点评:I just added a new word to my vocabulary. Eutrophic. It refers to a lake or body of water that is rich in nutrients and so supporting a dense plant population, the decomposition of which kills animal life by depriving it of oxygen. Lake Mendota in Madison, Wisconsin, is a freshwater eutrophic lake. But its water is unsafe to drink. It is very fertile from all the nutrients carried into the lake from the surrounding landscape, supporting high densities of algae and fish. But the quality of water is degraded. Thus, Lake Mendota has been called "the most studied lake in the world" because the University of Wisconsin-Madison's Center for Limnology, which rests on its southern bank, has done extensive research and concluded that climate change and the associated lengthening of summer weather have driven the annual formation of dead zones or oxygen-deficient layers deep in the water column of Lake Mendota. These dead zones have been shown to remain in the lake for up to two months in the summer and have the potential to devastate the habitats of fish, leading to an increased frequency of harmful algal blooms. That's the bad news. The good news is that Lake Mendota remains one of the most popular attractions in the state. The banks of the lake largely contain expensive luxury homes and condominiums. They also contain protected natural areas and parks, UW-Madison housing, the Memorial Union and several hotels and restaurants. In the summer, swimmers are attracted to five beaches and others engage in boating, fishing, water skiing, wakeboarding, tubing, canoeing, windsurfing, kayaking and sailing. In the winter, sports enthusiasts opt for ice boating, ice skating, ice fishing, cross-country skiing, ice hockey and snowkiting. The northernmost and largest of the four lakes in the Madison area, Lake Mendota borders Madison on the north, east and south, Middleton on the west, Shorewood Hills on the southwest, Maple Bluff on the northeast and Westport o the northwest.
翻译:我刚刚在我的词汇表中添加了一个新词。富营养化。它指的是富含营养物质的湖泊或水体,因此支持密集的植物种群,其分解通过剥夺氧气来杀死动物生命。威斯康星州麦迪逊市的门多塔湖是一个淡水富营养湖。但它的水不能安全饮用。从周围景观带入湖中的所有养分非常肥沃,支持高密度的藻类和鱼类。但是水质变差了。因此,门多塔湖被称为“世界上研究最多的湖泊”,因为位于其南岸的威斯康星大学麦迪逊分校的湖泊学中心进行了广泛的研究并得出结论,气候变化和相关的夏季天气延长导致门多塔湖水柱深处每年形成死区或缺氧层。这些死区已被证明在夏季会在湖中停留长达两个月,并有可能破坏鱼类的栖息地,导致有害藻类大量繁殖的频率增加。这是坏消息。好消息是门多塔湖仍然是该州最受欢迎的景点之一。湖岸主要是昂贵的豪宅和公寓。它们还包含受保护的自然区域和公园、威斯康星大学麦迪逊分校的住房、纪念联盟和几家酒店和餐馆。在夏季,游泳者被五个海滩吸引,其他人则从事划船、钓鱼、滑水、花式滑水、漂流、独木舟、风帆冲浪、皮划艇和帆船运动。冬季,运动爱好者选择冰上划船、滑冰、冰钓、越野滑雪、冰球和雪地风筝。门多塔湖是麦迪逊地区四个湖泊中最北端和最大的一个,北、东、南与麦迪逊接壤,西与米德尔顿接壤,西南与肖尔伍德山接壤,东北与枫树崖接壤,西北部与韦斯特波特接壤。