U.S.-Western Europe Regional Cooperative Research: Tests ofPrinciples for Dynamic Ecosystem Behavior and Physical Resource Theory

该奖项将帮助伊利诺伊州自然历史调查的Robert A. Herendeen博士与丹麦哥本哈根丹麦皇家药学院的Sven E. Jorgensen博士合作；Drs。AnnMari and Bengt-Owe Jansson，瑞典斯德哥尔摩大学；卡尔-埃里克·埃里克森博士，瑞典哥德堡查尔姆斯理工大学。他们将研究耦合的生态经济系统。该研究的一个目标是检验在能量可用性和种植变化下预测动态生态系统行为的几个原则的可行性。研究人员将测试基于物理和生态的分析在多大程度上为经济分析和规划提供了实际投入。这项研究将把对物理资源理论持有不同观点的科学家聚集在一起，使他们能够制定一个相互接受的框架，用于应用该理论，并确定用于测试该理论的数据和实验。导致不同预测的几个生态系统原理将得到检验。这些原则是指(1)能量最大化，(2)优势最大化，(3)功率最大化，(4)系统净输出最大化。海伦丁博士做了原则性的研究。乔根森博士是能量最大化原理的作者，他和他的团队是扰动生态系统方面经验丰富的研究人员。杨松夫妇对波罗的海的生态系统进行了广泛的调查。埃里克森博士的专长是模拟物理生态系统。拟议的研究将导致对系统原则的进一步解释，并对其适用的时间、空间和组织尺度进行连贯的陈述。

This award will help Dr. Robert A. Herendeen, Illinois Natural History Survey, to collaborate with Dr. Sven E. Jorgensen, Royal Danish School of Pharmacy, Copenhagen, Denmark; Drs. AnnMari and Bengt-Owe Jansson, University of Stockholm, Sweden; and Dr. Karl-Erik Eriksson, Chalmers University of Technology, Gothenburg, Sweden. They will study coupled ecological-economic systems. One goal of the research is to examine the viability of several principles for predicting dynamic ecosystem behavior under changing energy availability and cropping. The researchers will test the degree to which physically-based and ecologically-based analyses provide practical inputs into economic analysis and planning. The research will bring together scientists who hold differing views of physical resource theory, and enable them to develop a mutually acceptable framework for applying the theory and identifying data and experiments for testing it. Several ecosystem principles leading to different predictions will be tested. The principles refer to the maximizations of (1) energy, (2) ascendancy, (3) power, and (4) net system output weighted by energy intensities. Dr. Herendeen has done research on principle (4). Dr. Jorgensen is the author of the maximization of energy principle and he and his group are experienced researchers on perturbed ecological systems. The Janssons have extensively investigated the Baltic ecosystem. Dr. Ericksson's specialty is modeling physical ecological systems. The proposed research will lead to further interpretation of the system principles and to a coherent statement of their applicable temporal, spatial, and organizational scales.