U.S.-Chile: Solution Approaches to Forest Management Problems

9314779吉尼亚德-斯皮尔伯格这个美洲项目奖将支持宾夕法尼亚大学的莫妮克·吉尼亚德-斯皮尔伯格博士和智利大学的安德烈斯·温特劳布博士开展研究合作，为北美和智利的森林管理问题设计有效的解决方法。必须在存在野生动物栖息地和伐区等环境限制的情况下作出中长期综合管理决策，如采伐木材、修建通道、木材运输等。研究结果将为林农提供更好的工具，在面对这些限制时设计有效的解决方法，并将推动解决困难的组合规划问题的最新技术。对自然资源的有效管理在世界各地变得越来越重要，特别是在拥有强大林业工业的智利。对于这个项目，智利方面将专注于启发式算法和与林业环境密切相关的特殊代码的设计和开发，而美方将专注于有效的建模，通过拉格朗日技术获得整数最优值的严格界限，并设计拉格朗日启发式算法。***

9314779 Guignard-Spielberg This Americas Program award will support Dr. Monique Guignard- Spielberg, of the University of Pennsylvania, and Dr. Andres Weintrab, of the University of Chile, in a research collaboration to design efficient solution methods for management problems in North American and Chilean forests. Medium to long range integrated management decisions, such as timber cutting, building of access roads, timber transportation, and others, must be made in the presence of environmental constraints such as wildlife habitats and cutting areas. Research results will provide foresters with better tools for devising efficient solution methods in the face of these constraints and will advance the state of the art in solving hard combinatorial programming problems. Efficient management of natural resources is becoming increasingly important around the world and in Chile in particular, with its strong forestry industry. For this project, the Chilean side will focus on heuristics and the design and development of special codes intimately bound to the forestry environment, while the U.S. side will concentrate on efficient modelling, obtaining tight bounds on the integer optima via Lagrangean techniques and designing Lagrangean heuristics. ***