U.S.-Germany Cooperative Research on Temporal and Spatial Coherence of Primary Productivity and Nutrient Cycling across Lake Districts of Northern Wisconsin and NE Germany

9409364亚当斯该奖项支持麦迪逊威斯康星大学的迈克尔·亚当斯教授和两名研究生与雷纳·科舍尔和位于德国勃兰登堡州北部边缘的内陆淡水生态研究所纽格洛布索野外实验室的其他人合作。这个实验室曾经是东德科学院的一部分，西方的湖泊学家很难进入。这两个研究小组将共同研究美国和德国生物地理环境相似的湖泊主要生产模式的连贯性和其他参数。在一项相关研究中，他们将研究统一对德国东部各州水质的影响。具体地说，他们将收集和比较威斯康星州北部的北温带湖泊长期生态研究(LTER)计划地点和德国东北部梅克伦堡-勃兰登堡湖区的初级生产力和其他湖泊数据。分析将包括每个地点的土地利用模式的历史、与地下水系统相关的各个景观中的相对位置、区域气候以及关于养分负荷和养分循环的信息。该项目是关于前东德水域的第一个重要淡水生态合作项目。正在研究的地区是一个广泛的、重要的冰川后湖区，有1万多个湖泊，面积超过1公顷。对于北温带湖泊LTER遗址的参与者来说，与当地湖泊学家的合作将是一个有趣和宝贵的机会，应该对两个研究小组都有利。观测到的湖泊初级生产力模式可能与全球气候变化有关。这是因为湖泊系统可以作为环境信息的集成者，例如全球太阳辐射和热状况通过湖泊浮游植物的光合作用对无机碳固定的影响。这项研究可能有助于对比大陆和不同纬度之间的这种模式，使用其他类似的生物地理单元。***

9409364 Adams This award supports Professor Michael Adams and two graduate students of the University of Wisconsin at Madison to collaborate with Rainer Koschel and others of the Neuglobsow field laboratory of the Institute for Inland Freshwater Ecology, at the northern edge of Brandenberg State, Germany. This laboratory was once part of the East German Academy of Sciences, and was not easily accessible to Western limnologists. Together the two research groups will study coherence and other parameters of primary production patterns in U.S. and German lakes of similar biogeographical settings. In a related study, they will examine the effect of re- unification on water quality in the eastern states of Germany. Specifically they will collect and compare primary productivity and other limnological data from the North Temperate Lakes Long Term Ecological Research (LTER) Program site in northern Wisconsin and the Mecklenburg-Brandenburg lake district of northeastern Germany. The history of the land use pattern at each location, the relative location in the respective landscape in reference to the groundwater system, the regional climate, and information on nutrient loading and nutrient recycling will be incorporated into the analysis. This project is the first significant freshwater ecology collaboration on waters of the former East Germany. The region being studied is an extensive, important, post- glacial lake district, with more than 10,000 lakes greater than one hectare in surface area. Collaboration with local limnologists will be an interesting and valuable opportunity for participants in the Northern Temperate Lakes LTER site, and should be mutually beneficial to both research groups. Observed patterns in lake primary production may be associated with global change in climate. This is because lake systems can serve as integrators of environmental information, such as the effects of global solar radiation and thermal regimes on inorganic carbo n fixation through photosynthesis of lake phytoplankton. This research may be useful in contrasting such patterns between continents and at different latitudes, using otherwise similar biogeographic units. ***