海上风电场的鸟类碰撞风险。
Avian collision risk at an offshore wind farm.
作者信息
Desholm Mark, Kahlert Johnny
机构信息
Department of Wildlife Ecology and Biodiversity, National Environmental Research Institute, Grenåvej 12, 8410 Rønde, Denmark.
出版信息
Biol Lett. 2005 Sep 22;1(3):296-8. doi: 10.1098/rsbl.2005.0336.
We have been the first to investigate whether long-lived geese and ducks can detect and avoid a large offshore wind farm by tracking their diurnal migration patterns with radar. We found that the percentage of flocks entering the wind farm area decreased significantly (by a factor 4.5) from pre-construction to initial operation. At night, migrating flocks were more prone to enter the wind farm but counteracted the higher risk of collision in the dark by increasing their distance from individual turbines and flying in the corridors between turbines. Overall, less than 1% of the ducks and geese migrated close enough to the turbines to be at any risk of collision.
我们率先通过雷达追踪长寿鹅和鸭的昼夜迁徙模式，来研究它们是否能够探测并避开大型海上风电场。我们发现，从建设前到初始运营阶段，进入风电场区域的鸟群百分比显著下降（下降了4.5倍）。夜间，迁徙的鸟群更倾向于进入风电场，但它们通过增加与单个涡轮机的距离以及在涡轮机之间的通道飞行，来抵消在黑暗中更高的碰撞风险。总体而言，只有不到1%的鸭和鹅在迁徙时距离涡轮机足够近，从而有任何碰撞风险。
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