.agrformet.2005.07.018
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发表时间：
2005-11-10
影响因子：
6.2
通讯作者：
Suzuki, Y
中科院分区：
文献类型：
--
作者：
Furuno, A;Chino, M;Suzuki, Y
利用高性能的大气扩散模式，通过引入与飞行行为相关的参数，模拟了稻飞虱的越洋迁飞。该模式包括一个用于计算气象场的大气动力子模式和一个用于计算大气扩散的粒子随机行走子模式。该模型还可用于确定稻飞虱迁飞的释放区域和起飞时间。使用这个模型，我们进行了一个案例研究，模拟在10个地点在1998年6月中旬的网陷阱捕获的稻飞虱迁移到日本西部。在模拟中，将56个区域设置为暂定起飞区域，每个区域的宽度为2个纬度和经度。起飞时间假定为黎明和黄昏。通过秩相关系数将各起飞区的相对移民密度与各观测密度进行比较，找出移民来源区。可能的迁徙释放区分布在北纬23-27度，包括福建和台湾，与观测结果相关性较高。允许稻飞虱连续飞行的空气温度和飞行持续时间是模拟结果的关键参数。(c)2005 Elsevier B. V.保留所有权利。
Transoceanic migration of rice planthoppers was simulated by incorporating several parameters related to the flight behavior with a high performance atmospheric dispersion model. The model consists of an atmospheric dynamic submodel for calculating meteorological fields and a particle random-walk submodel for atmospheric dispersion. The model also functions in specifying the release area and take-off time of the migration of planthoppers. Using this model, we carried out a case study simulating the migration of planthoppers to western Japan with net-trap catches at 10 locations in mid-June 1998. In the simulation, 56 areas each with a width of 2 degrees of latitude and longitude were set as tentative take-off areas. The take-off duration was assumed to be I It at dawn and dusk. To find the migration source areas, the relative density of immigrants originating from each take-off area was compared with each observed density by rank correlation coefficients. Possible migration release areas, which showed a high correlation to observations, were distributed around 23-27 degrees N, including Fujian and Taiwan. An air temperature that allowed the planthoppers to fly continuously and flight duration were critical parameters for the simulation results. (c) 2005 Elsevier B.V. All rights reserved.