From VOA Learning English, this is the Agriculture Report. 这里是美国之音慢速英语农业报道. An area known as dead zone develops every spring in the Gulf of Mexico near the mouth of the Mississippi River. It can spread as much as 13,600 square kilometers, extending all the way to the eastern Texas coast. Scientists know what causes the dead zone -- too much nitrogen, but the solution might be hard to accept. 墨西哥湾的密西西比河口附近每年春天都会变为死水区.它会扩散开至1.36万平方公里,一直延伸到德克萨斯东部海岸.科学家了解到,导致死水区的形成的原因是过量的氮.但是解决这个问题的方法可能难以被接受. Bayani Cardenas is a professor of water studies at the University of Texas at Austin. Bayani Cardenas是德克萨斯大学奥斯汀分校水资源研究的教授. _______________________
