迁徙量

qiānxǐliàng

迁徙量 — qiānxǐliàng

1. the volume or amount of migration; the number/flow of individuals moving from one place to another (used in demography, ecology, transportation, etc.)

   研究报告显示，该地区的鸟类迁徙量在过去十年中显著下降。 yánjiū bàogào xiǎnshì gāi dìqū de niǎolèi qiānxǐ liàng zài guòqù shínián zhōng xiǎnzhù xiàjiàng — The research report shows that the migration volume of birds in the region has declined significantly over the past ten years.